From: Moore, Joe (jmoore@ugs.com)
Date: Wed Jun 21 2006 - 13:50:51 EDT
I'm trying to set up Sun Cluster 3.1 (08/05) on servers that are
connected to an EMC Clariion (CX500) array. I have Powerpath version
4.4 installed.
The cluster is used to provide HA for our Solaris 10 zones. The zone
root and all other zone filesystems reside on the Clariion, and I can't
figure out how to define the cluster resources so that they're
acceptable to SC (and handle path failures)
A LUN is available from the Clariion as HOST LUN 21...
/dev/rdsk/c2t5006016130202E48d21 and /dev/rdsk/c2t5006016930202E48d21.
EMC Powerpath configures that LUN as /dev/dsk/emcpower21a. scdidadm
shows it as /dev/did/rdsk/d30 (with one path to each of the
/dev/rdsk/c2t... devices for each cluster node -- 2 paths per node), and
there are entries in /global/dev/dsk/d30s0 for this disk. All the paths
are the same on all cluster nodes.
Can anyone tell me how a SUNW.HAStoragePlus resource is supposed to be
defined in this case?
I can't point it at /dev/dsk/c2t... (no Clariion failover, the resource
would be accessed over the cluster interconnect if the resource was
needed elsewhere, and VALIDATE fails with an "Invalid global device path
... detected"
I can't point it at /dev/dsk/emcpower21a (resource couldn't be brought
online on any other node, also the VALIDATE step fails with the same
error.
I can't point it at /dev/did/dsk/d30s0 (in theory this should allow
clariion failover, but in practice it doesn't... the VALIDATE step fails
anyway.)
I have to point at /dev/global/dsk/d30s0 for it to pass VALIDATE, but in
testing, that doesn't allow clariion failover: when I remove access to
one of the SPs, i/o on the device doesn't fail over to the working SP
and the zone hangs.
There is no documentation that I can find, either from Sun or from EMC
that describes how it should look.
Can anyone help?
Thanks,
--Joe
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