HP StorageWorks XP Remote Web Console Software - Manual (Page 211)

Notes:
•
If you followed step a above, remove failures in the primary site and other locations,
change the system to a 3DC multi-target configuration (see “Changing to a 3DC
Multi-Target Configuration After Recovering from Primary Site Failures” (page 93) ), and
then follow the instructions in “Transferring Business Tasks from the XP Continuous Access
Secondary Site to the Primary Site (in a 3DC Multi-target Configuration)” (page 94) in
order to transfer the business tasks back to the primary site.
•
If you followed step b above, remove failures in the primary site and other locations, and
then follow the instructions in “Transferring Business Tasks from an XP Continuous Access
Secondary Site to the Primary Site (in a 3DC Cascading Configuration)” (page 93) in
order to transfer business tasks back to the primary site.
Figure 90 Recovery from a Disaster in the Primary Site
Recovering from Primary Site Failures in 3DC Multi Target Configuration
of XP Continuous Access Journal and XP Continuous Access Synchronous
(When Delta Resync Operation Is Performed)
If a disaster or a failure occurs only in the primary site of a 3DC multi-target system, use the
secondary volume in the XP Continuous Access Synchronous secondary site to enable the secondary
site to take over your business tasks. After transferring your business tasks to the secondary site,
remove the failure from the primary site so that you can transfer your business tasks back to the
primary site.
To transfer your business tasks to the XP Continuous Access Synchronous secondary site, follow
this procedure:
1. Use RAID Manager to execute the horctakeover command on the XP Continuous Access
Synchronous pair.
2. Use the XP Continuous Access Synchronous S-VOL to resume your business tasks.
Recovering from Primary Site Failures in 3DC Multi Target Configuration of XP Continuous Access Journal and XP Continuous
Access Synchronous (When Delta Resync Operation Is Performed)
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