Zpool degraded with one offline and one unavailable

[rickh925]

I had a power flicker that caused two disks of my raidz2 to drop out degrading the array. I choose replace from the gui on one drive and the resilver started. That's when I realized that they are in a SATA II port and it was going to take 65 hours per disk. I made what may be a mistake in offlining the disk that was being resilvered as it continued to be resilvered. My plan was to replace the controller with a SATA III controller and see if the process would go faster then. I wanted to replace that controller anyway. When I saw the resilver continuing, I figured I'd just let it go.

Now I can't get any of the two disks online or replaced. I can't take the array down right now but can tomorrow.

My array is an encrypted raidZ2 with 6 WD Reds.

Code:

[root@freenas] ~# zpool status -v
  pool: BabENC01
state: DEGRADED
status: One or more devices could not be opened.  Sufficient replicas exist for
        the pool to continue functioning in a degraded state.
action: Attach the missing device and online it using 'zpool online'.
  see: http://www.sun.com/msg/ZFS-8000-2Q
  scan: resilvered 117G in 41h1m with 0 errors on Fri Jul 12 05:11:05 2013
config:
 
        NAME                                                STATE    READ WRITE CKSUM
        BabENC01                                            DEGRADED    0    0    0
          raidz2-0                                          DEGRADED    0    0    0
            18057795719086542856                            UNAVAIL      0    0    0  was /dev/gptid/37087ff7-8b91-11e2-b023-6805ca0ea6be.eli
            4751264668269043469                            OFFLINE      0    0    0  was /dev/gptid/0c2e3a18-e97b-11e2-b341-6805ca0ea6be.eli
            gptid/37c491c0-8b91-11e2-b023-6805ca0ea6be.eli  ONLINE      0    0    0
            gptid/381e320d-8b91-11e2-b023-6805ca0ea6be.eli  ONLINE      0    0    0
            gptid/387c3b64-8b91-11e2-b023-6805ca0ea6be.eli  ONLINE      0    0    0
            gptid/38d6c12f-8b91-11e2-b023-6805ca0ea6be.eli  ONLINE      0    0    0
        logs
          mirror-1                                          ONLINE      0    0    0
            gptid/39826c9d-8b91-11e2-b023-6805ca0ea6be.eli  ONLINE      0    0    0
            gptid/39a17fdd-8b91-11e2-b023-6805ca0ea6be.eli  ONLINE      0    0    0
 
errors: No known data errors

Any help would be most appreciated.

thanks
Rick

 

[krantz]

Hello

I see nobody answered you (I´m a FreeNAS noob myself) I wonder how did you solve your problem?

 

[cyberjock]

I'm not sure why you think that SATA3 is faster.. do your disks do more than 300MB/sec?

 

[rickh925]

I never solved this. I copied the data off to my other FreeNAS array, destroyed this one and copied it back. Gave me a chance to try my link aggregation and get my switches setup correctly.

cyberjock - Don't know if they can do more than 300MB/sec, but they are rated, buffer to host controller at 6Gb/s. Of course that's max, off the cache...yeah, I know. I just thought that the resilver rate of 117G in 41 hours was very slow. It was not CPU bound and at 32GB of RAM, that wasn't the problem either. The fact that the array was in use was probably the biggest factor. Anyway, the easiest thing was to rebuild. Much faster.

Rick

 

[cyberjock]

I asked because your standard platter based drive doesn't even hit the SATA2 limits(300MB/sec). The interface really doesn't matter, its all bout the platter to head limits. /shrug

If its going that slow you may have another failing disk. Might want to check SMART and stuff.