1 |
Do operating system tools show a disk bottleneck
on the client or server? For more information, see Identifying disk bottlenecks for Tivoli Storage Manager servers.
|
- Yes
- Fix any disk issues. If applicable, check the load on the system
for applications that are not related to Tivoli Storage
Manager.
See Tuning disk storage for the server.
- No
- Collect client and server instrumentation.
Go to question 2.
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2 |
Does client instrumentation show high file I/O
or directory process time? |
- Yes
- Go to question 3.
- No
- Go to question 4.
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3 |
Do you have many files or a complex directory
structure? |
- Yes
- Use file system or operating system tools to help improve backup
and restore operations.
See File space tuning.
- No
- Fix any disk issues. If applicable, check the load on the system
for applications that are not related to Tivoli Storage
Manager.
See Tuning disk storage for the server.
|
4 |
Does server instrumentation show slow disk or
tape I/O rates? |
- Yes
- Fix any disk issues. If applicable, check the load on the system
for applications that are not related to Tivoli Storage
Manager.
See Tuning disk storage for the server.
- No
- Find the session thread for this node in server instrumentation.
The thread might include the node name or you can see if the session
thread ID is listed in the Activity Log to determine which node is
affected.
Go to question 5.
|
5 |
Does the client show high Data
Verb time and does the server show high network time
for that node’s session thread? |
- Yes
- Investigate network speeds and issues and fix any problems.
See Tuning network performance.
- No
- Go to question 6.
|
6 |
Does server instrumentation show that most time
is spent in database operations for that session thread? |
- Yes
- Investigate database issues, including disk and buffer pool settings.
Fix any problems.
See Identifying server performance problems.
- No
- IBM® support personnel can
help in diagnosing performance problems by requesting certain traces
and other information from the environment. The comprehensive analysis
of a performance problem is a billable service that is offered to Tivoli Storage
Manager customers.
For information about IBM Support and gathering data for problems, see the Software Support Handbook
See
also Collecting and analyzing data for performance problems.
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