ZFS Snapshots Not able to be accessed under .zfs/snapshot/name
FreeBSD at ShaneWare.Biz
Thu Aug 15 02:43:51 UTC 2013
On 14/08/2013 22:57, dweimer wrote:
> I have a few systems running on ZFS with a backup script that creates
> snapshots, then backs up the .zfs/snapshot/name directory to make sure
> open files are not missed. This has been working great but all of the
> sudden one of my systems has stopped working. It takes the snapshots
> fine, zfs list -t spnapshot shows the snapshots, but if you do an ls
> command, on the .zfs/snapshot/ directory it returns not a directory.
> part of the zfs list output:
> NAME USED AVAIL REFER MOUNTPOINT
> zroot 4.48G 29.7G 31K none
> zroot/ROOT 2.92G 29.7G 31K none
> zroot/ROOT/91p5-20130812 2.92G 29.7G 2.92G legacy
> zroot/home 144K 29.7G 122K /home
> part of the zfs list -t snapshot output:
> NAME USED AVAIL REFER
> zroot/ROOT/91p5-20130812 at 91p5-20130812--bsnap 340K - 2.92G -
> zroot/home at home--bsnap 22K - 122K -
> ls /.zfs/snapshot/91p5-20130812--bsnap/
> Does work at the right now, since the last reboot, but wasn't always
> working, this is my boot environment.
> if I do ls /home/.zfs/snapshot/, result is:
> ls: /home/.zfs/snapshot/: Not a directory
> if I do ls /home/.zfs, result is:
> ls: snapshot: Bad file descriptor
> I have tried zpool scrub zroot, no errors were found, if I reboot the
> system I can get one good backup, then I start having problems. Anyone
> else ever ran into this, any suggestions as to a fix?
> System is running FreeBSD 9.1-RELEASE-p5 #1 r253764: Mon Jul 29 15:07:35
> CDT 2013, zpool is running version 28, zfs is running version 5
I can say I've had this problem. Not certain what fixed it. I do
remember I decided to stop snapshoting if I couldn't access them and
deleted existing snapshots. I later restarted the machine before I went
back for another look and they were working.
So my guess is a restart without existing snapshots may be the key.
Now if only we could find out what started the issue so we can stop it
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