HP StorageWorks Storage Mirroring Recover User's Guide (T5437-96008, November 2009)

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Like-named cluster permissions
When protecting a cluster with a like-named cluster, you can perform the setup, failover,
and failback with the following permissions:
The user must be a member of the local Double-Take Admin group.
The user must be a member of the local Administrators group on all cluster nodes.
The user must be delegated Full Exchange Administrator access through
Exchange System Manager.
(Optional) In order to change the TTL within DNS during failover, the user must be
a member of the DnsAdmins group.
Next step: Configure protection for your like-named cluster
Multiple EVS failover
There are two ways to perform multiple EVS failover:
Set up multiple like-name jobs for each EVS on your source cluster, as described
in Configuring a like-named cluster.
Failover multiple EVS servers to pre-existing EVS servers on the target. If you
choose this option, instead of selecting the like-named equivalent, you will select
the target EVS with which to setup protection. The like-named cluster setup
window will not appear since you are not using a like-named target.
Note:
If you are running Exchange 2003 in mixed mode, the first installed EVS
contains the MTA (Message Transfer Agent) resource that is needed to
communicate with versions prior to Exchange2003. If you do not failover all
Exchange virtual servers, then any user who is in a different mail store than the
first one may not be able to route mail.
Configuring a like-named cluster
If you have not done so already, launch the Protecting an Exchange Server workflow.
The process for protecting a cluster with a like-named (standby) cluster is similar to
protecting a standard cluster. The following instructions point out the differences in
configuration. For more information about basic protection functions, see Protecting an
Exchange server.
1. In the Source Server field, select the source cluster that you want to protect.
2. In the Target Server field, select the same server.
Note:The server name will be appended with the suffix “(like-named)”