[wellylug] High load averages but no apparent cause

[Daniel Pittman]

David Harrison <david.harrison at stress-free.co.nz> writes:

> No, but now that you say that if the system is unable to write to the RAID5
> which contains the log file would this even happen?
>
> e.g. /var is the problematic RAID5 partition and when it locks up it takes
> out one or more of the physical disks.
>
> An interesting observation is that when the problem occurs it either locks
> up both sda & sdb, or sdc by itself.  I am guessing that this is because sda
> & sdb are on the same channel, so either the channel itself is going or one
> of the disks is which is taking the other with it.

That is extremely unlikely: SATA disks don't have the older PATA "shared
channel" issue, and as far as I can tell these are SATA disks, right?

        Daniel

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