On Jan 4, 2010, at 10:00 AM, Thomas Burgess wrote:
I'm not 100% sure i'm going to need a separate SSD for my ZIL but if
i did want to look for one, i was wondering if anyone could suggest/
recommend a few budget options.
Start with zilstat, which will help you determine if your workload uses
the ZIL.
http://www.richardelling.com/Home/scripts-and-programs-1/zilstat
-- richard
My current hardware is something like this:
intel core2quad 9550
8 gb ddr2 800 unbuffered ECC
3 AOC-SAT2-MV8 controllers
21 7200 RPM hard drives
3 kingston snv125-s2/64 GB ssd's
I haven't decided on whether or not ot go with raidz or raidz2 yet
but if i use raidz1 it will be
4 vdevs 5 drives each 1 spare
if i go raidz 2 it will be
2 vdevs 7 drives 1 vdev 6 drives and 1 spare
I am going to use 1 ssd for L2arc and 2 for mirrored Rpool (i might
only use 20 gb each for rpool and use the other 40ish for L2arc as
well)
I was told that these ssd's are a bad choice for ZIL
When i ordered them i had originally planned to use one for zil.
I'm not looking to spend over 300 dollars if i can help it but if i
can do something cheaper i'd really be happy.
I'm really not clear on why the ssd's i ordered aren't recommended/
good for ZIL but from what i've sort of gathered, it's due to poor
write performance...
thanks
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