Administrator Guide

• A recommendation about whether the destination volume is currently synchronized with the source volume is displayed

below the Sync Data Status eld in green or yellow text.

NOTE: For high consistency mode synchronous replications that are current, the Use Active Snapshot check box

is automatically selected.

Figure 91. Activate Disaster Recovery Dialog Box

b. (Live Volume, Storage Center 6.5 and later only) Select the Preserve Live Volume check box to direct IO requests to the

secondary volume without deleting the Live Volume. If the Live Volume manages a replication, Preserve Live Volume must

be selected to preserve the managed replication later in the restore process.

• If Preserve Live Volume is selected, Storage Center directs IO requests to the secondary volume by promoting it to

primary. The Live Volume is not deleted and may be repaired when the original primary Storage Center comes back

online. Volume identity is preserved so that administrator intervention is not required on the servers mapped to the

volume. If a replication is managed by the Live Volume, it moves to follow the newly promoted primary volume. Fewer

volume settings are available because the existing Live Volume settings are used.

• If Preserve Live Volume is not selected, Storage Manager deletes the Live Volume, creates a view volume, and maps it

to a server. During the restore process, the Live Volume is recreated. If a replication is managed by the Live Volume, the

managed replication is removed later during the restore process.

c. Select a server to map the recovery volume to by clicking Change next to the Server label.

• A server is required for each restore point.

• Click Advanced Mapping to congure LUN settings, restrict mapping paths, or present the volume as read-only.

• This option is not available if the Preserve Live Volume check box is selected.

d. Choose which snapshot will be used for the activated volume.

• If Preserve Live Volume is not available or not selected, use the current state of the volume by selecting Use Active

Snapshot, or select a frozen snapshot by clicking Change next to Snapshot. By default, the last frozen snapshot is

used.

• If Preserve Live Volume is selected, the last frozen snapshot is used unless Use Active Snapshot is selected.

e. (Optional) If Preserve Live Volume is not available or not selected, click Change next to Snapshot Prole List to specify

which snapshot proles will be associated with the activated volume.

f. Click OK.

7. Click Finish.

• Storage Manager activates the recovery volumes.

• Use the Recovery Progress tab to monitor DR activation