zfs should work fine with disks under the control of solaris mpxio.
i don't know about any of the other multipathing solutions.

if you're trying to use a device that's controlled by another
multipathing solution, you might want to try specifying the full
path to the device, ex:
        zpool create -f extdisk /dev/foo2/vpath1c

ed

On Wed, Jul 26, 2006 at 09:47:03AM -0600, David Curtis wrote:
> Please reply to [EMAIL PROTECTED]
>
> ******** Background / configuration **************
>
> zpool will not create a storage pool on fibre channel storage.  I'm
> attached to an IBM SVC using the IBMsdd driver.  I have no problem using
> SVM metadevices and UFS on these devices.
>
>   List steps to reproduce the problem(if applicable):
> Build Solaris 10 Update 2 server
> Attach to an external storage array via IBM SVC
> Load lpfc driver (6.02h)
> Load IBMsdd software (1.6.1.0-2)
> Attempt to use zpool create to make a storage pool:
> # zpool create -f extdisk vpath1c
> internal error: unexpected error 22 at line 446 of ../common/libzfs_pool.c
>
> ********* reply to customer    ********************
>
> It looks like you have an additional unwanted software layer between
> Solaris and the disk hardware. Currently ZFS needs to access the
> physical device to work correctly. Something like:
>
> # zpool create -f extdisk c5t0d0 c5t1d0 ......
>
> Let me know if this works for you.
>
> ************* follow-up question from customer ************
>
> Yes, using the c#t#d# disks work, but anyone using fibre-channel storage
> on somethink like IBM Shark or EMC Clariion will want multiple paths to
> disk using either IBMsdd, EMCpower or Solaris native MPIO.  Does ZFS
> work with any of these fibre channel multipathing drivers?
>
>
> Thanks for any assistance you can provide.
> --
>
> David Curtis - TSE    Sun Microsystems
> 303-272-6628          Enterprise Services
> [EMAIL PROTECTED]     OS / Installation Support
> Monday to Friday      9:00 AM to 6:00 PM Mountain
>
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