Creating A Pair Using The Create Pair Procedure - Hitachi AMS2100 User Manual

Creating a pair using the Create Pair procedure

NOTE: When not specifying the pair name, the name of the following is
assigned to automatic.
When the S-VOL is assigned: SS_LUXXXX_LUYYYY
When the S-VOL is not assigned : SS_LUXXXX_LUNONE_nnnnnnnnnnnnnn
XXX: LU number of P-VOL (four digits with 0)
YYYY: LU number of V-VOL (four digits with 0)
nnnnnnnnnnnnnn: 14-digit optional numbers
("Year/Month/Day/hour/minute/second/millisecond" at the time of the pair
creation)
Hitachi AMS 2000 Family Copy-on-Write SnapShot User Guide
4. Existing volumes in the array are listed in the Primary Volume
box. Click the button next to the LUN that you want to back up,
then click Next. The Prepare Secondary Volume screen displays.
5. The system will create a secondary volume (SnapShot virtual
volume) in the array, with the same capacity as the selected P-
VOL. In the LUN box, use the default value (if present), or the
enter an available logical unit number. Then click Next. The Set
Pair Parameters screen displays.
6. Use the default Pair Name, or enter a new name.
7. From the Pool Number drop-down box, select a data pool for the
pair, then click Next. The Confirm screen displays.
8. Click Confirm, then click Finish. The backup pair is created.
Copying a volume using the create pair procedure allows you to set
copy pace, assign the pair to a group (and create a group), and
automatically split the pair after it is created.
Prerequisites
In addition to those prerequisites shown in the previous section, you
must also set up the V-VOL when using the Create Pair method. See
Setting up the Virtual Volume (V-VOL) (manual method) on page 5-4
To create a pair using the create pair procedure
1. In Navigator 2 GUI, select the desired array, then click the Show
& Configure Array button.
2. From the Replication tree, select the Local Replication icon. The
Pairs screen displays.
3. Select the Create Pair button. The Create Pair screen displays.
4. In the Copy Type area, click the SnapShot radio button. There
may be a brief delay while the screen refreshes.
5. In the Pair Name box, enter a name for the pair.
6. In the Primary and Secondary Volume fields, select the
primary and secondary volumes that you want to pair. For
SnapShot, the secondary volume list contains the virtual volumes
that have been previously set up. The size of the V-VOL must be
equal to the P-VOL size.
Using SnapShot
6-3