Users Guide

Table 22. Exchange Smart Copy Options (continued)
Planning Item Description
● Immediately after Smart Copy creation—Starts Checksum Verification and
Soft Recovery as soon as Smart Copy creation is complete.
NOTE: This option is not available for Exchange mailbox database
replicas.
● Global Verification Window—use the times that you configured in ASM/ME
as described in Verification Settings.
You can also use this option to change the Global Verification times. You
must specify a minimum period of 3 hours. If you change the Global
Verification times, the changes apply to the local computer only, and affect
all other scheduled verifications.
● On a remote host pre-configured to perform Exchange verification—
Schedule Global Verification on a remote computer. The remote computer
must be configured to run the operation. (See Run Checksum Verification
and Soft Recovery on a Remote Host.)
Checksum Verification and Soft Recovery for Replicas
If the target Smart Copy is a replica of an Exchange component, rather than a snapshot or clone, the Checksum Verification and
Soft Recovery procedure differs. Volume replication is a continuous process and ASM/ME provides options to perform
Checksum Verification and Soft Recovery without disrupting replication.
NOTE:
For Exchange replicas only, the option to perform Checksum Verification is not available immediately after you
create a Smart Copy.
The following Checksum Verification and Soft Recovery options are available during replica Smart Copy operations:
● Clone and Verify—Creates a clone of the replicated volume and performs Checksum Verification only on the clone. This
procedure requires storage capacity on the secondary group that is at least the same size as the replica. (That is, if the
replica is 500 GB, you will need 500 GB of available space.) Use the Group Manager GUI to view and make space available
on the secondary group if necessary. The advantage of using a clone is that it does not disrupt ongoing data replication from
the base volume to the replica. The replication process continues while the clone undergoes Checksum Verification. Soft
Recovery runs on the original Smart Copy during a restore operation.
● Promote and Verify—Temporarily promotes the replica, making it functionally equivalent to the base volume. ASM/ME
performs Checksum Verification and Soft Recovery on the promoted replica.
This operation is supported on both local and remote hosts. The remote host must have access to the replication partner
group. Make sure the volume on the source group does not have an access control record that allows the remote host to
access it, because that access could result in data corruption.
This process has the advantage of not requiring any additional storage capacity on the secondary group. However, data
replication is paused during Checksum Verification and Soft Recovery, making the promoted replica a point-in-time copy of
the base volume. Scheduled replications fails during Checksum Verification and Soft Recovery of a promoted replica because
replication is paused.
This operation allows you to run a Soft Recovery on the original Smart Copy before you begin a data restore. When
Checksum Verification and Soft Recovery are complete, ASM/ME automatically demotes the replica and replication resumes.
The next scheduled operation on the volume resume.
● Defer Verification—Defers Checksum Verification and Soft Recovery to a later time. You can start the procedure manually
at some future time.
If you defer Checksum Verification and Soft Recovery permanently, you might find that the replica is corrupted and unusable
when you try to restore data from the replica to the base volume.
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Using ASM/ME with Exchange