Is it possible to convert a plain jane disk (or slice) vdev to a mirror
vdev? With SVM (and other Volume Managers) it''s not terribly difficult
to change a plain meta device to a mirrored meta device. Can this be
done with ZFS?...
Like convert something similar to...
[root at qafx01:/]# zpool status tank02
pool: tank02
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
tank02 ONLINE 0 0 0
c3t0d0s12 ONLINE 0 0 0
errors: No known data errors
to...
[root at qafx01:/]# zpool status tank02
pool: tank02
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
tank02 ONLINE 0 0 0
mirror ONLINE 0 0 0
c3t0d0s12 ONLINE 0 0 0
c3t1d0s0 ONLINE 0 0 0
errors: No known data errors
I''m hoping yes, but expecting no. :(
P.S. I''m running on a Sun Fire X4200 M2...
[root at qafx01:/]# uname -iprsv
SunOS 5.10 Generic_118855-36 i386 i86pc
Thanks.
--
Sean
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See ''zpool attach''. - Eric On Wed, Jul 25, 2007 at 05:58:50PM -0400, Alderman, Sean wrote:> Is it possible to convert a plain jane disk (or slice) vdev to a mirror > vdev? With SVM (and other Volume Managers) it''s not terribly difficult > to change a plain meta device to a mirrored meta device. Can this be > done with ZFS?... > > Like convert something similar to... > [root at qafx01:/]# zpool status tank02 > pool: tank02 > state: ONLINE > scrub: none requested > config: > > NAME STATE READ WRITE CKSUM > tank02 ONLINE 0 0 0 > c3t0d0s12 ONLINE 0 0 0 > > errors: No known data errors > > to... > [root at qafx01:/]# zpool status tank02 > pool: tank02 > state: ONLINE > scrub: none requested > config: > > NAME STATE READ WRITE CKSUM > tank02 ONLINE 0 0 0 > mirror ONLINE 0 0 0 > c3t0d0s12 ONLINE 0 0 0 > c3t1d0s0 ONLINE 0 0 0 > > errors: No known data errors > > I''m hoping yes, but expecting no. :( > > P.S. I''m running on a Sun Fire X4200 M2... > [root at qafx01:/]# uname -iprsv > SunOS 5.10 Generic_118855-36 i386 i86pc > > Thanks. > -- > Sean >> _______________________________________________ > zfs-discuss mailing list > zfs-discuss at opensolaris.org > mail.opensolaris.org/mailman/listinfo/zfs-discuss-- Eric Schrock, Solaris Kernel Development blogs.sun.com/eschrock
Cindy.Swearingen at Sun.COM
2007-Jul-26 14:51 UTC
[zfs-discuss] Changing a root vdev''s config?
Sean, This scenario is covered in the ZFS Admin Guide, found here: docs.sun.com/app/docs/doc/817-2271/6mhupg6fu?a=view#gcfhe I provided an example below. Cindy # zpool create tank02 c0t0d0 # zpool status tank02 pool: tank02 state: ONLINE scrub: none requested config: NAME STATE READ WRITE CKSUM tank02 ONLINE 0 0 0 c0t0d0 ONLINE 0 0 0 errors: No known data errors # zpool attach tank02 c0t0d0 c0t2d0 # zpool status tank02 pool: tank02 state: ONLINE scrub: resilver completed with 0 errors on Thu Jul 26 08:47:18 2007 config: NAME STATE READ WRITE CKSUM tank02 ONLINE 0 0 0 mirror ONLINE 0 0 0 c0t0d0 ONLINE 0 0 0 c0t2d0 ONLINE 0 0 0 errors: No known data errors #> On Wed, Jul 25, 2007 at 05:58:50PM -0400, Alderman, Sean wrote: > >>Is it possible to convert a plain jane disk (or slice) vdev to a mirror >>vdev? With SVM (and other Volume Managers) it''s not terribly difficult >>to change a plain meta device to a mirrored meta device. Can this be >>done with ZFS?... >> >>Like convert something similar to... >>[root at qafx01:/]# zpool status tank02 >> pool: tank02 >> state: ONLINE >> scrub: none requested >>config: >> >> NAME STATE READ WRITE CKSUM >> tank02 ONLINE 0 0 0 >> c3t0d0s12 ONLINE 0 0 0 >> >>errors: No known data errors >> >>to... >>[root at qafx01:/]# zpool status tank02 >> pool: tank02 >> state: ONLINE >> scrub: none requested >>config: >> >> NAME STATE READ WRITE CKSUM >> tank02 ONLINE 0 0 0 >> mirror ONLINE 0 0 0 >> c3t0d0s12 ONLINE 0 0 0 >> c3t1d0s0 ONLINE 0 0 0 >> >>errors: No known data errors >> >>I''m hoping yes, but expecting no. :( >> >>P.S. I''m running on a Sun Fire X4200 M2... >>[root at qafx01:/]# uname -iprsv >>SunOS 5.10 Generic_118855-36 i386 i86pc >> >>Thanks. >>-- >>Sean >> > > >>_______________________________________________ >>zfs-discuss mailing list >>zfs-discuss at opensolaris.org >>mail.opensolaris.org/mailman/listinfo/zfs-discuss > > > > -- > Eric Schrock, Solaris Kernel Development blogs.sun.com/eschrock > _______________________________________________ > zfs-discuss mailing list > zfs-discuss at opensolaris.org > mail.opensolaris.org/mailman/listinfo/zfs-discuss