Hi all, So first off the specs: FreeNAS-8.0.3-RELEASE-p1-x86 (9591) 2 x 1TB sata 3 drives 4GB RAM Core 2 duo CPU The system: 2 x 1TB drives setup as a ZFS pool using RAIDZ (mirrored) ada2p2 ada3p2 The problem: It started with errors from a windows server which uses a iSCSI file extent located on the zpool as a backup disk, performance seemed to be at a crawl, so I enabled SMART and let it test and what do you know ada2p2 was having serious problems. So I add a new 1TB drive and boot backup (I didn't not remove anything), then use the GUI to 'replace disk' and select the new drive. Its now resilvering, but the issue here is the time its saying its going to take...... [ssh@freenas] /# zpool status -v pool: data state: ONLINE status: One or more devices is currently being resilvered. The pool will continue to function, possibly in a degraded state. action: Wait for the resilver to complete. scrub: resilver in progress for 0h39m, 0.01% done, 4592h56m to go config: NAME STATE READ WRITE CKSUM data ONLINE 0 0 0 mirror ONLINE 0 0 0 replacing ONLINE 0 0 1 ada2p2 ONLINE 0 0 2 8K resilvered ada1p2 ONLINE 0 0 3 127M resilvered ada3p2 ONLINE 0 0 0 errors: No known data errors That's 4592 hours!! Good bloody lord, can someone on here tell me if this is normal and what if anything can be done to speed things up?