> On Tue, March 23, 2010 12:00, Ray Van Dolson wrote: > ZFS recognizes disks based on various ZFS special > blocks written to them. > It also keeps a cache file on where things have been > lately. If you > export a ZFS pool, swap the physical drives around, > and import it, > everything should be fine. If you don't export > first, you may have to > give it a bit of help. And there are pathological > cases where for example > you don't have a link in the /dev/dsk directory which > can cause a default > import to not find all the pieces of a pool.
Indeed. Before I wised up and bought an HBA for my RAIDZ2 array instead of using randomly-assorted SATA controllers, I tried rearranging some disks without exporting the pool first. I almost had a heart attack when the system came up reporting "corrupted data" on the drives that had been switched. As it turned out, I just needed to export and re-import the pool, and it was fine after that. Needless to say, when the HBA went in, I made sure to export the pool FIRST. -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
