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What RAID backend are you using? If it's RAID 5, then I would
search the web on how to lower iowait for that card.<br>
<br>
The 3ware (LSI) 9550SX card is notorious for high IOWAIT when using
RAID 5.<br>
<br>
On 9/27/2010 2:37 PM, Christoffer Andersson wrote:
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<font face="Helvetica, Arial, sans-serif">I have big problems with
high IO; gfs2_logd and pdflush uses 99% IO every 2 minutes, and
this makes everything freeze for ~15 seconds.<br>
Both servers are in the same hall and connected via 100Mbit. <br>
<br>
I'm attaching a screenshot of 'iotop' and my drbd.conf<br>
<br>
Anybody got ideas what might be wrong?<br>
<br>
Best regards<br>
Christoffer<br>
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