![]() You actually can suffer reduced performance from fragmentation on SSD. ![]() Of course in this case, “fragmented” means from the OS’ point of view irrespective of the physical layout. Using a more tolerant filesystem like NTFS instead of FAT32 helps to some degree, but the fact is that a fragmented file is much harder to recover (if not flat out impossible) than one that is not fragmented. While it’s true that SSDs employ wear-leveling and their firmware manages sector mapping, that does not negate the fact that SSDs, like all storage devices that allow modification, do become fragmented which is death when you need to recover lost files. ![]() Aside from the fact that they wear out, there is a critical issue to be aware of. SSDs : 5 (less power, less heat, faster, no fragmentation, smaller)Īll this does not however mean that SSDs are the ideal, care-free storage solution. This is yet another benefit of SSDs over spinning HDs: fragmentation is no longer an issue. Robers gave a good explanation about how SSDs are different from traditional spinning disks and that the sectors on an SSD do not reflect the physical layout. Also, you don’t want to defragment SDDs because not only does it defeat the purpose of spreading the data around, but all the extra writes wear it out faster. As a result, SSDs purposely fragment data to spread it around the whole drive. However, as sblair pointed out, it’s not actually a problem with SSDs like it is with HDs because there is no head to physically move around the disk to collect data, so there is no performance penalty.Īlso, as Marcin and Molly explained, SSDs need to scatter data throughout the whole drive to prevent the beginning of it from getting worn out while the rest of it remains unused. There’s really no way around it (short of writing everything once to an empty drive then not writing anything ever again), not even with a better file-system. ![]() This is not a problem with a fresh, clean drive, but after a while, as the drive fills up and files are deleted, new files eventually begin to get written into whatever blocks are available which may not always be big enough for the whole file. Fragmentation is simply when files are written to non-contiguous blocks. ![]()
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