Verify target data viability (exchange only) – HP Storage Mirroring V5 Software User Manual
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Enabling Protection for a Server
The following table identifies the possible target status states.
Verify target data viability (Exchange only)
After you have configured your servers, you can use the Storage Mirroring Application Manager to run a test
that verifies that the database on the target is viable for failover. One benefit of performing the verification test
is that you do not have to perform an additional remirror or failover to verify target data viability.
In order to perform a database verification, the following prerequisites must be met:
•
The target server must be running Windows 2003, Service Pack 1 or later.
•
No Exchange data can reside on the system volume. (This is because the system volume cannot be reverted
from a snapshot.) See ”
Relocating the SMTP pickup path and queues
•
If you are running the Storage Mirroring Application Manager from any server other than the source or
target, you must install the Exchange System Manager component on that client (due to a dependency on
the
cdoexm.dll
file).
•
If the current volumes do not have adequate space to contain the snapshots, modify the properties for the
Shadow Copies settings on each volume to set the storage location of the snapshots where the Exchange
data resides.
•
Target path blocking must be disabled for the connection in the Storage Mirroring Management Console.
While in verification mode, Storage Mirroring will queue on the target in the directory you selected during
Storage Mirroring configuration. You should be aware of your data change rate and make sure you have
adequate capacity on the volumes configured for the Storage Mirroring target queues. For more information,
see the Storage Mirroring
User’s Guide
.
NOTE:
You can also verify target data viability from a command line interface. The
TDV.exe
utility is
available from the
DT_Utilities
folder. For more information about using the target data verification
command line utility, see ”
Using the Target Data Verification (TDV) Utility
Target Status
Online
Mirroring
Mirroring Stopped
Re-mirror required
Retrying
Paused
Pausing
Restore Required
Replicating
Snapshot reverted
Target path unblocked
Target path blocked
(Unknown)
(Unsupported)