But don't forget that "The unknown is what makes life interesting" :)
Bruno Cindy Swearingen wrote: > Hi Mike, > > In theory, this should work, but I don't have an experience with this > particular software, maybe someone else does. > > One way to determine if it might work is by using use the zdb -l command > on each device in the pool and check for a populated devid= string. If > the devid exists, then ZFS should be able to handle the device change. > On a ctd device this syntax looks like this, for example: > > # zdb -l /dev/dsk/c1t1d0s0 > > I would also recommend exporting the pool first, but I again I have no > experience with this software. > > The whole topic of moving or changing devices under live pools, > particularly on non-Sun gear, makes me queasy as does the fact that my > teenage son will be driving soon so maybe my queasiness is related to > my general fear of the unknown. > > Cindy > > > On 12/08/09 10:15, 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: >> >> ###################################################### >> # zpool status -v >> pool: myzfs >> state: ONLINE >> scrub: none requested >> config: >> >> NAME STATE READ WRITE CKSUM >> myzfs ONLINE 0 0 0 >> 1234567890 ONLINE 0 0 0 >> 1234567891 ONLINE 0 0 0 >> ####################################################### >> >> So how would I change the path after I install PowerPath to use the >> multi-path? So 1234567890 would be equal to /dev/dsk/emcpower1 and >> 1234567891 would be equal to /dev/dsk/emcpower2. >> >> In the end it would look like: >> >> ###################################################### >> # zpool status -v >> pool: myzfs >> state: ONLINE >> scrub: none requested >> config: >> >> NAME STATE READ WRITE CKSUM >> myzfs ONLINE 0 0 0 >> emcpower1 ONLINE 0 0 0 >> emcpower1 ONLINE 0 0 0 >> ####################################################### >> >> 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... > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss >
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