[CentOS] CentOS 5.3 host not seeing storage device
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Thu Feb 18 09:35:44 UTC 2010
> Maybe one of you has experienced something like this before.
> I have a host running CentOS5.3, x86_64 version with the standard
> qla2xxx driver. Both ports are recognized and show output in dmesg
> but they never find my storage device:
> qla2xxx 0000:07:00.1: LIP reset occured (f700).
> qla2xxx 0000:07:00.1: LIP occured (f700).
> qla2xxx 0000:07:00.1: LIP reset occured (f7f7).
> qla2xxx 0000:07:00.0: LOOP UP detected (4 Gbps).
> qla2xxx 0000:07:00.0: SNS scan failed -- assuming zero-entry result...
> qla2xxx 0000:07:00.1: LOOP UP detected (4 Gbps).
> qla2xxx 0000:07:00.1: SNS scan failed -- assuming zero-entry result...
> The storage device is a virtual tape library on an HP d2d server. On
> the storage device I have configured the virtual tape drive and
> controller. I've also added the WWNs from the server and storage into
> a zone on our fiber switch, and made the zone config live.
> Anyone have some suggestions where I can start troubleshooting this?
Did you check the output of "/proc/scsi/scsi"?
I would do a SCSI rescan using
echo "- - -" > /sys/class/scsi_host/hostX/scan
where "hostX" is the matching SCSI host.
To configure (i.e. speed and connection type) and control the QLogic FC
HBA I recommend to install the QLogic SANsurfer CLI.
Do you use port zoning or WWN zoning? The switch sees the attached WWNs of
both the server and the tape library?
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