HP StorageWorks P9000 Command View Advanced Edition Suite Software 7.1.1 Administrator Guide (web) (TB581-96065, September 2011)

13 Troubleshooting
This chapter describes how to resolve problems that occur during Device Manager and Tiered Storage
Manager operation, and how to read log files.
Common problems and solutions
This section describes problems that might occur while setting the environments of or operating Device
Manager and Tiered Storage Manager, and the causes of and solutions to these problems.
Problems and solutions in the management server
Problems and solutions in Device Manager
The following table lists common problems that occur in Device Manager and describes how to resolve
them.
Table 107 Common problems and solutions in Device Manager
SolutionProblem and causeNo.
Decrease the number of target storage systems or change
the size of the memory heap used by the Device Manager
server.
If you change the memory heap size, change it to the value
(in MB) that was calculated by using the formula below. If
the result of the following formula is less than 256 MB, then
no changes need to be made.
(0.0145 x number-of-displayed-LUNs + 0.00165 x
number-of-displayed-WWNs) x N
• number-of-displayed-LUNs: The total number of
LUNs displayed for all the hosts (not the number of LUNs
set in the storage system)
• number-of-displayed-WWNs: The total number of
WWNs displayed for all LUNs
• N: The number of users displaying reports at the same
time
PROBLEM: A list of LDEVs allocated
to a host or a list of LDEVs in a
logical group cannot be output to a
report by using the GUI.
CAUSE: Either too many storage
systems have been selected or the
size of the memory heap used by the
Device Manager server is too small.
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