[SOLVED] Can't start domains

[fireplex]

So, changed nothing , needed to turn off power at home, so did graceful domain shutdown, stopped the array and ran a power off from the GUI.

 

Power back on, array starts fine, cannot start domains:

 

root@Tower:/mnt/cache/domains/dlna# virsh start DLNA

error: Failed to start domain DLNA

error: internal error: process exited while connecting to monitor: 2015-05-09T09:24:59.869165Z qemu-system-x86_64: -drive file=/mnt/cache/domains/dlna/dlna.img,if=none,id=drive-ide0-0-0,format=raw,cache=none,aio=native: could not open disk image /mnt/cache/domains/dlna/dlna.img: Could not open '/mnt/cache/domains/dlna/dlna.img': Permission denied

 

root@Tower:/mnt/cache/domains/dlna# ls -l

total 41943052

drwxrwxrwx 1 root root          36 Apr 30 21:44 DLNA/

-rw-rw-rw- 1 root root            0 Mar 30  2014 README.md-

-rw-rw-rw- 1 root root          843 Apr 20 12:07 dlna.cfg

-rw-rw-rw- 1 root root          843 Apr 20 12:12 dlna.cfg-

-rw-rw-rw- 1 root users 42949672960 May  9 09:55 dlna.img

-rw-rw-rw- 1 root root          771 Mar 30  2014 win7.cfg-

 

root@Tower:/mnt/cache/domains/dlna# id

uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel),281(docker)

 

Same problem for other domain.

 

Any ideas ? I'm root and permissions seem fine....

 

Should have added I first tried to start them via the GUI but got no error message, just didn't start - is there an error log somewhere for GUI failures?

[bonienl]

This could well be a corruption on your USB stick.

 

Run a windows disk check on it to repair any errors.

 

[fireplex]

Looks like my cache drive went read only, btrfs complaining all over the place.

 

Ever since I went to KVM my system has been so unstable...

 

> > >

[jonp]

Sounds like something else going on. KVM has nothing to do with your cache device going read only. Maybe look at smart data for the device and post syslog on the general support forum?  Have you tried running btrfs scrub?

[fireplex]

Everything was rock solid under Xen.

 

I rebooted again and it mounted rw, ran a scrub on btrfs and no errors, copied data off it, reformatted cache as xfs maybe that will help...

 

Running parity check.

 

No smart errors anywhere I can see.

[jonp]

Everything was rock solid under Xen.

 

I rebooted again and it mounted rw, ran a scrub on btrfs and no errors, copied data off it, reformatted cache as xfs maybe that will help...

 

Running parity check.

 

No smart errors anywhere I can see.

 

Not sure if this issue is still bothering you, but this line is a little odd:

 

-rw-rw-rw- 1 root users 42949672960 May  9 09:55 dlna.img

 

The rest of the files in there are root/root.  This is root/users.  Maybe a chown would solve that for you?  Not sure how it got changed to begin with though...

[fireplex]

Touch wood everything has been OK since moving to XFS but need to carry out some host reboots to be sure as that's when the issue occurred.

[jonp]

Touch wood everything has been OK since moving to XFS but need to carry out some host reboots to be sure as that's when the issue occurred.

 

Ok.  Next time you do, please report back and let me know if you have an issue.  Definitely want to make sure no problems occur.

[mr-hexen]

is your cache drive a SSD? Some SSD's go read-only for a short while before they finally die and refuse to power up. This is BY DESIGN, to protect against ultimate data loss, as data could be recovered by special data recovery agents.