Date: Mon, 13 Jul 2015 16:13:35 -0700 From: Chris Stankevitz <chris@stankevitz.com> To: freebsd-fs@freebsd.org Subject: Offline/online a drive from a mounted RW RAIDZx pool: resilver needed? Message-ID: <55A4461F.6020308@stankevitz.com>
next in thread | raw e-mail | index | archive | help
When I offline a drive from a RW RAIDZx pool and later bring it online, do I have to endure a full resilver? If not, ZFS must keep track of history (sort of like subversion) so that it can replay missing data. I believe the answer is "no" given my experience today: 1. 11 drive pool healthy (~10 TB of data) 2. I (accidentally) pull a drive from hot-swap bay 3. pool degraded 4. 30 seconds later I reinsert the drive 5. pool still degraded (disk missing) 6. 300 seconds later I issue "zpool online /dev/daX" 7. A few seconds later, pool healthy again 8. I did not notice any resilvering Chris
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?55A4461F.6020308>