>>>>> "en" == Eff Norwood <sm...@jsvp.com> writes:
en> We also tried SSDs as the ZIL which worked ok until they got
en> full, then performance tanked. As I have posted before, SSDs
en> as your ZIL - don't do it!
yeah, iirc the thread went back and forth between you and I for a few
days, something like this,
you: SSD's work fine at first, then slow down, see this anandtech
article. We got bit by this.
me: That article is two years old. Read this other article which is
one year old and explains the problem is fixed if you buy current gen2
intel or sandforce-based SSD.
you: Well absent test results from you I think we will just have to
continue believing that all SSD's gradually slow down like I
said, though I would love to be proved wrong.
me: You haven't provided any test results yourself nor even said what
drive you're using. We've both just cited anandtech, and my
citation's newer than yours.
you: I welcome further tests that prove the DDRDrive is not the only
suitable ZIL, but absent these tests we have to assume I'm right
that it is.
silly!
slowdowns with age:
http://www.pcper.com/article.php?aid=669
http://www.anandtech.com/show/2738/15
slowdowns fixed:
http://www.anandtech.com/show/2899/8
``With the X25-M G2 Intel managed to virtually eliminate the
random-write performance penalty on a sequentially filled
drive. In other words, if you used an X25-M G2 as a normal desktop
drive, 4KB random write performance wouldnC"BB
http://www.anandtech.com/show/2738/25 t really degrade over
time. Even without TRIM.''
note this is not advice to buy sandforce for slog because I don't
know if anyone's tested it respects flush-cache commands and suspect
it may drop them.
sumary: There's probably been major, documented shifts in the industry
between when you tested and now, but no one knows because you don't
even tell what you tested or how---you just spread FUD and flog the
DDRDrive and then say ``do research to prove me wrong or else my hazy
statement stands.'' bad science.
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