HP XP Continuous Access Software - Manual (Page 79)

• Local array at the primary site
• Continuous Access XP Synchronous installed
• Continuous Access XP Journal installed
• Volume used as a Continuous Access XP Synchronous primary volume and as a Continuous
Access XP Journal primary data volume
• Continuous Access XP Journal master journal volume
• Local array at the Continuous Access XP Synchronous secondary site
• Continuous Access XP Synchronous installed
• Continuous Access XP Journal installed
• Continuous Access XP Synchronous secondary volume
NOTE:
This volume might be used as a Continuous Access XP Journal primary data volume when
performing disaster recovery at the primary site. For more information, see Recovering from
primary site failures .
• Continuous Access XP Journal master journal volume
NOTE:
This volume might be required to create a Continuous Access XP Journal pair when performing
disaster recovery at the primary site or when creating a Continuous Access XP Journal pair for
delta resync operations. For more information, see Recovering from primary site failures .
• Local array at the Continuous Access XP Journal secondary site
• Continuous Access XP Journal installed
• Continuous Access XP Journal secondary data volume
• Continuous Access XP Journal restore journal volume
Setup procedure
This section explains the procedure for setting up a 3DC multi-target configuration using Continuous
Access XP Synchronous and Continuous Access XP Journal.
1. Install Continuous Access XP Synchronous and Continuous Access XP Journal. Configure ports and
journal groups. Journal groups must be configured for arrays at the three sites.
2. At the primary site, create a Continuous Access XP Synchronous pair.
3. Wait until the status of the Continuous Access XP Synchronous pair becomes PAIR.
4. At the primary site, create a Continuous Access XP Journal pair.
When creating a Continuous Access XP Journal pair, select a value from 1 to 3 as the mirror ID.
5. Wait until the status of the Continuous Access XP Journal pair becomes PAIR. To create a Continuous
Access XP Journal pair for delta resync operations, continue with step 6.
6. To create the Continuous Access XP Journal pair for delta resync operations, specify the Continuous
Access XP Synchronous S-VOL in the Continuous Access XP Synchronous secondary site as the
primary Continuous Access XP Journal delta resync data volume, and specify the Continuous Access
XP Journal delta resync secondary data volume in the Continuous Access XP Journal secondary site
as the secondary data volume. For instance, execute the "Paircreate –f async … -nocsus" raid
managed command from the DC2 and DC3 sites in order to create the suspended journal pair..
Select any mirror ID from 1 to 3, except the one used in step 4.
Continuous Access XP Journal user guide 79