Hi,
I have a problem that's occurred a couple of times with both my test and
production systems. I'd like to know if I'm doing something wrong or it
could be a potential bug.
I have a Debian 7 wheezy dom0 running a Debian 7 wheezy domU. I plan on
deploying multiple instances but right now I'm building one to replace an
existing production server.
I installed the xs-tools on the VM from the XenServer 6.2 distribution, and
most everything works just fine, however I have stumbled on an issue that's
struck me 3 times on 2 serparate servers. When I take a live snapshot,
*sometimes* (not always) the guest OS pukes and starts throwing disk
errors. It effectively nails the guest OS And causes it to die with miles
of IO errros all over the console. It's not pretty :\
Any ideas? I'm pretty sure in the latest instance the guest OS was fully
loaded and sitting at a login prompt at the time, so it wasn't the lack of
the xs-tool daemon as far as I can see. Maybe something a process was doing
in the background on the guest interfered?
This isn't a critical issue for me right now, I just need to remember to
snapshot when the guest VM is offline, but if I need to snapshot once this
is in production it could cause an unintended outage and downtime (which
make me slightly unpopular!).
--
Mark Benson
I have a problem that's occurred a couple of times with both my test and
production systems. I'd like to know if I'm doing something wrong or it
could be a potential bug.
I have a Debian 7 wheezy dom0 running a Debian 7 wheezy domU. I plan on
deploying multiple instances but right now I'm building one to replace an
existing production server.
I installed the xs-tools on the VM from the XenServer 6.2 distribution, and
most everything works just fine, however I have stumbled on an issue that's
struck me 3 times on 2 serparate servers. When I take a live snapshot,
*sometimes* (not always) the guest OS pukes and starts throwing disk
errors. It effectively nails the guest OS And causes it to die with miles
of IO errros all over the console. It's not pretty :\
Any ideas? I'm pretty sure in the latest instance the guest OS was fully
loaded and sitting at a login prompt at the time, so it wasn't the lack of
the xs-tool daemon as far as I can see. Maybe something a process was doing
in the background on the guest interfered?
This isn't a critical issue for me right now, I just need to remember to
snapshot when the guest VM is offline, but if I need to snapshot once this
is in production it could cause an unintended outage and downtime (which
make me slightly unpopular!).
--
Mark Benson