Performance Issues - Brocade Communications Systems A7533A - Brocade 4Gb SAN Switch Base Troubleshooting Manual

Performance issues

Symptom General slow-down in FCR performance and scalability.
Probable cause and recommended action
As LSAN zone databases get bigger, it takes more switch resources to process them. Use the
enforce tag feature to prevent a backbone switch from accepting unwanted LSAN zone databases
into its local database.
Symptom Host application times out.
Probable cause and recommended action
The FCR tends to take a long time, more than 5 seconds, to present and setup paths for the proxy
devices. Certain hosts are able to do discovery much faster as a result they end up timing out. Use
the speed tag feature to always present target proxy to the host and import them faster. This helps
sensitive hosts to do a quick discovery without timing out or cause an application failure.
Fabric OS Troubleshooting and Diagnostics Guide
53-1001187-01
B/s (1s) -
B/s (64s) -
Txcrdz (1s) -
Txcrdz (64s) -
F/s (1s) -
F/s (64s) -
Words -
Frames -
Errors -
Hop In Port Domain ID (Name) Out Port BW Cost
---------------------------------------------------------
1 3 10 (web229) 12 1G 1000
Port
Tx
-----------------------------------------------
B/s (1s) 36
B/s (64s) 5
Txcrdz (1s) 0
Txcrdz (64s) 0
F/s (1s) 1
F/s (64s) 0
Words 240434036 2294316
Frames 20025929
Errors -
Hop In Port Domain ID (Name) Out Port BW Cost
---------------------------------------------------------
2 14 8
(output truncated)
For details about the pathInfo command, see the Fabric OS Command Reference.
Fibre Channel Router connectivity
- 0
- 1
- 0
- 0
- 0
- 2743
- 2752748
- 219849
- -
3 12
Rx Tx
76 0
5 5
- 0
- 0
1 0
0 0
2119951
54999 162338
4 -
(web228) E -
0
1
-
-
0
0
2822763
50881
0
Rx
0
5
-
-
0
0
2121767
56710
0
-
2
19