So the rebooting is part of a process called fencing. Fencing, a safety mechanism, prevents the hosts from trying to write to a resource thats in a questionable state. The secondary storage questions will have to be fielded by someone with some more knowledge.
On Thu, Mar 7, 2013 at 9:31 AM, Valery Ciareszka <valery.teres...@gmail.com>wrote: > Hi all, > > I use CS 4.0.1 (1 management node, 1 KVM node, 2 storage nodes that act > like single nfs server (HA) - have primary and secondary storage there, one > more NFS server for another secondary storage (having 2 SS in one zone) > I've faced next issues: > > -KVM node tries to reboot when primary storage is offline. I had made wrap > script on /sbin/reboot and found that reboot is called from kvmheartbeat.sh > script: > > reboot called at Thu Mar 7 11:08:19 EST 2013 > root 9943 0.0 0.0 108164 1528 ? S 11:08 0:00 /bin/bash > /usr/lib64/cloud/common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh -i > 10.6.10.1 -p /GIGO/cloud -m /mnt/50127bd7-d195-3f65-83ea-f131c2d5dc73 -c > > I tested how VM feels itself upon offlining primary storage - when primary > storage returns back, everything is ok inside VM. > > So I have the question - why KVM node tries to reboot itself ? > > Several more questions about secondary storage. > > -If I have more than 1 secondary storage configured within one zone, how > does cloudstack choose on which of them it will store > templates/iso/snapshots ? > > -I realized that contents of 2 sec storage are different. Imagine we have > lost contents of one of the secondary storage permamently. But we have 2 > important templates that were backuped. But they have 100gb+.Is there way > to put them on new secondary storage without uploading 100GB through > webmanagement ? > > -Is there way to keep both secondary storages in sync ? > > > -- > Regards, > Valery > > http://protocol.by/slayer >
