I did some more testing, here is what I found:
- I can destroy older and newer snapshots, just not that particular snapshot
- I added some more memory total 1GB, now after I start the destroy command,
~500MB RAM are taken right away, there is still ~200MB or so left.
o The machine is responsive,
o If I run 'zfs list' it shows the snapshot as destroyed (it is gone from the
list).
o There is some zfs activity for about 20 seconds - I can see the lights of the
HDDs of the pool blinking, then it stops
o If I try to access any of the file systems of that pool - to read a file for
example - the machine stops responding (or it is very slow) and I can't run
anything.
This is what 'top' shows when the above happens:
last pid: 1168; load avg: 0.10, 0.17, 0.25; up 0+00:17:42 10:14:02
76 processes: 73 sleeping, 2 running, 1 on cpu
CPU states: 97.4% idle, 0.0% user, 2.6% kernel, 0.0% iowait, 0.0% swap
Memory: 1024M phys mem, 264M free mem, 2048M swap, 2048M free swap
PID USERNAME LWP PRI NICE SIZE RES STATE TIME CPU COMMAND
1034 root 1 59 0 1768K 1284K cpu 0:01 0.40% top
1101 root 15 59 0 116M 45M sleep 0:08 0.08% java
1107 root 1 59 0 1964K 1068K sleep 0:00 0.07% iostat
1026 miro 1 59 0 7076K 1840K run 0:00 0.04% sshd
1053 root 12 59 0 86M 13M sleep 0:00 0.03% java
7 root 12 59 0 10M 8984K sleep 0:02 0.01% svc.startd
276 root 1 59 0 1064K 548K sleep 0:00 0.00% utmpd
9 root 23 59 0 9480K 8328K sleep 0:05 0.00% svc.configd
488 root 4 59 0 2500K 1780K sleep 0:04 0.00% vold
397 root 11 59 0 8996K 7236K sleep 0:01 0.00% cctransport
384 root 16 59 0 10M 6952K sleep 0:00 0.00% fmd
No disk activity... It can stay in this state for hours, nothing changes.
If I 'cold reset' it, the snapshot I was trying to destroy is back on the 'zfs
list' command.
Any ideas what else to test or change are welcome.
Is there a way to get rid of that snapshot, or to check its consistency somehow?
Thanks,
Miro
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