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

Daniel O'Connor doconnor at gsoft.com.au
Tue Jan 19 02:20:37 UTC 2010


On Tue, 19 Jan 2010, Morgan Wesström wrote:
> The disks involved don't happen to be Western Digital Green Power
> disks, do they? The Intelli-Park function in these disks are wrecking
> havoc with I/O in Linux-land at least, causing massive stalls and
> iowait through the roof during the 25-30 seconds it takes for the
> heads to unload after parking. I have two of these disks sitting on
> my desk now collecting dust...

There's this..
http://www.silentpcreview.com/Terabyte_Drive_Fix

and you can get the tool at..
http://home.arcor.de/ghostadmin/wdidle3_1_00.zip

I am planning to try this out tonight..

-- 
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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