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Re: suddenly slow writes on XFS Filesystem

from [Martin Steigerwald] [Permanent Link][Original]
To: xfs@xxxxxxxxxxx
Subject: Re: suddenly slow writes on XFS Filesystem
From: Martin Steigerwald <Martin@xxxxxxxxxxxx>
Date: Sun, 6 May 2012 12:33:58 +0200
Cc: Stefan Priebe <s.priebe@xxxxxxxxxxxx>
In-reply-to: <4FA63DDA.9070707@xxxxxxxxxxxx>
References: <4FA63DDA.9070707@xxxxxxxxxxxx> (sfid-20120506_121127_622020_FC89E0F4)
User-agent: KMail/1.13.7 (Linux/3.3.0-trunk-amd64; KDE/4.7.4; x86_64; ; ) 
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?

-- 
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA  B82F 991B EAAC A599 84C7
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