--- On Mon, 12/24/12, Alan K Baker <[email protected]> wrote:
> SSDs can be partitioned, just like
> HDDs. The one thing you must not do with a SSD is to
> defragment it.
Two reasons why you don't defragment solid state storage of any type.
1. It doesn't actually defragment anything. All but the earliest types of solid
state storage (the 16 bit PCMCIA DRAM and SRAM cards) use "wear leveling" where
every write is semi-randomly directed to different cells. The process happens
transparently to the user. Defragmenting these types of storage can actually
make files more fragmented even though the defragger's block map would show
them defragmented.
2. Even if it did actually defragment the files, it wouldn't make a bit of
speed difference because there's no track-to track seek time and all cells of
the device have the exact same access time.
Defragmenting SSD's, completely useless to do and puts additional wear on them.
Reading data doesn't wear on an SSD because reading doesn't change the data.
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