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Re: Device reordering on iscsi restart



On Fri, 15 May 2009, Mike Christie wrote:

>> others mentioned it. RHEL5 seems to have a rich set in /dev/disk/by-path/ 
>> showing up in udevinfo, but RHEL4 does not - only some entries for 
>> direct-connected disks. "udevinfo -q all -p /block/sdc/sdc1" on RHEL4 shows 
>> only the basic mode and owner info, not the extended and symlink info. So I 
>> guess it's disk labels for RHEL4
>
> You should be able to do this in RHEL 4. Checking out:
> http://kbase.redhat.com/faq/docs/DOC-4202
> http://kbase.redhat.com/faq/docs/DOC-3673

Thanks.
However, that article specifies RHEL 4.7. We have RHEL 4.5 and 4.6 (yes, 
we could upgrade, most probably to RHEL 5.3 ...)

Setting the -g option in scsi_id creates entries in /dev/disk/by-id/ but 
they are not disambiguated in RHEL4.6. I still need the iptables kludge.

> iscsiadm -m session -P 3 in newer tools and iscsiadm -m session -i in older 
> ones.

Thanks!  "iscsiadm -m session -i" works in my RHEL5.2 but is 
undocumented; "iscsiadm -m session -P 3" works also (to show /dev/sdx)

regards, Andrew

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