Dell Storage vSphere Client Plugin Version 6.0 Administrator’s Guide

Modify a Datastore Replication

Modify the settings of an existing datastore replication.

1. Select the datastore that is being replicated.
2. Select Actions > Dell Storage Actions > Replications/Live Volume > Edit Settings/Convert.
   The Modify Replication or Live Volume wizard starts.
3. Select a replication to modify.
4. Click Next.
   The Volume Settings page opens.
5. Select the volume settings:
   • Storage Type—A Storage Type is a pool of storage with a single datapage size. The Storage Type is set at the disk folder level, and once set it cannot be changed without assistance from technical support. (This entry appears only if the preferences are set in Storage Center).
   • Storage Profile—A Storage Profile controls how the Storage Center manages volume data.
     • Recommended (All Tiers)—Select this option for most volumes. The Recommended profile allows the system to automatically progress data between and across all storage tiers based on the type of data and usage.
     • High Priority (Tier 1)—Select this option to force volume data to remain in tier 1 storage.
     • Medium Priority (Tier 2)—Select this option to force volume data to remain in tier 2 storage.
     • Low Priority (Tier 3)—Select this option to force volume data to remain in tier 3 storage.
   • Data Reduction Profile—Data Reduction uses compression and deduplication to decrease the amount of disk space that is used by volume data. Compression reduces the amount of space that is used by a volume by encoding data. Deduplication finds duplicate pages and removes them, conserving the disk space that would be used by additional copies. When deduplication is used, compression is also applied to a volume.
   • Cache Settings—Select or clear the Read Cache Enabled and Write Cache Enabled check boxes to set the default cache settings for the new volume.
   • Selected Volume QoS Profile—Accept the Volume QoS Profile Default or click Change it to select a different QoS Profile.
6. Click Next.
   The Snapshot Profile page opens.
7. Select a Snapshot Profile to use for the volume and click Next.
   The Replication Options page opens.
8. Select the replication settings:
   • Replication Type:
     • Replication, Asynchronous
     • Replication, Synchronous—High Availability
     • Replication, Synchronous—High Consistency
   • QoS definition—Select a predefined QoS definition for the replication.
   • Replicate Active Snapshot—Select this option to copy all writes from the active snapshot area of the volume. This option cannot be disabled for synchronous replication.
   • Deduplication—Select this option to copy only the changed portions of the snapshot history on the source volume, rather than all data captured in each snapshot. Deduplication saves bandwidth but is more resource intensive for the Storage Center.
   • Select the Replication Target Location.
9. NOTE: If you choose to change the replication type from a replication to a Live Volume, a warning dialog box opens.
   Select the check box to confirm that you want to make the conversion, and then click OK.
   If you confirmed that you want to convert the replica to a Live Volume, the Live Volume Options page opens.
10. Set the Live Volume options:
    • Select a Secondary QoS Definition from the drop-down list.
    • Select or clear the Storage Center swap options. If you choose to Automatically Swap Primary Storage Center, click Show advanced settings for more options for determining when to swap:
      • Min. data written to secondary before swap
      • Min. % of I/O on secondary before swap
      • Min. time as primary before swap
    • For synchronous replications, select Failover Automatically to configure Live Volumes to automatically fail over when service is disrupted. By default, Restore Automatically is also selected.
    • Specify a Live Volume Secondary Mapping target location.
11. Click Next.
    The Ready to Complete page opens.
12. Click Finish.