HP XP Racks - Manual (Page 75)

7 Troubleshooting Business Copy
This topic provides BC troubleshooting information.
BC pair tasks and display troubleshooting
The following table provides task and display troubleshooting information for BC pairs.
Corrective action Error
The RWC hangs, or BC pair task are not
properly performed. • Make sure all BC requirements and restrictions are met.
•
Make sure the XP7 storage system’s power is on and is fully functional.
• Check all input values and parameters to make sure that you entered
the correct information on the BC windows (such as P-VOL and S-VOL
IDs).
Select the correct volumes. The volume pairs are not displaying
correctly.
Check the error message for the failed task in the RWC. A BC error message is displayed in the
RWC during a task.
Note: You can use the RWC to set up email notifications of errors that occur
during pair user tasks.
For more information about managing your tasks and setting up email
notifications, see the HP XP7 Remote Web Console User Guide.
For a list of error codes and corrective actions, see HP XP7 Remote Web
Console Messages.
The pair may have been suspended or deleted from the UNIX/PC server
host using a RAID Manager command. If this did not happen, then XP7 Pair status is incorrect (or unexpected).
detected an error condition during BC tasks. Check the RWC error log. If
necessary, contact HP Technical Support.
Troubleshooting pinned tracks
If a pinned track occurs on a BC P-VOL or S-VOL, the XP7 storage system suspends the pair. Contact
your HP representative for assistance in recovering pinned tracks.
Troubleshooting extended copy times
The following table describes the causes for bottlenecks that result in extended copy times.
Response Cause
Reexamine the configuration.For information about
checking the MP usage rate, see the HP XP7 Performance
for Open and Mainframe Systems User Guide. A processor that has an MP usage rate that exceeds 80%
exists within the MP blade to which the P-VOL and S-VOL
are allocated.
Disable the option. The HOST I/O Performance option is enabled.
For more information about disabling, see “System options
that affect performance” (page 30) .
Make sure the configuration of the S-VOL’s HDD or external
storage is the same as the P-VOL’s. The S-VOL’s HDD or external storage performance is lower
than the P-VOL’s.
Check the error and make the necessary correction. The P-VOL’s HDD or external storage has an error.
Check the error and make the necessary correction. The S-VOL’s HDD or external storage has an error.
BC pair tasks and display troubleshooting 75