HP Matrix 7.2 KVM Private Cloud Backup and Restore

Recovery steps
1. Unexport the Quorum disk, the Matrix KVM Private Cloud appliance physical disk and the Images repository
disk from the failed host only.
2. Reinstall the KVM Host OS, using the 6.3 RedHat version following the “RedHat Enterprise Linux 6 –
Installation Guide”. Then install the add-ons as shown in the table below.
Product To
Install
Additional Add-
ons To install
Packages To
Install
Notes
Basic Server
High Availability All packages in the
add-on
Required for
cluster
Resilient Storage The storage packages
in the add-on
Required for HA-
LVM
Virtualization All packages in the
add-on
Required for
virtualization
Desktop X Window System and
Desktop
Provide Console
GUI
Base System Storage Availability
Tools
Required for
multipath
Note
Depending on the way the OS is deployed, it may be necessary to
change the server’s profile to match the network configuration of the
server to be exactly the same as it was at the time of the backup.
3. Disable the NetworkManager if you have installed NetworkManager on the system. NetworkManager will
not work with cluster.
a. Check if the NetworkManager is installed:
service NetworkManager status
b. Disable the NetworkManager:
service NetworkManager stop
c. Turn off the NetworkManager:
chkconfig NetworkManager off
4. Export the Quorum disk, the Matrix KVM Private Cloud appliance physical disk, and the Images repository
disk to the newly installed host.
5. Rescan the disks using the following command:
echo “1” > /sys/class/fc_host/host1/issue_lip
echo “1” > /sys/class/fc_host/host2/issue_lip
6. Edit the /etc/sysctl.conf to enable the ipv4 forward using the following command:
net.ipv4.ip_forward = 1
7. Copy the following files from the active node to ensure that the most up-to-date configuration files are
available:
/etc/cluster/cluster.conf
/vm/config/<vm>.xml
/etc/multipath
8. Copy the remaining files listed in the backup list to the newly installed host from its backup copy.
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