[DRBD-user] Zombie, Zombie?

Andreas Huck drbd at huck.it
Mon Apr 26 23:05:00 CEST 2004

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


Hi,

On Monday 26 April 2004 22:10, Andreas Semt wrote:
[...]
> Right now i had the same phenomenon: A load average of 16 (!) and cpu
> almost idle. No (read/write) access to the partition on the drbd device
> possible!
> Can i see what causes that "hang" i.e. the processes who read/write do
> that partition/drbd device?
> Can i enable a debug mode of drbd to see if drbd has something to do
> with that?
> Can I see some kernel messages regarding disc access?
>
> THANKS for help! That problem is REALLY annoying!

have you monitored the disk IO load (e.g. vmstat 1)? If it stays high
than maybe your RAID is trying to catch up - and your system waits 
for it patiently. 
Does disabling the hardware RAID cache change the behavior?

Regards,
Andreas
 




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