Hi Robert, You do not need to enable the feature flags at this point however you will in the future need to consider the following: You have come to a fork in the road. You can chose one of two directions going forward. 1. Follow the illumos path which is open and has a community. 2. Follow the Horacle path and hold your position with the ability to move back to Solaris ZFS.
You are running a home ZFS server so the risk is very small at this point and it's really a question of what you trust. Do you believe that Horacle will bring something to their closed works which could be more appealing than our community based illumos path offers? For example illumos can mount any version of ZFS with feature flags, Express/Solaris cannot. Regards, Mike -----Original Message----- From: Robert Soubie [mailto:robert.sou...@free.fr] Sent: Friday, August 17, 2012 1:53 PM To: Discussion list for OpenIndiana Subject: [OpenIndiana-discuss] Should I upgrade the pool? 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
