Logging In To Primary And Remote Management Groups; Designating Or Creating The Remote Volume; Using Schedules For Remote Copy; Planning The Remote Copy Schedule - HP StorageWorks P4000 User Manual

Logging in to primary and remote management groups

Log in to both the primary and the remote management groups before you begin, or you must log in
to the remote management group while creating a remote copy.

Designating or creating the remote volume

Create a remote volume by using any of the following methods:
Make an existing volume into a remote volume.
Create a new remote volume while creating a remote snapshot.
Create a new volume from the cluster Details tab window, and then select the Remote radio button
on the Advanced tab of the New Volume window.
From the menu bar, select Tasks > Volume > New Volume.
For more information about these methods of creating remote volumes, see
volume" on page 21.

Using schedules for Remote Copy

Scheduled remote snapshots provide fault tolerance for business continuance and disaster recovery,
and a consistent, predictable update of data for remote backup and recovery.

Planning the Remote Copy schedule

Planning is critical. The following issues impact the amount of storage available in the system:

Recurrence

Capacity
Retention
Recurrence
How often do you want the snapshots created? The recurrence frequency must account for the amount
of time it takes to complete a remote snapshot. For example, if your recurrence schedule is set for a
new snapshot every four hours, you should ensure that the time to copy that snapshot to the remote
location is less than four hours.
Testing the copy time
One way to check the time required to copy a snapshot is to run a test of the actual process. To test
this process, take two remote snapshots of the primary volume. Because the first remote snapshot
copies the entire volume, it takes longer to copy. The second remote snapshot copies only changes
made to the volume since the first remote snapshot was taken. You create the second remote snapshot
after the time interval you intend to schedule. Because of that, the copy time for the second remote
snapshot is more representative of the actual time required for copying subsequent remote snapshots.
To test the copy time:
1. Create a remote snapshot of the primary volume.
2. Wait for the copy to finish.
3. Create another remote snapshot of the primary volume.
"Creating a remote
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