http://blogs.sun.com/constantin/entry/csi_munich_how_to_save
2010/6/15 Scott Squires <ssqui...@gmail.com> > Hello All, > > I've migrated a JBOD of 16 drives from one server to another. I did a > zpool export from the old system and a zpool import to the new system. One > thing I did notice is since the drives are on a different controller card, > the naming is different (as expected) but the order is also different. I > setup the drives as passthrough on the controller card and went through each > drive incrementally. I assumed the zpool import would have listed the > drives in the order of c10t2d0, d1, d2, ... c10t3d7. As shown below the > order the drives were imported is c10t2d0, d2, d3, d1, c10t3d0 through d7. > > __________________________________________________ > |Original zpool setup on old server: > | > |zpool status backup > | pool: backup > | state: ONLINE > |config: > | NAME STATE READ WRITE CKSUM > | backup ONLINE 0 0 0 > | raidz2 ONLINE 0 0 0 > | c7t1d0 ONLINE 0 0 0 > | c7t2d0 ONLINE 0 0 0 > | c7t3d0 ONLINE 0 0 0 > | c7t4d0 ONLINE 0 0 0 > | c7t5d0 ONLINE 0 0 0 > | c7t6d0 ONLINE 0 0 0 > | c7t7d0 ONLINE 0 0 0 > | c7t8d0 ONLINE 0 0 0 > | c7t9d0 ONLINE 0 0 0 > | c7t10d0 ONLINE 0 0 0 > | c7t11d0 ONLINE 0 0 0 > | c7t12d0 ONLINE 0 0 0 > | c7t13d0 ONLINE 0 0 0 > | c7t14d0 ONLINE 0 0 0 > | c7t15d0 ONLINE 0 0 0 > | spares > | c7t16d0 AVAIL > |_________________________________________________ > > __________________________________________________ > |Imported zpool on new server: > | > |zpool status backup > | pool: backup > | state: ONLINE > |config: > | NAME STATE READ WRITE CKSUM > | backup ONLINE 0 0 0 > | raidz2 ONLINE 0 0 0 > | c10t2d0 ONLINE 0 0 0 > | c10t2d2 ONLINE 0 0 0 > | c10t2d3 ONLINE 0 0 0 > | c10t2d1 ONLINE 0 0 0 > | c10t2d4 ONLINE 0 0 0 > | c10t2d5 ONLINE 0 0 0 > | c10t2d6 ONLINE 0 0 0 > | c10t2d7 ONLINE 0 0 0 > | c10t3d0 ONLINE 0 0 0 > | c10t3d1 ONLINE 0 0 0 > | c10t3d2 ONLINE 0 0 0 > | c10t3d3 ONLINE 0 0 0 > | c10t3d4 ONLINE 0 0 0 > | c10t3d5 ONLINE 0 0 0 > | c10t3d6 ONLINE 0 0 0 > | spares > | c10t3d7 AVAIL > |_________________________________________________ > > > Is ZFS dependent on the order of the drives? Will this cause any issue > down the road? Thank you all; > > Scott > -- > This message posted from opensolaris.org > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss > -- Frank Contrepois Coblan srl
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