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Configuration: Premium Feature— Remote Replication 183
Journaling File Systems and Remote Replication
When using a journaling file system, you cannot gain read-only access to a
remote virtual disk. A journaling file system does not let you mount the
remote virtual disk in Windows NTFS. However, you can mount a snapshot
of the remote virtual disk, if available.
Setting Up and Managing Remote Replication
Prerequisites
Before setting up remote replication between two storage arrays, ensure that:
• The Remote Replication premium feature has been activated.
• The local storage array contains two replication repository virtual disks
(created during activation).
• The local storage array contains the primary virtual disk to be replicated.
• The remote storage array contains the secondary virtual disk to serve as the
replication target, and:
– Both virtual disks are visible to a single management station;
replicated disk pairs cannot be managed on separate instances of
storage management software.
– The RAID level of the secondary virtual disk can be different than that
of the primary virtual disk.
– The capacity of the secondary virtual disk (after creation and
formatting) must be equal to or greater than the capacity of the
primary virtual disk.
• The storage arrays containing the virtual disks you want to replicate are
connected to each other through a Fibre Channel switch fabric and are
accessible from a single management station.
If either the primary or secondary virtual disk does not exist, you must create
it before proceeding with remote replication setup. See "Activating the
Remote Replication Premium Feature and Creating Replication Virtual
Disks" on page 184 and complete the necessary steps.
If all virtual disks are created, skip to "Creating a Remote Replication" on
page 186.
book.book Page 183 Wednesday, June 8, 2011 5:01 PM