On 4/8/2010 8:36 AM, Norbert Schulze wrote:
> Hello Gerald,
>
>
>> Is this running in a VM? I often see high CPU wait times when doing disk
>> I/O in a VM.
>
> No, it is a normal system with a hardware raid-controller.
>

Raid5?  That has horrible write performance, especially with small 
writes like the directory/inode/freespace updates for file deletions.
If you aren't pressed for disk space you might improve things by 
increasing $Conf{BackupPCNightlyPeriod} so it only traverses part of the 
pool each night.

-- 
  Les Mikesell
    [email protected]

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