[ltp] Re: solid state drive?

km linux-thinkpad@linux-thinkpad.org
Mon, 16 Feb 2009 14:21:50 +0100


On 16/02, Volker Krueger wrote:
> Dear all,
> 
> I am interested in your comments on solid state drives?
> Does any one have experiences with cheaper non-lenovo drives?
> what is the speed and wattage? Can one actually save battery time with them?
> 
> any info welcome :-))
> 
> best,
> Volker
> 
> 
> -- 
> The linux-thinkpad mailing list home page is at:
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I believe the general understanding is that you dont save power with SSD's.
SSDs use about the same amount of power as a hard drive.

See this article on toms hardware for power comparisons:
http://www.tomshardware.com/reviews/ssd-hard-drive,1968.html

The wins on the other hand is:
 - speed (my x300 boots XP to desktop in 7 seconds and ubuntu in 15)
 - robustness (no moving parts)
 - sound (no moving parts)

My only experience is with the samsung SSD in my x300. The best way I
have of describing it is that the drive is no longer a factor for
anything in the laptop. Everything is either CPU, network or memory bound.
Disk I/O is never the issue as I see sustained write around 90mb/s, reads
at 100mb/s and nonexistant latency.

One thing to have in mind is that SSDs are still new and theres alot of
things happening so what is true today will probably not be true in six
months. And try to stay clear of MLC SSDs.


-km