HP XP P9500 Storage - Manual (Page 718)

12 Troubleshooting
This chapter describes the troubleshooting procedures provided by Business Continuity Manager:
Troubleshooting Failures
Because Business Continuity Manager is frequently used in large-scale systems, a system failure
might cause a substantial problem.
The following are possible types of failure:
•
Volume errors
•
Line errors
•
Hardware or software errors not included in the above
Table 125 (page 718) lists the functions provided by Business Continuity Manager to mitigate
failures.
Table 125 Troubleshooting Functions
Objective Function
Reports errors by using a message or return code when a volume status changes to
an error status. Error notification
Monitors events that might cause an error in the future. Provides information to help
prevent errors from occurring or identify the cause of an error after it has occurred. Performance Monitor
Extracts trace information such as macros issued to the storage system to help find
the cause of errors when they occur. Collecting trace
information
Stores traced information in log files. The logs for commands executed from the ISPF
panel and the CLI can also be collected. Collecting logs
For 2DC configurations with HyperSwap and Cnt Ac-J Z, a HyperSwap is performed
for Cnt Ac-S Z copy groups with the HyperSwap attribute, and detected upon
completion. HyperSwap
completion detection
Error Notification
BC Z, Cnt Ac-S Z, TCA, or Cnt Ac-J Z copy pairs enter an error status when an error occurs. Business
Continuity Manager supports a function that monitors this status transition and notifies you of when
a copy pair enters an error status.
Table 126 (page 718) lists the error statuses.
Table 126 Error Statuses
Error Status Classification
When the pair enters the SUSPER status. Suspend status
When the pair enters a status other than the target status or a temporary status that
results in the target status. Unexpected status
When an I/O error occurs in a status acquisition I/O. I/O error in a status
acquisition I/O
Error notification is part of the YKWATCH, YKEWAIT, or YKQUERY command. If the status changes
to an error status such as those above, the YKWATCH command outputs the YKW003E message,
and the YKEWAIT command outputs the YKE003E message, and then terminates with the return
code 8. If you want to be notified of errors, you must execute the YKWATCH command beforehand.
718 Troubleshooting