Re: RAID1 over aoe devices freezes cp-procs on failure of one aoe device

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On Thu, Jun 05, 2008 at 04:25:02PM +0200, Lars T??uber wrote:
> Hi there.
> 
> please let me explain a problem i struggle with here with a self build SAN.
> 
> If of one of two AoE-devices of a RAID1 fails any process copying to the mounted RAID freezes.

The md driver might just be waiting for the I/O to fail or succeed
while the AoE command times out.  You can adjust aoe_deadsecs if you
like, so that I/O to an unavailable component is failed more quickly.

There is an aoetools-discuss mailing list at the sourceforge
"aoetools" project.  There you can talk to other people doing Linux
Software RAID 1 over AoE targets.

-- 
  Ed L Cashin <ecashin@xxxxxxxxxx>
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