2009/10/29 James C. McPherson <[email protected]>:
> Günther Thomsen wrote:
>>
>> I just installed OpenSolaris from the Live CD 06/2009 (snv_111b) on a
>> white box (Tyan S2915 MB, two dual port Qlogic 2462 FC HBA) to which I
>> connected two Engenio (LSI) 3992 RAID controller modules.
>>
>> `luxadm probe` finds and lists all configured LUs together with their
>> path specific devicename.
>>
>> Unfortunately `mpathadm list lu` does not list any LUs at all.
>>
>> My understaind is, that for x86 systems, multipathing should be
>> enabled by default, however stmsboot has a different idea:
>> # stmsboot -L
>> stmsboot: MPxIO is not enabled
>>
>> (`stmsboot -e` followed by reboot, doesn't change that.)
>>
>> I google'd quite a bit, but so far no luck. I had a look at [1], but
>> couldn't find anything too helpful there either (lots of outdated
>> documents there it seems).
>>
>> So which document should I read to learn how to enable multipathing in
>> OpenSolaris?
>
> You've come up against
> http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6813365
>
> which is fixed in build snv_113 - two builds after the version you
> have installed.
>
> Docs-wise, http://dlc.sun.com/osol/docs/content/2009.06/ points to
>
> Solaris Express SAN Configuration and Multipathing Guide
> http://docs.sun.com/doc/820-3070
>
>
Thanks for the quick response.

I did upgrade meanwhile to nv116 (113 doesn't seem to be published).
Unfortunately, that changes, but not fixes the problem.
stmsboot doesn't claim anymore that MPxIO were not enabled, but
instead now only states that no STMS devices were present:
--8<--
r...@x13:~# stmsboot -L
stmsboot: No STMS devices have been found
-->8--
and
--8<--
r...@x13:~# stmsboot -D fp -e
STMS is already enabled. No changes or reboots needed
r...@x13:~# mpathadm list initiator-port
Initiator Port:  2101001b322fe020
Initiator Port:  2100001b320fcf20
Initiator Port:  2101001b322fcf20
Initiator Port:  2100001b320fe020
r...@x13:~# mpathadm list lu
r...@x13:~# luxadm probe

Found Fibre Channel device(s):
 Node WWN:200400a0b8297a16  Device Type:Disk device
   Logical Path:/dev/rdsk/c10t1d7s2
 Node WWN:200400a0b8297a16  Device Type:Disk device
   Logical Path:/dev/rdsk/c10t1d6s2
[..some 28 more devices..]
 Node WWN:200400a0b82abfb2  Device Type:Disk device
   Logical Path:/dev/rdsk/c13t4d1s2
 Node WWN:200400a0b82abfb2  Device Type:Disk device
   Logical Path:/dev/rdsk/c13t4d0s2
-->8--

So how do I get from recognized FC HBA and LUs to multipath'ed
devices? That doesn't seem described in the documents listed above
(there mpathadm seemingly magically lists the LUs once MPxIO is
enabled). I must be missing something.

Guenther
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