Re: suddenly slow writes on XFS Filesystem

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Am 06.05.2012 23:43, schrieb Martin Steigerwald:
> Am Sonntag, 6. Mai 2012 schrieb Stan Hoeppner:
>> On 5/6/2012 5:33 AM, Martin Steigerwald wrote:
>>> Am Sonntag, 6. Mai 2012 schrieb Stefan Priebe:
>>>> It is a raid 10 of 20 SATA Disks and i can only write to them with
>>>> about  700kb/s while doing random i/o. I tried vanilla Kernel 3.0.30
>>>> and 3.3.4 - no difference. Writing to another partition on another
>>>> xfs array works fine.
>>>
>>> Additionally what RAID is this? SoftRAID or some - which one? -
>>> hardware RAID controller? And what disks are used, whats the rpm of
>>> these?
It is a HW Adaptec 5805 Controller with 20x 7200rpm SATA Disks.

> Can free space be defragmented in XFS? xfs_fsr only tries to defragment 
> files as far as I know.
That is a good question.

Stefan

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