Pasted 3 months, 1 week ago — Expires in 266 days
Hey Allen, I have been a long time listener of JB and have been watching since the first TechSnap episode and was hoping that you could share some of your magical ZFS knowledge and powers to help solve a problem that I have created/stumbled upon. I have a Zpool with 4 Vdevs that are mirrors of 2 drives each. Yesterday after a reboot of my main freenas server the pool became unavailable. After several reboots and zpool import I found that ZFS would simply not import the pool. It was stating that one drive for 2 of the Vdevs was unavailable and could not import the pool until they were attached. Well the drives were attached but I found that the freenas system was outputting the error on connection “ GPT rejected” and in turn not adding the device to the system? At this point I have no idea how to proceed and am in question to the stability of ZFS if a pool of mirrors can be taken down by something as simple as this. The worst part of all this is that the data is in transition and due to this there is no current backup. Any help would be greatly appreciated. [root@freenas /nonexistent]# zpool import -f pool: Hidden id: 14081934981931988315 state: UNAVAIL status: One or more devices are missing from the system. action: The pool cannot be imported. Attach the missing devices and try again. see: http://illumos.org/msg/ZFS-8000-6X config: Hidden UNAVAIL missing device mirror-1 ONLINE gptid/149e6c2e-0758-11e7-9474-001b21956a90 ONLINE gptid/b88ca6d2-8dae-11e8-88e5-001b21956a90 ONLINE mirror-2 DEGRADED gptid/170e17f7-0758-11e7-9474-001b21956a90 ONLINE 15497951999103788446 UNAVAIL cannot open mirror-3 ONLINE gptid/1a0db401-0758-11e7-9474-001b21956a90 ONLINE gptid/1b531a2a-0758-11e7-9474-001b21956a90 ONLINE mirror-4 DEGRADED 2362305398524246203 UNAVAIL cannot open gptid/8560ae57-0758-11e7-9474-001b21956a90 ONLINE Additional devices are known to be part of this pool, though their exact configuration cannot be determined.