Lenovo Secure Managed Client - Manual (Page 59)

Chapter 9. Configuring synchronous and asynchronous
replication
This chapter shows you how to create synchronous and asynchronous replication
and promote the secondary storage array to become the primary in the case of a
problem. It also discusses the use of asynchronous replication
Replication allows for disaster recovery by using more than one storage array; one
is used as a primary and the other is used as a secondary or backup array.
Synchronous replication provides real-time backup. Because of this the backup
storage array needs to be in close proximity to the primary storage array.
Asynchronous replication utilizes snapshots. This type of replication can be
configured to only occur at scheduled intervals. By scheduling backups, the
secondary storage array can be located off-site.
Prerequisites
These are the prerequisites for synchronous and asynchronous replication:
v Both the primary and secondary storage arrays must have synchronous
replication licenses installed.
v The secondary storage array must have storage equal to or greater than the
primary storage array. See Chapter 4, “Secure Managed Client specific
installation,” on page 9 for more information.
v The secondary storage array must be provisioned by the LANDesk console.
v The secondary storage array must not have any base images, user volumes or
NAS shares installed.
v Replication requires additional licensing. See “License upgrades” on page 17
Creating synchronous replication
To create synchronous replication do the following:
1.
Right-click on the primary storage array and click Configure replication. The
Configure replication window opens.
2. From the Replication mode drop-down, select Synchronous. SMC Manager will
list available storage arrays suitable for synchronous replication.
3. Select the storage array that is to be secondary and click Synchronize.
4. After the configuration is complete, the secondary storage array will be listed
under the primary storage array in the SMC Manager.
Note: Even though the link between the two arrays is complete, the
synchronous replication operation can continue for some time depending on
the number of user volumes that are already created on the primary storage
array.
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