6.0 HP X9720 Network Storage System Administrator Guide (AW549-96034, December 2011)
4. The QuickRestore DVD enables the iptables firewall. Either make the firewall configuration
match that of your other server blades to allow traffic on appropriate ports, or disable the
service entirely by running the chkconfig iptables off and service iptables
stop commands.
To allow traffic on appropriate ports, open the following ports:
• 80
• 443
• 1234
• 9000
• 9005
• 9008
• 9009
5. Run the following commands on the management console to tune your server blade for optimal
performance:
ibrix_host_tune -S -h <hostname of new server blade> -o
rpc_max_timeout=64,san_timeout=120,max_pg_segment=8192,max_pg_host=49152,
max_pg_request=12
ibrix_host_tune -t 64 -h <hostname of new server blade>
6. On all surviving nodes, remove the ssh key for the hostname that you just recovered from the
file /root/.ssh/known_hosts. (The key will exist only on the nodes that previously accessed
the recovered node.)
7. Copy /etc/hosts from a working node to /etc/hosts on the restored node.
8. Ensure that all servers have server hostname entries in /etc/machines on all nodes.
9. If you disabled NIC monitoring before using the QuickRestore DVD, re-enable the monitor:
ibrix_nic -m -h MONITORHOST -A DESTHOST/IFNAME
For example:
ibrix_nic -m -h titan16 -A titan15/eth2
10. Configure Insight Remote Support on the node. See “Configuring HP Insight Remote Support
on X9000 systems” (page 21).
11. Run ibrix_health -l from the X9000 management console to verify that no errors are
being reported.
NOTE: If the ibrix_health command reports that the restored node failed, run the
following command:
ibrix_health –i –h <hostname>
If this command reports failures for volume groups, run the following command:
ibrix_pv -a -h <Hostname of restored node>
Restoring services
When you perform a Quick Restore of a file serving node, the NFS, CIFS, FTP, and HTTP export
information is not automatically restored to the node. After operations are failed back to the node,
the I/O from client systems to the node fails for the NFS, CIFS, FTP, and HTTP shares. To avoid
this situation, manually restore the NFS, CIFS, FTP, and HTTP exports on the node before failing it
back.
Restore CIFS services. Complete the following steps:
142 Recovering the X9720 Network Storage System