Symbiote_IV :
Oh i know its not just start up time. But thats what a lot of people talk about.
Indeed you're right, they do, which is a shame as it's just one small part of a whole raft of benefits.
Hmm, maybe toms should do a more up to date direct comparison piece about SSDs, show how
they differ for normal use to a rust spinner, both a cheapo model like the eco green types and the
supposedly good ones like the WD Black, and throw in the best possible mechanical HDD one can
get, the modern equivalent of the 15K SAS I used way back. Mechanical drives offer reasonably
decent sequential I/O, so fine for storing movies (the main thing I'd use them for these days),
but they rapidly bog down for anything else (copying a mixed load from one driver to another shows
this very clearly, as I found when backing up my main 100GB installation sources archive from an
SSD to a 1TB SATA, ie. enough smaller files in the archive to slow the mechanical down severely).
However, that's just one example. I've run my own tests and obtained some limited typical data,
but it was focused specifically on showing how SSDs behaved with older SATA2. I have plenty of
other SSD models to test, and relevant mbds too, but not the time atm.
Any such comparison piece should also show how the older SSDs, though impressive for their
time, are nowhere near as good as modern products. I recently obtained a 64GB OCZ Onyx
which is downright slow compared to modern SSDs, and can easily be beaten for sequential
I/O by mechanical drives (scores just 171 with AS-SSD), and indeed the venerable Samsung F1
from the same era (first decent SATA I bought) is better for sequential I/O. I strongly recommend
reading some older SSD reviews to see just how far the technology has come in only a few short
years (hmm, couldn't find a toms review for the Onyx):
http://www.xbitlabs.com/articles/storage/display/ocz-ssd-roundup2.html
http://www.anandtech.com/show/3756/2010-value-ssd-100-roundup-kingston-and-ocz-take-on-intel
http://www.techspot.com/review/313-budget-ssd-roundup/page7.html
The techspot link above is particularly interesting. I think we've forgotten how back then numerous
SSDs didn't yet have the sequential I/O strength they have today, even though the random I/O
and access time advantages were already very clear. Reading forum comments from 5 years ago,
it's interesting to see just how much debate there was about the need for larger capacities, the
relevance of TRIM, etc.
Ian.
PS. One down side of SSDs not often mentioned is the issue of what happens when a unit fails.
To a fair extrent, rust spinners often begin to die in a manner which provides a degree of warning,
eg. bad blocks, giving time for corrective action. An SSD failure often means total device loss,
or at least a more complex & perhaps costly recovery process if one really does have to retrieve
data. Hence, these days with the prevalence of SSDs, having a sensible backup system is very
important.