Checkdisk on SSD

[Submarine]

Can you run checkdisk on a SSD? Any restrictions?

 

[Brink]

Hello Submarine,

Yes, it's safe to run CHKDSK on a SSD drive. You just do not want to defrag a SSD though.

Hope this helps,
Shawn

 

[Submarine]

Thanks!

 

[Brink]

You're welcome.

 

[Captain Halibut]

I'm curious. I've a first-gen eeePC [701, 4gB soldered SSD XP SP3] and
a defrag with Defraggler speeds the machine up no end, despite having
read it's not necessary. But is it actually inadvisable?

 

[Brink]

Hello Captain,

A SSD has a set amount of writes (varies per SSD) to a block of memory before it no longer can be written to that block and eventually to all blocks. Since a defrag does a lot of writing to the SSD, it will reduce the number writes you have left and reduce the SSD's lifespan a bit each time you do a defrag. You can read more details about it in the link below though.

http://www.sevenforums.com/hardware-devices/6203-think-you-know-ssds-think-again.html

Hope this helps,
Shawn

 

[whs]

In addition, there is no purpose for defrags on SSDs. For a spinning disk, the defrag "compacts" the data on the disk and the seek times get reduced because of reduced rotational delay and arm movement. But on an SSD, the seek time to every cell is the same and there is nothing to be gained with defrag.

 

[Captain Halibut]

Thanks Brink & whs. Was vaguely aware of the likely damage to the blocks,
and that there is no advantage to rearranging data as with a physical platter,
but nonetheless it seems a damn sight faster afterwards. Machines huh?