I was wondering if anyone knows why an "xm save" of a domain
doesn''t work to an OCFS2 volume? My current Xen setup shares storage
space between my hosts via OCFS2 on SAN-attached storage. If I try to do an xm
save of a running VM and put the save file on the OCFS2 volume, I get the
following:
Error: /usr/lib64/xen/bin/xc_save 25 12 0 0 4 failed
Usage: xm save [-c] <Domain> <CheckpointFile>
Save a domain state to restore later.
-c, --checkpoint Leave domain running after creating
snapshot
xm log shows these events:
[2009-04-25 16:46:35 6410] DEBUG (XendCheckpoint:91) [xc_save]:
/usr/lib64/xen/bin/xc_save 25 12 0 0 4
[2009-04-25 16:46:35 6410] DEBUG (XendCheckpoint:344) suspend
[2009-04-25 16:46:35 6410] DEBUG (XendCheckpoint:94) In saveInputHandler suspend
[2009-04-25 16:46:35 6410] DEBUG (XendCheckpoint:96) Suspending 12 ...
[2009-04-25 16:46:35 6410] DEBUG (XendDomainInfo:467)
XendDomainInfo.shutdown(suspend)
[2009-04-25 16:46:35 6410] DEBUG (XendDomainInfo:1114)
XendDomainInfo.handleShutdownWatch
[2009-04-25 16:46:35 6410] INFO (XendDomainInfo:1295) Domain has shutdown:
name=migrating-DEllis id=12 reason=suspend.
[2009-04-25 16:46:35 6410] INFO (XendCheckpoint:102) Domain 12 suspended.
[2009-04-25 16:46:35 6410] DEBUG (XendCheckpoint:110) Written done
[2009-04-25 16:46:35 6410] INFO (XendCheckpoint:373) Saving memory pages: iter 1
0%ERROR Internal error: Error when writing to state file (5) (errno 14)
[2009-04-25 16:46:35 6410] INFO (XendCheckpoint:373) Save exit rc=1
[2009-04-25 16:46:35 6410] ERROR (XendCheckpoint:144) Save failed on domain
DEllis (12).
Traceback (most recent call last):
File
"/usr/lib64/python2.4/site-packages/xen/xend/XendCheckpoint.py", line
112, in save
forkHelper(cmd, fd, saveInputHandler, False)
File
"/usr/lib64/python2.4/site-packages/xen/xend/XendCheckpoint.py", line
361, in forkHelper
raise XendError("%s failed" % string.join(cmd))
XendError: /usr/lib64/xen/bin/xc_save 25 12 0 0 4 failed
And then the domain suspends, and then it crashes. Any hints?
Thanks - Nick
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