Xen users - Jul 2007 - disk space at dom0 - problem w/ quick and dirty solution

hi,


if dom0 ( /var/lib/xen ) is too small to take the save states of all running
domU''s, really
ugly things occur if a reboot / xend save eats up the whole disk space.
As recently seen ;) , the domU disks (located on one pv/vg on the same machine)
can''t be touched
by dm-mapper anymore and are going to be inconsistent to the device-mapper.
not a big issue, but really disturbing. another issue is, some xml (someone
could shed a light on
me, which exactly) cannot be written and xen/xend/XendStateStore.py refuses to
work around line
110 (in def load_state(self, cls): ). So xend isn''t able to start over.
As I didn''t know which
xml structure is needed by xend restore, i solved this by deleting the
save/suspend-images and
temporarily adding a return{} directly after load_state(self, cls): to skip the
restore completely.
after starting/stopping xend twice, i removed this return{} and was able to
start the domU''s
again.

Just a report, if someone encountered similar problems by getting out of
diskspace in dom0.



-- 
Stephan Seitz
Senior System Administrator

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