lkml.org 
[lkml]   [2008]   [Jan]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: PROBLEM: I/O scheduler problem with an 8 SATA disks raid 5 under heavy load ?
Date
Well, I should have tried to answer my own question earlier... but  
there is still a problem.

A quick reading of Wikipedia later, I can tell the following.
First, the anticipatory scheduler seems to be the worse choice when
dealing with raid arrays.
Now, a better choice in my case could be:
- the CFQ scheduler for the array in the dom0;
- and the NOOP scheduler for the VBDs in the domUs (seems already
there by default btw)

However even with CFQ/NOOP I keep getting soft resets, only the
sata_nv SATA ports, when under load. Any thoughs ?


Thanks to all who did not flame me on this one ...;-)

GoM


\
 
 \ /
  Last update: 2008-01-07 21:25    [W:0.042 / U:1.000 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site