dmesg Error (PE-6850, RedHat 4 AS, EMC CX-300, QLA2340)

[Ahmadz S. Taneo]

Hi there;

Good day!
Am not sure but in my experience this error is cause when the CX300 fails to
scan LUN 0. This can be fixed if you re-create your initrd image for multi
LUN supports and your kernel parameter to enable "PROBE ALL LUNS"

HTH

ahmadz

-----Original Message-----
From: linux-poweredge-bounces at dell.com
[mailto:linux-poweredge-bounces at dell.com]On Behalf Of Florencio Queiroz
Sent: Friday, May 19, 2006 9:18 PM
To: linux-poweredge at dell.com
Subject: dmesg Error (PE-6850, RedHat 4 AS, EMC CX-300, QLA2340)


Dear Sirs,

I have an error at start-up of my server and CX-300.

Hardware:
Server: PE-6850
Storage: EMC CX-300
Fiber Controler: QLA2340

Software:
O.S.: RedHat 4 AS Update 3
NaviAgentCli
PowerPath 4.5.0

Everything is working but the file dmesg shows an error.

SCSI device sdc: 665156543 512-byte hdwr sectors (340560 MB)
sdc: asking for cache data failed
sdc: assuming drive cache: write through
SCSI device sdc: 665156543 512-byte hdwr sectors (340560 MB)
sdc: asking for cache data failed
sdc: assuming drive cache: write through
 sdc:<6>Device sdc not ready.
end_request: I/O error, dev sdc, sector 0
Buffer I/O error on device sdc, logical block 0
Buffer I/O error on device sdc, logical block 1
Buffer I/O error on device sdc, logical block 2
Buffer I/O error on device sdc, logical block 3
Buffer I/O error on device sdc, logical block 4
Buffer I/O error on device sdc, logical block 5
Buffer I/O error on device sdc, logical block 6
Buffer I/O error on device sdc, logical block 7
Device sdc not ready.

I think the error is occourring because the NaviAgentCli and PowerPath
is not up yet, so the server doesn't reach the storage CX-300 and the
device /dev/sdc is not ready yet.

Is it true? Any advice?

Thanks

--
Florencio Queiroz
Coordenação de T.I.
Telefone direto: 0055-85-40129131

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