immense delayed write to file system (ZFS and UFS2), performance issues

Daniel O'Connor doconnor at gsoft.com.au
Tue Jan 19 03:34:05 UTC 2010


On Tue, 19 Jan 2010, Garrett Moore wrote:
> The drives being discussed in my related thread (regarding poor
> performance) are all WD Green drives. I have used wdidle3 to set all
> of my drive timeouts to 5 minutes. I'll see what sort of difference
> this makes for performance.
>
> Even if it makes no difference to performance, thank you for pointing
> it out -- my drives have less than 2,000 hours on them and were all
> over 90,000 load cycles due to this moronic factory setting. Since
> changing the timeout, they haven't parked (which is what I would
> expect).

Mine had 65k or so, except one which only had 66.. Very odd!

-- 
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
  -- Andrew Tanenbaum
GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
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