Users Guide

For information about replications and Live Volumes, see the Dell Storage Manager Administrator’s Guide.
Replication Operations
Use the vSphere Client Plugin to add, modify, and remove datastore replications.
Replicating a Datastore
Follow this procedure to replicate a datastore.
Prerequisites
If you are using iSCSI connections for replications, the following conditions must be met:
● The destination Storage Center must be defined as an iSCSI Remote System on the source Storage Center.
● The source Storage Center must be defined as an iSCSI Remote Connection on the destination Storage Center.
See the Dell Storage Manager Administrator’s Guide for instructions on configuring iSCSI connections between Storage
Center.
● At least one Quality of Service (QoS) definition must be set up on the source Storage Center for replication.
See the Dell Storage Manager Administrator’s Guide for instructions on creating QoS definitions.
Steps
1. Select a datastore to replicate.
2. Select Actions > Dell Storage Actions > Replications/Live Volume > Add.
The Add Replica/Live Volume wizard starts.
3. Select the target (destination) Storage Center.
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 Replication Options page opens.
7. 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.
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Working With Dell Storage