Thanks for the info Alexander... I will test this out. I'm just wondering what it's going to see after I install Power Path. Since each drive will have 4 paths, plus the Power Path... after doing a "zfs import" how will I force it to use a specific path? Thanks again! Good to know that this can be done.
On Wed, Dec 9, 2009 at 5:16 AM, Alexander J. Maidak <ajmai...@mchsi.com>wrote: > On Tue, 2009-12-08 at 09:15 -0800, Mike wrote: > > I had a system that I was testing zfs on using EMC Luns to create a > striped zpool without using the multi-pathing software PowerPath. Of coarse > a storage emergency came up so I lent this storage out for temp storage and > we're still using. I'd like to add PowerPath to take advanage of the > multi-pathing in case I lose and SFP (or entire switch for that matter) but > I'm not exactly sure what I can do. > > > > So my zpool currently looks like: > > > ... > > > > I would image (because I haven't tried it yet) that it would require > using zfs export/import in order to make this happen. Has anyone tried > this? Am I fubar? Thanks for the help! Great forum btw... > > When I've done this in the past its been a pool export, reconfigure > storage, pool import procedure. > > In my dark PowerPath days I recall PowerPath couldn't handle the using > the emcpower# disk name. You had to format the emcpower device and > create you're zpool on the "emcpower1a" slice. This may have changed in > the newer versions of PowerPath (the last version I ran was 5.0.0_b141). > > I've since switched to using Sun MPxIO for multipathing. Its worked > fine so far its certain to support you're ZFS config. Just export > you're pool, run the "stmsboot -e" commmand, reboot, and re-import > you're pool. > > -Alex > > > > > >
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