Subject: Qlogic failover with Hitachi 9960 2007-08-27 - By -not available-
Back
Hi all
I've googled extensively for the past couple of days and have logged a
service request with RH support but no joy.
We have a Hitachi 9960 on which 3 LUNs have been allocated to my server.
My server running RHEL3u9 (x86_64), has two qla2460s and both see the
LUNs.
---
# grep \( /proc/scsi/qla2300/?
/proc/scsi/qla2300/1:Total number of IOCBs (used/max) = (0/0)
/proc/scsi/qla2300/1:Commands retried with dropped frame(s) = 0
/proc/scsi/qla2300/1:(Id:Lun) * - indicates lun is not registered with
the OS.
/proc/scsi/qla2300/1:( 0: 0): Total reqs 1, Pending reqs 0, flags 0x2*,
0:0:81,
/proc/scsi/qla2300/1:( 0: 7): Total reqs 211, Pending reqs 0, flags 0x2,
0:0:81,
/proc/scsi/qla2300/1:( 0: 8): Total reqs 214, Pending reqs 0, flags 0x2,
0:0:81,
/proc/scsi/qla2300/1:( 0:15): Total reqs 211, Pending reqs 0, flags 0x2,
0:0:81,
/proc/scsi/qla2300/2:Total number of IOCBs (used/max) = (0/0)
/proc/scsi/qla2300/2:Commands retried with dropped frame(s) = 0
/proc/scsi/qla2300/2:(Id:Lun) * - indicates lun is not registered with
the OS.
/proc/scsi/qla2300/2:( 0: 0): Total reqs 1, Pending reqs 0, flags 0x2*,
1:0:81,
/proc/scsi/qla2300/2:( 0: 7): Total reqs 246, Pending reqs 0, flags 0x2,
1:0:81,
/proc/scsi/qla2300/2:( 0: 8): Total reqs 186, Pending reqs 0, flags 0x2,
1:0:81,
/proc/scsi/qla2300/2:( 0:15): Total reqs 189, Pending reqs 0, flags 0x2,
1:0:81,
# grep -- -fo /proc/scsi/qla2300/?
/proc/scsi/qla2300/1: Firmware version: 4.00.26, Driver version
7.07.06-fo
/proc/scsi/qla2300/2: Firmware version: 4.00.26, Driver version
7.07.06-fo
# sg_map | grep sd
/dev/sg0 /dev/sda
/dev/sg1 /dev/sdb
/dev/sg2 /dev/sdc
/dev/sg3 /dev/sdd
/dev/sg4 /dev/sde
/dev/sg5 /dev/sdf
/dev/sg6 /dev/sdg
/dev/sg7 /dev/sdh
---
My problem is I'm unsure how to refer to the LUNs. The LUNs are on:
- /dev/sdb and /dev/sde
- /dev/sdc and /dev/sdf
- /dev/sdd and /dev/sdg
I need to put all the LUNs in a VG. Do I put all the paths in the VG?
How does failover/failback occur?
On another note, the CD drive (currently /dev/sdh) sometimes comes up as
/dev/sdb and sometimes /dev/sde. How do I make it consistant? I figure
I need to use devlabel but I'm not sure exactly what arguments to pass
it.
TIA
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