Using the Remote Replication Premium Feature 99
CAUTION: Possible loss of data access – Any communication disruptions
between the primary storage array and the secondary storage array while
resynchronization is underway could result in a mix of new data and old data on
the secondary virtual disk. This condition would render the data unusable in a
disaster recovery situation.
Creating a Remote Replicated Pair
Before you create any replication relationships, virtual disks must exist at both
the primary site and the secondary site. The virtual disk that resides on the
local storage array is the primary virtual disk. Similarly, the virtual disk that
resides on the remote storage array is the secondary virtual disk. If neither the
primary virtual disk nor the secondary virtual disk exist, you must create these
virtual disks. Keep these guidelines in mind when you create the secondary
• The secondary virtual disk must be of equal or greater size than the
primary virtual disk.
• The RAID level of the secondary virtual disk does not have to be the same
as the primary virtual disk.
Use these steps to create the virtual disk.
Enable the Remote Replication premium feature.
Activate the Remote Replication premium feature.
Determine candidates for a remote replicated pair.
Create the remote relationship.
book.book Page 99 Wednesday, June 8, 2011 12:20 PM