Editing Cluster Vip Addresses; Reconnecting Volumes And Applications After Changing Vips Or Isns Servers - HP StoreVirtual 4000 User Manual

Editing iSNS servers from the Cluster Tasks menu
1. Quiesce any applications that are accessing volumes in the cluster.
2. Log off the active sessions in the iSCSI initiator for those volumes.
3. Edit iSNS servers using either of the following methods:
From the Cluster Tasks menu:
a. Right-click the cluster or click Cluster Tasks.
b. Select Edit Cluster Edit iSNS Servers.
c. In the Edit iSNS Servers window, select the VIP to change or delete, or click Add to add
a new VIP.
d. Make the necessary changes and click OK to save.
From the iSCSI Tasks menu:
a. Select the cluster and click the iSCSI tab to bring it to the front.
b. Select the iSNS server IP to change and click iSCSI Tasks.
c. Select the appropriate menu item and make the desired changes.
d. Click OK to save.

Editing cluster VIP addresses

Add, change, or delete the VIPs for a cluster, usually as part of a network reconfiguration. Anytime
you add, change or remove the virtual IP address for iSCSI volumes, you are changing the
configuration that servers are using. You should rebalance the iSCSI sessions after making the
change. A command for rebalancing iSCSI sessions is available through the HP LeftHand
Command-Line Interface. The command syntax is in the HP LeftHand Storage Command Line
Interface User Guide, which is installed with the CLI.
NOTE: You can only remove a VIP if there is more than one VIP assigned to the cluster.
1. Quiesce any applications that are accessing volumes in the cluster.
2. Log off the active sessions in the iSCSI initiator for those volumes.
3. Delete persistent connections.
4. Edit cluster VIPs using either of the following methods:
From the Cluster Tasks menu:
a. Right-click the cluster or click Cluster Tasks.
b. Select Edit Cluster Edit Virtual IP addresses.
c. In the Edit Virtual IPs window, select the VIP to change or delete, or click Add to add a
new VIP.
d. Make the necessary changes and click OK to confirm and save.
From the iSCSI Tasks menu
a. Select the cluster and click the iSCSI tab to bring it to the front.
b. Select the VIP to change and click iSCSI Tasks.
c. Select the appropriate menu item for your task and make the desired changes.
d. Click OK to confirm and save.

Reconnecting volumes and applications after changing VIPs or iSNS servers

1. Reconfigure the iSCSI initiator with the changes.
2. Re-establish the iSCSI connections, with new persistent connections.
3. Restart the applications that use the volumes.
134 Working with clusters