linux-kernel - Re: dell poweredge 2400 harddisks going into offline mode when heavy I/O occurs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <45231A63.3020102@tmr.com>
Date:	Tue, 03 Oct 2006 22:20:19 -0400
From:	Bill Davidsen <davidsen@....com>
To:	Matt Domsch <Matt_Domsch@...l.com>
CC:	linux-kernel@...r.kernel.org
Subject: Re: dell poweredge 2400 harddisks going into offline mode when heavy
 I/O occurs

Matt Domsch wrote:
> On Thu, Sep 28, 2006 at 04:19:23PM +0200, Folkert van Heusden wrote:
>> Hi,
>>
>> I have a Dell Poweredge 2400 with 6 scsi harddisks in (hw-) raid 5.
>> 512MB ram, 2x P3.
>> When heavy disk i/o occurs, the system puts the harddisks into offline
>> mode causing the filesystems to be put in readonly. The current kernel
>> is 2.6.8, with 2.4.27 this did not occure. Googling did not help. The
>> disks all have green lights (there's a special led for each to indicate
>> errors - that one is off).
> 
> [snip]
>> Sep 28 16:05:12 kasparov kernel: aacraid: Host adapter reset request. SCSI hang ?
>> Sep 28 16:06:12 kasparov kernel: aacraid: SCSI bus appears hung
>> Sep 28 16:06:12 kasparov kernel: scsi: Device offlined - not ready after error recovery: host 1 channel 0 id 0 lun 0
> 
> Yes, this is familiar. See:
> 
> http://lists.us.dell.com/pipermail/linux-poweredge/2004-May/014694.html
> 
> In addition, please consider mounting your file systems with
> 'noatime', as this reduces the number of small writes being sent to
> the disks.
> 
> 2.6.x kernels have the ability to swamp the RAID controller firmware
> with requests where 2.4.x kernels couldn't so easily.

Can you configure the controller as JBOD and use software raid. Would 
the controller keep up with that?
> 
> Thanks,
> Matt
> 


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/