[Linux-PowerEdge] Rejecting I/O to offline device

Eberhard Moenkeberg emoenke at gwdg.de
Fri Jul 5 10:12:06 CDT 2013


Hi,

On Fri, 5 Jul 2013, Audet, Martin (RTFT) wrote:

> We have many boxes PE R710 that experiencing this issue.
> The server stop responding and the error message "sd 0:2:0:0 Rejecting 
> I/O to offline device" appears in a console.
> These servers run XenServer 5.6.
> The Bios version:       6.3.0
> Perc H700i fw version:  12.3.0-0032

I had seen that in a R620 with H700 raid controller and 3 raid1 pairs of 
OCZ Vertex SSDs.

When I did a througput test on one raid set and hit about 1 gbyte/sec, the 
other two raid sets went offline.

I guess the PCI-e througput is the bottleneck.


Viele Gruesse
Eberhard Moenkeberg (emoenke at gwdg.de, em at kki.org)

-- 
Eberhard Moenkeberg
Arbeitsgruppe IT-Infrastruktur
E-Mail: emoenke at gwdg.de      Tel.: +49 (0)551 201-1551
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