OpenIndiana 151.a5 supports feature flags. You can use them after upgrading the pool to ZFS v5000
(you cannot downgrade from 5000 to lower numbers so this is currently OI 151a5 only (You can expect these features in all systems derived from Illumos like Linux, Nexenta or FreeBSD etc) more blog.delphix.com/csiden/files/2012/01/ZFS_Feature_Flags.pdf Am 17.08.2012 um 20:53 schrieb Robert Soubie: > Bonjour, > > I just rebuilt my home ZFS server using openindiana (formerly Solaris Xpress > 11) and napp-it, an configured it for Windows or Android clients. The boot > pool (rpool) was built by OI's installer; the storage pool (tank, 9GB) was > created by napp-it's "create pool" function, using the ashift=12 parameter (6 > x WDEARS 1.5Tb disks in RAIDZ2 configuration). > So far, everything works, as a couple of thorough tests have shown, and I > have restored the whole server from a backup machine I built. Napp-it "dd" > benchmarks reports nice figures, 125.02 MB/s Write and 323.88 MB/s Read. > > However, I have noticed that the pool status report (below) contains a > suggestion to upgrade the pool, which is currently v28, which surprises me. > Before proceeding, I would like to obtain informed opinions on the matter, > including risks on the whole setup, if any. > > Many thanks for any help, > Robert. > > Below is the information obtained from napp-it: > > My pools: > > Root Pool (ashift = 9): > rpool 5000 16454639525011445801 vdevs: 1 > vdev 1: mirror 9 500.07 GB > > Storage pool (ashift = 12, obtained through napp-it "Create Pool" command): > tank 28 4308072134310677912 vdevs: 1 > vdev 1: raidz2 12 9.00 TB > > zpool status (obtained from napp-it->jobs->scrub->pool status): > > pool: rpool > state: ONLINE > scan: resilvered 6.47G in 0h4m with 0 errors on Wed Aug 15 23:59:44 2012 > config: > > NAME STATE READ WRITE CKSUM > rpool ONLINE 0 0 0 > mirror-0 ONLINE 0 0 0 > c4t0d0s0 ONLINE 0 0 0 > c4t1d0s0 ONLINE 0 0 0 > > errors: No known data errors > > pool: tank > state: ONLINE > status: The pool is formatted using an older on-disk format. The pool can > still be used, but some features are unavailable. > action: Upgrade the pool using 'zpool upgrade'. Once this is done, the > pool will no longer be accessible on older software versions. > scan: none requested > config: > > NAME STATE READ WRITE CKSUM > tank ONLINE 0 0 0 > raidz2-0 ONLINE 0 0 0 > c5t0d0 ONLINE 0 0 0 > c5t1d0 ONLINE 0 0 0 > c5t2d0 ONLINE 0 0 0 > c5t3d0 ONLINE 0 0 0 > c5t4d0 ONLINE 0 0 0 > c5t5d0 ONLINE 0 0 0 > > errors: No known data errors > > > > > > -- > Éditions de l'Âge d'Or — Stanley G. Weinbaum > http://www.lulu.com/robert_soubie > http://www.smashwords.com/profile/view/StanleyGWeinbaum > > _______________________________________________ > OpenIndiana-discuss mailing list > OpenIndiana-discuss@openindiana.org > http://openindiana.org/mailman/listinfo/openindiana-discuss -- _______________________________________________ OpenIndiana-discuss mailing list OpenIndiana-discuss@openindiana.org http://openindiana.org/mailman/listinfo/openindiana-discuss