There are two common SSD form factors and interfaces. To be clear, I like these pages for their excellent explanations and descriptions I have no relationship of any kind with Crucial or Intel other than to purchase at retail some of their products for my personal use. There are several interesting and informative articles about SSDs at the Crucial and Intel web sites. The degradation can result in data loss after about a year of being stored without power, making them unsuitable for off-line archival storage. Another issue with SSDs is that their memory cells can "leak" and degrade over time if power isn't maintained. Currently, that capacity is about 14 TB for HDDs and 4 TB for SSDs. The primary drawbacks to SSD devices are that they are more expensive for a given storage size than HDDs, and HDDs have a greater maximum capacity than SSDs. In many respects, SSDs are like USB thumb drives, which are also solid-state devices and essentially use the same flash memory storage technology. SDDs use less energy, are smaller and weigh less than HDDs, and are less likely to be damaged if dropped. There are other non-performance-related advantages for SSDs over HDDs. SSDs are typically 10x faster when reading data and 20x faster when writing. These seek and rotational latencies are the mechanical factors that slow access to the data. They do not need to wait for mechanical arms to seek to the track on which the data is stored and then wait for the sector containing the data to rotate under the read/write heads to be read. Due to their solid-state nature, SSDs can access any location in their memory at the same speed. The second advantage of SSDs is that they are fast. I have had many HDDs fail over the years I use them hard, and the mechanical components wear out over time. The functional advantages of SSD over HDD are twofold, and both are due to the solid-state nature of the SSD.įirst, SSDs have no moving parts to wear out or break. Both drive technologies store the operating system, application programs, and your data so that they can be moved into main memory (RAM) for use. The primary function of both HDD and SSD devices is to store data in a non-volatile medium so that it is not lost when the power is turned off. And I have found places to use most of those older bits, including those old hard drives. I also try to keep computers and components out of the recycling process so long as they are useful. I just know that someday I will be able to use them. I hate to discard perfectly usable computer parts. The rest just sit in a container waiting to be used. I end up with plenty of old hard drives, some of which I use to keep some of those older systems going for a while longer. I keep any usable parts, including hard drives. At that point, I take the remaining unusable components of the defunct system to the local electronics recycling center. I use those older systems until the motherboard or something else irreplaceable dies. Few people are currently discarding systems with SDDs, which I expect will not change for a while. But I have this problem: people gift me their old computers, and I dismantle them for parts, including hard drives. I like my computers with fast processors, lots of CPUs, and large amounts of RAM. All of my other physical hosts boot more slowly from their spinning disk hard drives.ĭon't get me wrong. Whenever I boot my laptop – which is not frequently because I usually let it run 24x7 for various reasons – it surprises me how quickly I get to a login prompt.
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I have been, too, actually, but only because the System76 Oryx Pro laptop I purchased a couple of years ago came with SSDs as the primary storage option. I know that many of you have been using solid-state disk ( SSD) devices to replace the venerable hard drive ( HDDs) with physical spinning disks for a long time now.
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