Il 28/07/2014 08:43, Vadim Kimlaychuk ha scritto:
I have a fresh install of CS4.3 and going to configure Ceph RBD device as
primary storage. I can’t see this type at drop-down list (only nfs, clvm and
shared mountpoint are available).
I use CS 4.3 on KVM and Ceph.
No problem with ceph, but I upgraded from 4.1 to 4.3, so, sorry, I've no
answer for this.
Do I need to install libvirt on managment servers as well ?
Will it be a problem to work with different versions of libvirt
(ubuntu 12 and 14 have different) ?
Yes there will be.
I updated hosts from Ubuntu 13.04 (libvirt 1.0.2) to 14.04 libvirt
(1.2.2) and, when in mixed environment, i had this issues:
1- User VM on 13.04 hosts migrated to 14.04 hosts with a failure rate of
about 5%. In case of failure, the result was a crash of the VM, kernel
panic, and need to stop and start the VM from Cloudstack.
1a- In some cases (another 5%, more or less) the issue was a loss of
connectivity from and to VMs. Network restarting inside the VM had no
results and the solution was a VM reboot from Cloudstack
2- Users VM on 14.04 hosts didn't migrate to 13.04 hosts and resulted in
an error like this:
"""
Unable to migrate due to internal error process exited while connecting
to monitor:
W: kvm binary is deprecated, please use qemu-system-x86_64 instead
Supported machines are:
none empty machine pc Standard PC (i440FX + PIIX, 1996) (alias of
pc-i440fx-1.4) pc-i440fx-1.4 Standard PC (i440FX + PIIX, 1996) default)
pc-1.3 Standard PC pc-1.2 Standard PC pc-1.1 Standard PC pc-1.0 Standard
PC pc-0.15 Standard PC pc-0.14 Standard PC pc-0.13 Standard PC pc-0.12
Standard PC pc-0.11 Standard PC, qemu 0.11 pc-0.10 Standard PC, qemu
0.10 isapc ISA-only PC xenfv Xen Fully-virtualized PC q35 Standard PC
(Q35 + ICH9, 2009) (alias of pc-q35-1.4) pc-q35-1.4 Standard PC (Q35 +
ICH9, 2009) xenpv Xen Para-virtualized PC
"""
3 - Most of System VM hanged or went to panic during migration from
13.04 to 14.04 hosts.
In one case, migrating a Virtual Router resulted in lost of connectivity
from and to VMs connected to that router.
I stopped and started all migrated System VM / Virtual router to avoid
further issues.
4- Once all hosts was migrated to 14.04, no additional issues resulted
to me.
Hope this helps
--
Gerolamo Valcamonica
