HP XP P9500 Storage - Manual (Page 494)

Table 112 Using a 4x4x4 Cascade Configuration (continued)
See Description Target
Maintenance or
Failure
Number
Consistency
Preservation function, site storage system”
(page 532)
and then resynchronize
them.
TIP: The term "storage system failure, with information lost from memory," indicates a failure that
causes the loss of information in memory. In such a failure, the copy pair information and the data
are completely lost, so the hardware information must be reconfigured.
This section provides maintenance and troubleshooting procedures for 3DC Cascade (URxUR)
configurations.
The figures in the procedures in this section use the following legend.
The bullet lists under the figures in the procedures show the commands that must be executed.
Performing primary site storage system maintenance
The following are the procedures for performing primary site storage system maintenance.
Failover
1. Stop operation at the primary site.
2. From the intermediate site, execute the YKSUSPND REVERSE command for the Continuous
Access Synchronous Z copy group container.
•
YKQUERY
•
YKSUSPND REVERSE
•
YKEWAIT GOTO(SUSPEND)
494 Maintenance and troubleshooting operations