Users Guide

The Storage Center Snapshot Recovery wizard starts.
3. Select a snapshot from which to recover data.
NOTE: Only one snapshot per volume can be selected.
4. Click Next.
The Host Selection page opens.
5. Select the host for accessing the recovered datastore.
6. Click Next.
The Datastore Name page opens.
7. Specify a name and location for the recovered datastore.
8. Click Next.
The Mapping LUN page opens.
9. Select the LUN for mapping the recovered datastore.
10. Click Next.
The Ready to Complete page opens.
11. Click Finish.
Create and Manage Replications and Live Volumes
Use the plugin to add and manage replications and Live Volumes to VMFS datastores on Dell storage. You can use the plugin convert a
replication to a Live Volume and vice versa.
The Dell Storage vSphere Client Plugin supports two basic models for migrating data between Storage Centers:
• Replications
• Live Volumes
A replication copies volume data from one Storage Center to another Storage Center to safeguard data. A Live Volume is a replicating
volume that can be mapped and active on a source and destination Storage Center at the same time.
Replications can be synchronous or asynchronous:
• Asynchronous replication—Copies snapshots from the source volume to the destination volume. If the local Storage Center or site
fails before the write is delivered, it is possible that writes will not be delivered to the destination volume
• Synchronous replications—Keeps the source and destination volume fully synchronized at all times by making sure that each write is
successfully written to both the source volume and the destination volume before responding to the server.
Synchronous replications can be further defined by the mode:
• High Availability Mode—Accepts IO requests to the source volume when the destination volume is unavailable (or when latency is too
high) to avoid interrupting service. However, if writes are accepted to the source volume, the destination volume data becomes stale.
• High Consistency Mode—Prevents IO requests to the source volume when the destination volume is unavailable to make sure that
the volumes remain identical. However, the source volume cannot be modified during this time, which can interrupt operations.
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.
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Working With Dell Storage