title
Introduction to Solid State Drives (SSD)

description
Description: Solid State Drives are Quieter, Cooler, and generally more reliable and faster then standard platter type hard drives. But because SSD's come in many different types you need to know what to look for when buying one. In this class we talk about: IOPS = Input/ Output Operations per Second Sequential Read/ Write Speed Random Read/ Write Speed Interface = SATA/ PCIe/ USB / IDE For Classes, Class Notes and Blog Posts: http://www.EliTheComputerGuy.com Join the Conversation at Our Online Community: http://ETCGNetwork.com Visit the Vlog YouTube Channel at: http://www.YouTube.com/EliComputerGuyLive Follow us on Facebook at: http://www.Facebook.com/EliComputerGuy Follow us on Twitter at: http://www.Twitter.com/EliComputerGuy

detail
{'title': 'Introduction to Solid State Drives (SSD)', 'heatmap': [{'end': 177.442, 'start': 119.748, 'weight': 0.878}, {'end': 872.357, 'start': 777.951, 'weight': 0.708}, {'end': 1001.061, 'start': 968.071, 'weight': 0.724}, {'end': 1066.028, 'start': 1045.601, 'weight': 0.73}, {'end': 1105.104, 'start': 1077.931, 'weight': 0.731}], 'summary': 'Provides a comprehensive introduction to solid state drives (ssd), highlighting their benefits including potential performance improvements, speed, power efficiency, durability, and cost-saving implications in enterprise environments. it also discusses memory wear, maintenance, purchasing factors, and the impact of pci express drives on boot speed, emphasizing their significance in data center environments.', 'chapters': [{'end': 389.118, 'segs': [{'end': 28.132, 'src': 'embed', 'start': 3.609, 'weight': 0, 'content': [{'end': 9.476, 'text': "Hello again, as you know I am Eli the Computer Guy and today's class is introduction to solid state drives.", 'start': 3.609, 'duration': 5.867}, {'end': 15.663, 'text': 'So solid state drives are one of the greatest things since sliced bread for computer hardware.', 'start': 9.796, 'duration': 5.867}, {'end': 20.769, 'text': 'Solid state drives are really, really, really, really, really just amazing things.', 'start': 16.043, 'duration': 4.726}, {'end': 28.132, 'text': 'And if you are not using a solid state drive in your PC right now, you should really think about doing it.', 'start': 21.429, 'duration': 6.703}], 'summary': 'Introduction to solid state drives: a game-changer in computer hardware.', 'duration': 24.523, 'max_score': 3.609, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/AB-JUyQYxIw/pics/AB-JUyQYxIw3609.jpg'}, {'end': 102.974, 'src': 'embed', 'start': 70.655, 'weight': 1, 'content': [{'end': 77.199, 'text': 'And ironically, the one thing that many people usually completely overlook is the hard drive.', 'start': 70.655, 'duration': 6.544}, {'end': 84.563, 'text': 'And honestly, truly, the hard drive is usually the biggest bottleneck on your computer.', 'start': 77.639, 'duration': 6.924}, {'end': 89.226, 'text': 'The hard drive is the one place where everything slows down.', 'start': 84.803, 'duration': 4.423}, {'end': 91.747, 'text': 'You can have 100 gigs of RAM in your computer.', 'start': 89.266, 'duration': 2.481}, {'end': 102.974, 'text': "you can have an i7, whatever core processor, and if you're not using a fast hard drive, your entire computer is going to just chug along.", 'start': 91.747, 'duration': 11.227}], 'summary': 'The hard drive is often overlooked but is the biggest bottleneck on a computer, even with high ram and processor.', 'duration': 32.319, 'max_score': 70.655, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/AB-JUyQYxIw/pics/AB-JUyQYxIw70655.jpg'}, {'end': 177.442, 'src': 'heatmap', 'start': 119.748, 'weight': 0.878, 'content': [{'end': 125.454, 'text': 'In solid state drives they use what is called NAND flash memory.', 'start': 119.748, 'duration': 5.706}, {'end': 130.338, 'text': 'So NAND flash memory is what is called non-volatile memory.', 'start': 126.014, 'duration': 4.324}, {'end': 137.185, 'text': 'So the normal RAM that you are used to using DDR123 RAM is what is called a volatile memory.', 'start': 130.499, 'duration': 6.686}, {'end': 145.132, 'text': 'What volatile memory means is that it only is able to store information when there is an electrical charge going to the memory.', 'start': 137.445, 'duration': 7.687}, {'end': 150.818, 'text': 'So as long as there is electricity going to that memory, it is able to hold the information.', 'start': 145.152, 'duration': 5.666}, {'end': 155.344, 'text': 'As soon as the electricity is cut off though, all the information is lost.', 'start': 150.858, 'duration': 4.486}, {'end': 159.509, 'text': 'Well, with NAND flash memory this is non-volatile memory.', 'start': 155.604, 'duration': 3.905}, {'end': 168.62, 'text': 'what that means is, when the power is cut off, that the memory stays in whatever state it was when the power was there, so either in the off and on.', 'start': 159.509, 'duration': 9.111}, {'end': 177.442, 'text': 'So, basically, that is why these solid-state drives are able to keep information, whereas normal RAM, when you reboot the system,', 'start': 168.94, 'duration': 8.502}], 'summary': 'Solid state drives use non-volatile nand flash memory, retaining data without electrical charge.', 'duration': 57.694, 'max_score': 119.748, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/AB-JUyQYxIw/pics/AB-JUyQYxIw119748.jpg'}, {'end': 238.99, 'src': 'embed', 'start': 201.611, 'weight': 3, 'content': [{'end': 208.296, 'text': 'If you compare a solid-state drive compared to a 5400 RPM hard drive, it is going to be much, much faster.', 'start': 201.611, 'duration': 6.685}, {'end': 210.677, 'text': "Compared to a 7200, it's going to be faster.", 'start': 208.596, 'duration': 2.081}, {'end': 213.519, 'text': "Compared to a 10,000 RPM drive, it's going to be faster.", 'start': 210.717, 'duration': 2.802}, {'end': 222.124, 'text': "Compared to the SCSI 15,000 RPM drives, It depends on what solid state drive you're using.", 'start': 213.579, 'duration': 8.545}, {'end': 230.227, 'text': 'But generally and this is one thing you should think about generally the solid state drives are going to be faster than the standard platter type hard drives.', 'start': 222.164, 'duration': 8.063}, {'end': 236.83, 'text': 'Beyond being faster, one of the nice things with the solid state drives is they use less power.', 'start': 230.587, 'duration': 6.243}, {'end': 238.99, 'text': 'So they actually draw less electricity.', 'start': 236.99, 'duration': 2}], 'summary': 'Solid-state drives are much faster than standard hard drives, using less power.', 'duration': 37.379, 'max_score': 201.611, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/AB-JUyQYxIw/pics/AB-JUyQYxIw201611.jpg'}, {'end': 350.019, 'src': 'embed', 'start': 322.545, 'weight': 5, 'content': [{'end': 326.71, 'text': "So that's one of the things that you guys should be thinking about, again, as modern technology professionals.", 'start': 322.545, 'duration': 4.165}, {'end': 333.698, 'text': 'Beyond their fast, beyond the energy efficiency, again, since they have no moving parts, they are very quiet.', 'start': 327.11, 'duration': 6.588}, {'end': 335.781, 'text': "They're essentially silent.", 'start': 334.259, 'duration': 1.522}, {'end': 344.012, 'text': 'And since there are no moving parts in there, one of the nice things with them is that they resist damage due to vibration.', 'start': 336.742, 'duration': 7.27}, {'end': 346.815, 'text': "Now, when you're dealing with a normal hard drive, right?", 'start': 344.052, 'duration': 2.763}, {'end': 350.019, 'text': 'A normal hard drive has those platters in there spinning at 5400, 7200, 10,000, 15,000 RPM per second.', 'start': 346.835, 'duration': 3.184}], 'summary': 'Modern technology professionals should consider ssds for their speed, energy efficiency, silence, and resistance to damage from vibration, unlike traditional hard drives.', 'duration': 27.474, 'max_score': 322.545, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/AB-JUyQYxIw/pics/AB-JUyQYxIw322545.jpg'}], 'start': 3.609, 'title': 'Solid state drives', 'summary': 'Introduces and discusses the importance, benefits, and advantages of solid-state drives as a significant upgrade for computer hardware, highlighting potential performance improvements, speed, power efficiency, durability, and cost-saving implications in enterprise environments.', 'chapters': [{'end': 108.115, 'start': 3.609, 'title': 'Introduction to solid state drives', 'summary': 'Discusses the importance of solid state drives as a significant upgrade for computer hardware, highlighting how traditional hard drives can act as a bottleneck and emphasizing the potential performance improvement by using solid state drives.', 'duration': 104.506, 'highlights': ['Solid state drives are considered as one of the greatest advancements in computer hardware, significantly improving performance. If not currently using a solid state drive, it is highly recommended to consider the upgrade.', 'The hard drive is often overlooked as a potential bottleneck in computer performance, despite having a significant impact. Even with high specifications such as 100 gigs of RAM and a powerful processor, a slow hard drive can considerably slow down the entire system.', 'The bottleneck in computers and servers is often attributed to the slowest component, which can hinder the overall performance. It is important to consider the impact of hard drives, rather than solely focusing on components like CPU, RAM, or graphics card.']}, {'end': 389.118, 'start': 108.115, 'title': 'Solid state drives: benefits and advantages', 'summary': 'Discusses the benefits of solid-state drives, focusing on their speed, power efficiency, and durability, and emphasizes their cost-saving implications in enterprise environments.', 'duration': 281.003, 'highlights': ["Solid-state drives are generally much faster than other types of hard drives, including 5400 RPM, 7200 RPM, and 10,000 RPM drives. Comparative analysis of solid-state drives' speed against various types of hard drives, emphasizing their superiority.", 'Solid state drives draw less electricity, leading to cost savings, particularly significant in enterprise environments with hundreds or thousands of computers running 24/7. Discussion of the power efficiency of solid-state drives and its cost-saving implications in enterprise environments.', 'Solid-state drives are very quiet and resist damage due to vibration, attributed to the absence of moving parts. Emphasizing the quiet operation and durability of solid-state drives due to the absence of moving parts.']}], 'duration': 385.509, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/AB-JUyQYxIw/pics/AB-JUyQYxIw3609.jpg', 'highlights': ['Solid-state drives significantly improve computer performance, making it a highly recommended upgrade.', "The hard drive's impact on computer performance is often overlooked, even with high specifications.", 'Bottlenecks in computers and servers are often attributed to the slowest component, emphasizing the importance of considering hard drive performance.', 'Solid-state drives outperform other types of hard drives in speed, including 5400 RPM, 7200 RPM, and 10,000 RPM drives.', 'Solid-state drives draw less electricity, leading to significant cost savings in enterprise environments.', 'Solid-state drives are very quiet and resistant to damage due to the absence of moving parts, emphasizing their durability.']}, {'end': 594.537, 'segs': [{'end': 413.169, 'src': 'embed', 'start': 389.258, 'weight': 1, 'content': [{'end': 396.841, 'text': "Since these SSD drives don't have any moving parts in them, you don't have to worry about that type of vibration.", 'start': 389.258, 'duration': 7.583}, {'end': 402.564, 'text': 'Also, the good part with the solid state drives is they run relatively cool.', 'start': 397.342, 'duration': 5.222}, {'end': 405.205, 'text': 'So this can be a real benefit.', 'start': 402.944, 'duration': 2.261}, {'end': 413.169, 'text': "if you are dealing with environments that get very hot and you don't want to add additional heat because of your computing equipment,", 'start': 405.205, 'duration': 7.964}], 'summary': 'Ssd drives are vibration-free and run cool, making them beneficial in hot environments.', 'duration': 23.911, 'max_score': 389.258, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/AB-JUyQYxIw/pics/AB-JUyQYxIw389258.jpg'}, {'end': 481.445, 'src': 'embed', 'start': 433.815, 'weight': 0, 'content': [{'end': 441.18, 'text': 'So with the solid state drives, because of this NAND flash memory, this was more prevalent a few years ago, but it still exists.', 'start': 433.815, 'duration': 7.365}, {'end': 448.646, 'text': 'Basically, the more the memory is used, the memory does in fact wear out over time.', 'start': 441.48, 'duration': 7.166}, {'end': 454.15, 'text': "There's now special algorithms and software built into these hard drives to try to prevent that.", 'start': 448.686, 'duration': 5.464}, {'end': 461.195, 'text': 'But the reality is, is that solid state drives do wear out through normal usage over time.', 'start': 454.37, 'duration': 6.825}, {'end': 468.379, 'text': 'This is true, but again, for most of you, it is not going to matter.', 'start': 462.396, 'duration': 5.983}, {'end': 477.503, 'text': 'If you use your computer day in, day out, as an average user, your solid-state drive is probably going to last 10 years, which, frankly,', 'start': 468.599, 'duration': 8.904}, {'end': 481.445, 'text': "is going to be a lot longer than you're probably going to own your computer.", 'start': 478.203, 'duration': 3.242}], 'summary': 'Solid state drives can last about 10 years with normal usage, longer than typical ownership.', 'duration': 47.63, 'max_score': 433.815, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/AB-JUyQYxIw/pics/AB-JUyQYxIw433815.jpg'}], 'start': 389.258, 'title': 'Solid-state drives: benefits and memory wear', 'summary': 'Discusses the benefits of solid-state drives, including resistance to vibration and cool operation. it also addresses memory wear, stating that for average users, the drives can last up to 10 years. additionally, it highlights the situational impact of memory wear, emphasizing its significance in data center environments, where solid state hard drives last twice as long as normal platter-based hard drives.', 'chapters': [{'end': 505.561, 'start': 389.258, 'title': 'Solid-state drives: benefits and wear', 'summary': 'Discusses the benefits of solid-state drives, including their resistance to vibration and ability to run relatively cool, and addresses concerns about memory wear, stating that for average users, the drives can last up to 10 years, exceeding typical computer ownership periods.', 'duration': 116.303, 'highlights': ['Solid-state drives run relatively cool, making them beneficial for use in hot environments, where additional heat from computing equipment is a concern.', 'Solid-state drives can last up to 10 years for average users, exceeding typical computer ownership periods.', 'Memory wear in solid-state drives is addressed through special algorithms and software, leading to a longer lifespan for most users.', 'The absence of moving parts in solid-state drives eliminates concerns about vibration, contributing to their durability and reliability.', 'Solid-state drives may wear out over time due to memory usage, but this is unlikely to be a significant issue for most users.']}, {'end': 594.537, 'start': 505.561, 'title': 'Memory wear in solid state drives', 'summary': 'Discusses the situational impact of memory wear in solid state drives, highlighting that for average and small business users, memory wear is not a significant concern, while in data center environments such as those of facebook and travelocity, the issue becomes pertinent due to continuous usage, with solid state hard drives lasting twice as long as normal platter-based hard drives.', 'duration': 88.976, 'highlights': ['Solid state hard drives generally last twice as long as normal platter-based hard drives, making memory wear a concern in data center environments.', 'For average and small business users, memory wear in solid state drives is not a significant concern.', 'Memory wear becomes a real issue in data center environments with continuous usage, such as servers running Facebook or Travelocity.']}], 'duration': 205.279, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/AB-JUyQYxIw/pics/AB-JUyQYxIw389258.jpg', 'highlights': ['Solid-state drives can last up to 10 years for average users, exceeding typical computer ownership periods.', 'Solid-state drives run relatively cool, making them beneficial for use in hot environments, where additional heat from computing equipment is a concern.', 'The absence of moving parts in solid-state drives eliminates concerns about vibration, contributing to their durability and reliability.', 'Memory wear in solid-state drives is addressed through special algorithms and software, leading to a longer lifespan for most users.', 'Solid state hard drives generally last twice as long as normal platter-based hard drives, making memory wear a concern in data center environments.']}, {'end': 1095.536, 'segs': [{'end': 645.338, 'src': 'embed', 'start': 618.823, 'weight': 1, 'content': [{'end': 622.705, 'text': "if you're dealing with platter hard drives, I would suggest not worrying about it,", 'start': 618.823, 'duration': 3.882}, {'end': 627.928, 'text': "because it's going to take you like five days to defrag three terabyte platter hard drive.", 'start': 622.705, 'duration': 5.223}, {'end': 635.012, 'text': "but because of the memory wear issue, you don't want to defragment solid state drives, because when you do the defragmenting,", 'start': 627.928, 'duration': 7.084}, {'end': 641.796, 'text': 'it moves all of that data around, and every time data gets moved around on a disk it does wear out that memory.', 'start': 635.012, 'duration': 6.784}, {'end': 645.338, 'text': "so in general, you don't want to defrag your solid state drives.", 'start': 641.796, 'duration': 3.542}], 'summary': "Don't defrag platter hard drives, takes 5 days. avoid defragmenting solid state drives due to memory wear.", 'duration': 26.515, 'max_score': 618.823, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/AB-JUyQYxIw/pics/AB-JUyQYxIw618823.jpg'}, {'end': 705.489, 'src': 'embed', 'start': 680.873, 'weight': 0, 'content': [{'end': 688.438, 'text': 'It gets a little complicated, but basically understand that every once in a while, you should do something called trim your solid state drive.', 'start': 680.873, 'duration': 7.565}, {'end': 693.921, 'text': 'It is the equivalent, same, same, but different, of defragmenting your drive.', 'start': 688.578, 'duration': 5.343}, {'end': 701.627, 'text': "Now, if you're dealing with a modern Windows operating system, Windows 7, Windows 8, it automatically trims your solid state drive for you.", 'start': 694.202, 'duration': 7.425}, {'end': 705.489, 'text': "If you're dealing with Vista XP,", 'start': 702.027, 'duration': 3.462}], 'summary': 'Regularly trim solid state drives to maintain performance, automatic in modern windows os.', 'duration': 24.616, 'max_score': 680.873, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/AB-JUyQYxIw/pics/AB-JUyQYxIw680873.jpg'}, {'end': 872.357, 'src': 'heatmap', 'start': 752.819, 'weight': 3, 'content': [{'end': 753.899, 'text': "So that's the memory part.", 'start': 752.819, 'duration': 1.08}, {'end': 760.801, 'text': 'Depending on how that memory is functionally built depends on how fast that memory is.', 'start': 754.399, 'duration': 6.402}, {'end': 765.784, 'text': 'So different types of memory are going to be faster or slower.', 'start': 761.101, 'duration': 4.683}, {'end': 769.506, 'text': 'Just like with a normal hard drive, where you can buy a 5400 RPM which is slower than a 7200,, which is slower than a 10,000,,', 'start': 766.144, 'duration': 3.362}, {'end': 771.567, 'text': 'which is slower than a 15,000, same is true in the solid state drive realm.', 'start': 769.506, 'duration': 2.061}, {'end': 786.116, 'text': "Different drive material is either faster or slower than other material, and we're going to show you that in a second.", 'start': 777.951, 'duration': 8.165}, {'end': 791.078, 'text': "The other thing that you have to think about when you're dealing with solid-state drives is just like everything else,", 'start': 786.356, 'duration': 4.722}, {'end': 796.181, 'text': "you have to think about bottlenecks, and it's the interface for the solid-state drive.", 'start': 791.078, 'duration': 5.103}, {'end': 799.623, 'text': 'So you can connect a solid-state drive to your computer in many ways.', 'start': 796.301, 'duration': 3.322}, {'end': 805.706, 'text': 'So normally, the normal way everybody does now is SATA, so SATA 3.', 'start': 800.043, 'duration': 5.663}, {'end': 810.569, 'text': 'but your hard drive, your motherboard could also have SATA 2 or SATA 1.', 'start': 805.706, 'duration': 4.863}, {'end': 813.731, 'text': 'Remember, those have different transfer speeds.', 'start': 810.569, 'duration': 3.162}, {'end': 820.615, 'text': "You can also connect, and if you're in the, so normally you're gonna be connecting with SATA, SATA 3, and that has its speed.", 'start': 814.191, 'duration': 6.424}, {'end': 829.559, 'text': "If you're in the enterprise world or if you have some extra money like me, because I'm thinking about buying one you can buy a PCI Express SSD card.", 'start': 821.015, 'duration': 8.544}, {'end': 838.022, 'text': "So what this is, is it's an SSD drive that you actually plug into the PCI Express port on your motherboard.", 'start': 829.82, 'duration': 8.202}, {'end': 842.864, 'text': 'This is going to be the absolute fastest interface of any of these hard drives.', 'start': 838.303, 'duration': 4.561}, {'end': 852.848, 'text': "If you're looking for the absolute fastest drive that you can put into your computer, you're going to be wanting a PCI Express SSD drive.", 'start': 843.164, 'duration': 9.684}, {'end': 858.07, 'text': "that's going to be the fastest, because the material, the NAND flash memory,", 'start': 852.848, 'duration': 5.222}, {'end': 861.212, 'text': 'is going to be fastest and the connection to your motherboard is going to be fastest.', 'start': 858.07, 'duration': 3.142}, {'end': 872.357, 'text': "So you've got SATA, you've got PCIe, you also can get IDE, solid state drives and even as you know, little flash thumb USB drives.", 'start': 861.592, 'duration': 10.765}], 'summary': 'Different types of memory and connections impact speed. pcie ssd is fastest.', 'duration': 46.804, 'max_score': 752.819, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/AB-JUyQYxIw/pics/AB-JUyQYxIw752819.jpg'}, {'end': 882.046, 'src': 'embed', 'start': 843.164, 'weight': 5, 'content': [{'end': 852.848, 'text': "If you're looking for the absolute fastest drive that you can put into your computer, you're going to be wanting a PCI Express SSD drive.", 'start': 843.164, 'duration': 9.684}, {'end': 858.07, 'text': "that's going to be the fastest, because the material, the NAND flash memory,", 'start': 852.848, 'duration': 5.222}, {'end': 861.212, 'text': 'is going to be fastest and the connection to your motherboard is going to be fastest.', 'start': 858.07, 'duration': 3.142}, {'end': 872.357, 'text': "So you've got SATA, you've got PCIe, you also can get IDE, solid state drives and even as you know, little flash thumb USB drives.", 'start': 861.592, 'duration': 10.765}, {'end': 875.119, 'text': "Now, you may be thinking, well, that stuff's old.", 'start': 872.737, 'duration': 2.382}, {'end': 882.046, 'text': 'Why would I want an IDE drive or even be using a flash, a little thumb drive, in order to run my computer?', 'start': 875.179, 'duration': 6.867}], 'summary': 'Pcie ssd drives are the fastest due to nand flash memory and motherboard connection.', 'duration': 38.882, 'max_score': 843.164, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/AB-JUyQYxIw/pics/AB-JUyQYxIw843164.jpg'}, {'end': 1001.061, 'src': 'heatmap', 'start': 968.071, 'weight': 0.724, 'content': [{'end': 980.655, 'text': 'So that is where you have to understand other speeds, things that you have to look at with your SSD drive.', 'start': 968.071, 'duration': 12.584}, {'end': 985.837, 'text': 'So the first thing that you have to look at is IOPS, I O P S.', 'start': 981.015, 'duration': 4.822}, {'end': 989.478, 'text': 'This is input output operations per second.', 'start': 985.837, 'duration': 3.641}, {'end': 991.298, 'text': 'This is very, very important.', 'start': 989.998, 'duration': 1.3}, {'end': 1001.061, 'text': 'This is how much, how many individual transactions can be pushed and pulled from the hard drive at any one time.', 'start': 991.738, 'duration': 9.323}], 'summary': 'Understanding ssd drive speeds: key metric iops measures transactions per second.', 'duration': 32.99, 'max_score': 968.071, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/AB-JUyQYxIw/pics/AB-JUyQYxIw968071.jpg'}, {'end': 1095.536, 'src': 'heatmap', 'start': 1045.601, 'weight': 6, 'content': [{'end': 1048.462, 'text': "So that's where IOPS can be very, very, very important.", 'start': 1045.601, 'duration': 2.861}, {'end': 1053.304, 'text': 'Then you have what is called the sequential read and the sequential write speed.', 'start': 1048.922, 'duration': 4.382}, {'end': 1055.685, 'text': 'So the sequential read and the sequential write.', 'start': 1053.624, 'duration': 2.061}, {'end': 1063.467, 'text': "speed means, if you're dealing with one big file, what's the fastest that can be pulled off?", 'start': 1055.685, 'duration': 7.782}, {'end': 1066.028, 'text': 'read from the hard drive or put onto the hard drive?', 'start': 1063.467, 'duration': 2.561}, {'end': 1067.868, 'text': 'So one sequential file.', 'start': 1066.288, 'duration': 1.58}, {'end': 1072.249, 'text': "So if you're dealing with, let's say, a high def movie, That's three gigs in size.", 'start': 1067.988, 'duration': 4.261}, {'end': 1077.671, 'text': "If you're pulling that movie off or you're interacting with that movie, how fast can you interact with that movie?", 'start': 1072.509, 'duration': 5.162}, {'end': 1083.132, 'text': "The other speed that you have to look at is what's called random read and writes.", 'start': 1077.931, 'duration': 5.201}, {'end': 1090.394, 'text': "So, when you're dealing with numerous different files spread all over the hard drive or the drive,", 'start': 1083.432, 'duration': 6.962}, {'end': 1095.536, 'text': 'how quickly can it go and get all of these random files at the same time?', 'start': 1090.394, 'duration': 5.142}], 'summary': 'Iops, sequential, and random speeds are crucial for file interaction and access on hard drives.', 'duration': 71.644, 'max_score': 1045.601, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/AB-JUyQYxIw/pics/AB-JUyQYxIw1045601.jpg'}], 'start': 597.373, 'title': 'Solid state drives', 'summary': 'Covers solid state drive maintenance, emphasizing the importance of using trim over defragmentation, understanding solid-state drives, including nand flash memory type and interface, and the impact on drive speed, and explores hard drive interfaces, iops, and sequential and random read and write speeds.', 'chapters': [{'end': 705.489, 'start': 597.373, 'title': 'Solid state drive maintenance', 'summary': 'Discusses the maintenance of solid state drives, emphasizing the importance of not defragmenting them due to memory wear, but instead using trim to optimize performance, especially for modern windows operating systems.', 'duration': 108.116, 'highlights': ['Defragmenting solid state drives can cause memory wear and should be avoided, while trim is recommended for optimizing performance, particularly for modern Windows operating systems like Windows 7 and Windows 8.', 'Platter hard drives do not require worrying about defragmentation, especially due to the extended time it takes, such as five days for a three terabyte platter hard drive.', 'Trimming solid state drives is the equivalent of defragmenting for solid state drives, as it helps in optimizing performance by pulling off all the information stored in blocks and is automatically done by modern Windows operating systems like Windows 7 and Windows 8.']}, {'end': 861.212, 'start': 705.489, 'title': 'Understanding solid-state drives', 'summary': 'Explains the benefits and considerations of solid-state drives, including the impact of nand flash memory type and interface on drive speed, and recommends pci express ssd as the fastest option.', 'duration': 155.723, 'highlights': ['The importance of understanding differences in solid-state drives, as identical-looking drives can have significant variations in speed and performance.', 'The impact of NAND flash memory type on the speed of solid-state drives, with different types of memory offering varying levels of speed.', 'The significance of the interface for solid-state drives, with PCI Express SSD being recommended as the fastest option due to its NAND flash memory and connection speed.']}, {'end': 1095.536, 'start': 861.592, 'title': 'Understanding hard drive interfaces and speeds', 'summary': 'Explains the different hard drive interfaces such as sata, pcie, ide, and flash drives, and highlights the importance of iops, sequential read and write speed, and random read and write speed in determining hard drive performance.', 'duration': 233.944, 'highlights': ['The importance of IOPS in determining hard drive performance for database servers where a large number of small transactions occur per second. IOPS, or input output operations per second, is crucial for database servers handling a high volume of small transactions per second, highlighting the significance of IOPS in determining hard drive performance.', 'The significance of sequential read and write speed in handling large file transfers, such as high-definition movies. Explains the importance of sequential read and write speed for efficiently handling large file transfers, such as high-definition movies.', 'The impact of random read and write speed on accessing multiple files spread across the hard drive simultaneously. Discusses the importance of random read and write speed in accessing multiple files spread across the hard drive simultaneously, emphasizing its impact on overall performance.', 'The explanation of different hard drive interfaces like SATA, PCIe, IDE, and flash drives, emphasizing their relevance in various computing scenarios. Provides an explanation of different hard drive interfaces, highlighting their relevance in various computing scenarios, including embedded systems and specific applications.']}], 'duration': 498.163, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/AB-JUyQYxIw/pics/AB-JUyQYxIw597373.jpg', 'highlights': ['Trim is recommended for optimizing performance of solid state drives, particularly for modern Windows operating systems like Windows 7 and Windows 8.', 'Platter hard drives do not require worrying about defragmentation, especially due to the extended time it takes, such as five days for a three terabyte platter hard drive.', 'Trimming solid state drives is the equivalent of defragmenting for solid state drives, as it helps in optimizing performance by pulling off all the information stored in blocks and is automatically done by modern Windows operating systems like Windows 7 and Windows 8.', 'The importance of understanding differences in solid-state drives, as identical-looking drives can have significant variations in speed and performance.', 'The impact of NAND flash memory type on the speed of solid-state drives, with different types of memory offering varying levels of speed.', 'The significance of the interface for solid-state drives, with PCI Express SSD being recommended as the fastest option due to its NAND flash memory and connection speed.', 'The importance of IOPS in determining hard drive performance for database servers where a large number of small transactions occur per second.', 'The significance of sequential read and write speed in handling large file transfers, such as high-definition movies.', 'The impact of random read and write speed on accessing multiple files spread across the hard drive simultaneously.', 'The explanation of different hard drive interfaces like SATA, PCIe, IDE, and flash drives, emphasizing their relevance in various computing scenarios.']}, {'end': 1363.795, 'segs': [{'end': 1208.323, 'src': 'embed', 'start': 1180.747, 'weight': 0, 'content': [{'end': 1186.771, 'text': "i'm not going to cry over that, right, but if we go up here to these pci express solid-state drives,", 'start': 1180.747, 'duration': 6.024}, {'end': 1190.455, 'text': 'we can see this one up here is $2,000 and this other one is $4,000 for an 800 gig drive.', 'start': 1186.771, 'duration': 3.684}, {'end': 1200.839, 'text': "wow, that's expensive.", 'start': 1197.898, 'duration': 2.941}, {'end': 1208.323, 'text': 'but when we see that price, then we have to go and we have to start looking at the performance difference between these drives.', 'start': 1200.839, 'duration': 7.484}], 'summary': 'Pcie solid-state drives: $2,000 for one, $4,000 for 800gb. expensive!', 'duration': 27.576, 'max_score': 1180.747, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/AB-JUyQYxIw/pics/AB-JUyQYxIw1180747.jpg'}, {'end': 1307.902, 'src': 'embed', 'start': 1263.87, 'weight': 2, 'content': [{'end': 1269.813, 'text': "For this particular one, it's 1 gig per second read, up to 0.75 gigs per second write.", 'start': 1263.87, 'duration': 5.943}, {'end': 1276.958, 'text': "And if you go down here, you can see it's up to 2 gigs per second read and 1 gig per second write.", 'start': 1270.374, 'duration': 6.584}, {'end': 1284.539, 'text': 'So these are the different performance metrics that you need to be looking at the solid-state drive to determine which one you want to buy.', 'start': 1277.458, 'duration': 7.081}, {'end': 1294.381, 'text': 'Again, the difference between $104 and $2,000 or $4,000 seems like a lot, and it seems ridiculous until you start looking at these numbers.', 'start': 1284.619, 'duration': 9.762}, {'end': 1302.602, 'text': 'If you figure this SATA solid-state drive is probably going to be twice as fast as a normal hard drive,', 'start': 1294.421, 'duration': 8.181}, {'end': 1306.423, 'text': 'and then you figure this thing right here is going to be 10 times as fast as this.', 'start': 1302.602, 'duration': 3.821}, {'end': 1307.902, 'text': "You get what I'm saying?", 'start': 1307.301, 'duration': 0.601}], 'summary': 'Solid-state drives offer varying read and write speeds, up to 2gb/s read and 1gb/s write, impacting price differentials.', 'duration': 44.032, 'max_score': 1263.87, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/AB-JUyQYxIw/pics/AB-JUyQYxIw1263870.jpg'}], 'start': 1095.536, 'title': 'Solid state drives', 'summary': 'Covers key factors in purchasing solid state drives, such as iops, max sequential read/write speed, and max random read/write speed, and compares cost differences. it also discusses performance comparison, highlighting cost and performance metrics like input/output operations per second and sequential read-write speeds.', 'chapters': [{'end': 1162.957, 'start': 1095.536, 'title': 'Understanding solid state drives', 'summary': 'Discusses the key factors to consider when purchasing a solid state drive, including iops, max sequential read/write speed, and max random read/write speed, and demonstrates the cost differences between different types of drives.', 'duration': 67.421, 'highlights': ['Solid state drive considerations: The chapter emphasizes the importance of evaluating IOPS, max sequential read/write speed, and max random read/write speed when choosing a solid state drive, providing a comprehensive understanding of the essential factors to consider.', 'Cost variations: The chapter illustrates the cost differences between a PCI Express drive and a SATA 3 hard drive, highlighting the affordability and performance trade-offs associated with different types of solid state drives.']}, {'end': 1363.795, 'start': 1162.957, 'title': 'Solid-state drive performance comparison', 'summary': 'Discusses the performance comparison of solid-state drives, highlighting the significant cost difference and performance metrics, including input/output operations per second and sequential read-write speeds, to aid in making informed purchasing decisions.', 'duration': 200.838, 'highlights': ['The 800 gig PCIe solid-state drive costs $4,000 and offers 180,000 input/output operations per second, making it 13 times faster than the $104 80 gig drive. The 800 gig PCIe solid-state drive costs $4,000 and offers 180,000 input/output operations per second, making it 13 times faster than the $104 80 gig drive.', 'The 400 gig PCIe solid-state drive costs $2,000, providing 90,000 input/output operations per second, and offers a more affordable high-performance alternative. The 400 gig PCIe solid-state drive costs $2,000, providing 90,000 input/output operations per second, and offers a more affordable high-performance alternative.', 'Performance metrics reveal significant differences, with the most expensive drive offering 75,000 input/output operations per second, demonstrating the correlation between cost and performance. Performance metrics reveal significant differences, with the most expensive drive offering 75,000 input/output operations per second, demonstrating the correlation between cost and performance.']}], 'duration': 268.259, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/AB-JUyQYxIw/pics/AB-JUyQYxIw1095536.jpg', 'highlights': ['The 800 gig PCIe solid-state drive costs $4,000 and offers 180,000 input/output operations per second, making it 13 times faster than the $104 80 gig drive.', 'The 400 gig PCIe solid-state drive costs $2,000, providing 90,000 input/output operations per second, and offers a more affordable high-performance alternative.', 'Solid state drive considerations: The chapter emphasizes the importance of evaluating IOPS, max sequential read/write speed, and max random read/write speed when choosing a solid state drive, providing a comprehensive understanding of the essential factors to consider.', 'Cost variations: The chapter illustrates the cost differences between a PCI Express drive and a SATA 3 hard drive, highlighting the affordability and performance trade-offs associated with different types of solid state drives.']}, {'end': 1709.428, 'segs': [{'end': 1391.197, 'src': 'embed', 'start': 1363.795, 'weight': 2, 'content': [{'end': 1369.42, 'text': "But then when you go down, what you're thinking is that it's half the price because it's simply a smaller drive.", 'start': 1363.795, 'duration': 5.625}, {'end': 1380.109, 'text': 'But not only is it a smaller drive, again, if you look here, the actual performance is like half of what this more expensive drive is.', 'start': 1369.78, 'duration': 10.329}, {'end': 1391.197, 'text': 'So not only does the more expensive drive have more storage to it, but it also, in fact, actually has much better performance.', 'start': 1380.249, 'duration': 10.948}], 'summary': 'Smaller drive is half the price with half the performance, while more expensive drive has more storage and much better performance.', 'duration': 27.402, 'max_score': 1363.795, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/AB-JUyQYxIw/pics/AB-JUyQYxIw1363795.jpg'}, {'end': 1496.093, 'src': 'embed', 'start': 1457.359, 'weight': 0, 'content': [{'end': 1460.18, 'text': 'Once the computer is booted up, it will be really, really, really fast.', 'start': 1457.359, 'duration': 2.821}, {'end': 1465.824, 'text': "But if it has to slow down for that raid post, then it's going to slow down for a while.", 'start': 1460.621, 'duration': 5.203}, {'end': 1471.367, 'text': "So basically, you know, instead of having a 30 second boot time or whatever, you're probably going to have about a two minute boot time.", 'start': 1465.864, 'duration': 5.503}, {'end': 1482.01, 'text': "So one of the things to look at, and I think they say it here, is whether there's any hardware or software configuration for the solid state drive.", 'start': 1471.727, 'duration': 10.283}, {'end': 1487.171, 'text': 'So one of the reasons why I like the Intel drives is they make things a lot easier for you.', 'start': 1482.31, 'duration': 4.861}, {'end': 1494.193, 'text': 'So for here, for this PCI Express drive, basically you can just plug it in and it will simply work.', 'start': 1487.511, 'duration': 6.682}, {'end': 1496.093, 'text': "I don't have to worry about RAID configurations.", 'start': 1494.233, 'duration': 1.86}], 'summary': "Computer's boot time may increase from 30 sec to 2 min due to raid configurations, intel drives ease setup.", 'duration': 38.734, 'max_score': 1457.359, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/AB-JUyQYxIw/pics/AB-JUyQYxIw1457359.jpg'}, {'end': 1593.922, 'src': 'embed', 'start': 1570.296, 'weight': 3, 'content': [{'end': 1584.69, 'text': "So that's one thing I mean really and truly think about with solid state drives is that solid state drives are an inexpensive way generally to make older computers run a lot faster.", 'start': 1570.296, 'duration': 14.394}, {'end': 1591.579, 'text': 'And one of the big things to remember is for a long time with hard drives, we were always looking at space.', 'start': 1585.35, 'duration': 6.229}, {'end': 1593.922, 'text': 'We want more space, more space, more space.', 'start': 1591.919, 'duration': 2.003}], 'summary': 'Solid state drives make older computers run faster and are an inexpensive upgrade.', 'duration': 23.626, 'max_score': 1570.296, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/AB-JUyQYxIw/pics/AB-JUyQYxIw1570296.jpg'}, {'end': 1640.765, 'src': 'embed', 'start': 1613.657, 'weight': 5, 'content': [{'end': 1622.141, 'text': 'Most average office workers are actually taking up about the same amount of data storage space that they were almost 10 years ago.', 'start': 1613.657, 'duration': 8.484}, {'end': 1625.562, 'text': "They're probably taking up 20 or 30 gigs of storage.", 'start': 1622.161, 'duration': 3.401}, {'end': 1631.263, 'text': "So they may have a 500 gig hard drive in their computer, but they're not really using very much of it.", 'start': 1625.582, 'duration': 5.681}, {'end': 1640.765, 'text': 'So if you go in there and you give them a 120 gig solid state drive, it may be smaller, but it will run a lot faster.', 'start': 1631.543, 'duration': 9.222}], 'summary': 'Office workers use 20-30 gigs of storage, can benefit from 120 gig solid state drive for faster performance.', 'duration': 27.108, 'max_score': 1613.657, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/AB-JUyQYxIw/pics/AB-JUyQYxIw1613657.jpg'}, {'end': 1696.716, 'src': 'embed', 'start': 1670.351, 'weight': 4, 'content': [{'end': 1674.655, 'text': 'So they may not want to replace a thousand computers with brand new ones, but if you can go in,', 'start': 1670.351, 'duration': 4.304}, {'end': 1678.279, 'text': 'you can say I can buy solid state drives for $150 a piece and do my labor.', 'start': 1674.655, 'duration': 3.624}, {'end': 1681.241, 'text': "So, let's say a migration would be like $250 to $300 per computer.", 'start': 1678.299, 'duration': 2.942}, {'end': 1684.404, 'text': 'For $300, you can have a computer that will run faster, be more stable, use less energy, so on and so forth.', 'start': 1681.301, 'duration': 3.103}, {'end': 1696.716, 'text': 'versus buying a new computer that will cost you $1,000.', 'start': 1694.113, 'duration': 2.603}], 'summary': 'Upgrading computers with solid state drives can save $700 per computer.', 'duration': 26.365, 'max_score': 1670.351, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/AB-JUyQYxIw/pics/AB-JUyQYxIw1670351.jpg'}], 'start': 1363.795, 'title': 'Solid state drives: performance and benefits', 'summary': 'Discusses the importance of considering storage capacity and performance in purchasing solid state drives, the impact of pci express drives on boot speed, potential boot time slowdown caused by raid card detection, and the benefits of upgrading to solid-state drives in enterprise environments.', 'chapters': [{'end': 1521.103, 'start': 1363.795, 'title': 'Solid state drives: performance and considerations', 'summary': 'Discusses the importance of considering both storage capacity and performance when purchasing solid state drives, highlighting the impact of pci express drives on boot speed and the potential slowdown caused by raid card detection, which may increase boot time from 30 seconds to 2 minutes.', 'duration': 157.308, 'highlights': ['PCI Express drives impact boot speed, potentially slowing it down from 30 seconds to 2 minutes due to RAID card detection.', 'Intel drives simplify the process by not requiring RAID configurations or detection as a RAID controller, allowing for easy plug-and-play functionality.', 'The more expensive drive offers both greater storage capacity and significantly better performance compared to the cheaper, smaller drive.']}, {'end': 1709.428, 'start': 1521.603, 'title': 'Benefits of solid state drives', 'summary': "Highlights the benefits of solid-state drives, emphasizing that they can significantly improve older computers' performance at a lower cost, and discusses the cost-effectiveness of upgrading to solid-state drives in enterprise environments.", 'duration': 187.825, 'highlights': ["Solid-state drives can significantly improve older computers' performance at a lower cost, with the example of a new ASUS computer experiencing a close to double speed increase after the installation of a solid-state drive.", 'In enterprise environments, upgrading to solid-state drives at $150 per drive, with an additional $250 to $300 for migration, can provide a cost-effective alternative to replacing computers at $1,000 each.', 'In average office environments, employees typically use around 20-30 gigs of data storage space, making solid-state drives a suitable and faster alternative despite their smaller capacity.']}], 'duration': 345.633, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/AB-JUyQYxIw/pics/AB-JUyQYxIw1363795.jpg', 'highlights': ['PCI Express drives can slow down boot speed from 30 seconds to 2 minutes due to RAID card detection.', 'Intel drives simplify the process by not requiring RAID configurations or detection, allowing for easy plug-and-play functionality.', 'The more expensive drive offers greater storage capacity and significantly better performance compared to the cheaper, smaller drive.', "Solid-state drives can significantly improve older computers' performance at a lower cost, with a close to double speed increase after installation.", 'Upgrading to solid-state drives in enterprise environments at $150 per drive, with an additional $250 to $300 for migration, can provide a cost-effective alternative to replacing computers at $1,000 each.', 'In average office environments, employees typically use around 20-30 gigs of data storage space, making solid-state drives a suitable and faster alternative despite their smaller capacity.']}], 'highlights': ['Solid-state drives significantly improve computer performance, making it a highly recommended upgrade.', 'Solid-state drives outperform other types of hard drives in speed, including 5400 RPM, 7200 RPM, and 10,000 RPM drives.', 'Solid-state drives draw less electricity, leading to significant cost savings in enterprise environments.', 'Solid-state drives are very quiet and resistant to damage due to the absence of moving parts, emphasizing their durability.', 'Solid-state drives can last up to 10 years for average users, exceeding typical computer ownership periods.', 'Solid-state drives run relatively cool, making them beneficial for use in hot environments, where additional heat from computing equipment is a concern.', 'The absence of moving parts in solid-state drives eliminates concerns about vibration, contributing to their durability and reliability.', 'Memory wear in solid-state drives is addressed through special algorithms and software, leading to a longer lifespan for most users.', 'Trim is recommended for optimizing performance of solid state drives, particularly for modern Windows operating systems like Windows 7 and Windows 8.', 'The 800 gig PCIe solid-state drive costs $4,000 and offers 180,000 input/output operations per second, making it 13 times faster than the $104 80 gig drive.', 'The 400 gig PCIe solid-state drive costs $2,000, providing 90,000 input/output operations per second, and offers a more affordable high-performance alternative.', 'PCI Express drives can slow down boot speed from 30 seconds to 2 minutes due to RAID card detection.', "Solid-state drives can significantly improve older computers' performance at a lower cost, with a close to double speed increase after installation.", 'Upgrading to solid-state drives in enterprise environments at $150 per drive, with an additional $250 to $300 for migration, can provide a cost-effective alternative to replacing computers at $1,000 each.']}