Dell Brocade 6520 Fabric OS Troubleshooting and Diagnostics Guide v7.1.0 - Page 37

Performance issues, As LSAN zone databases get bigger

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FC-FC routing connectivity 2 switch:admin> pathinfo 5 Hop In Port Domain ID (Name) Out Port BW Cost 0 2 1 (sw0) 6 4G 500 1 23 2 (sw0) 8 4G 500 2 4 3 (sw0) 3 4G 500 3 12 4 (sw0) 18 4G 10000 4 4 7 (switch_3) 0 4G 500 5 26 5 (switch_3) E - - To display basic and extended statistics in interactive mode: switch:admin> pathinfo Max hops: (1..127) [25] Fabric Id: (1..128) [-1] Domain|Wwn|Name: [] 8 Source port: (0..15) [-1] Destination port: (0..255) [-1] Source pid: (0x0..0xefff00) [ffffffff] 0x061600 Desination pid: (0x0..0xefff00) [0] 0x01f001 Basic stats (yes, y, no, n): [no] y Extended stats (yes, y, no, n): [no] y Trace reverse path (yes, y, no, n): [no] Source route (yes, y, no, n): [no] Timeout: (1000..30000) [10000] Target port is Embedded Hop In Port Domain ID (Name) Out Port BW Cost 0 2 1 (sw0) 6 4G 500 1 23 2 (sw0) 8 4G 500 2 4 3 (sw0) 3 4G 500 3 2 4 (sw0) 24 4G 10000 4 3 7 (switch_3) 2 4G 500 5 27 5 (switch_3) 24 - - Reverse path 6 24 5 (switch_3) 7 2 7 (switch_3) 8 24 4 (sw0) 9 3 3 (sw0) 10 8 2 (sw0) 11 6 1 (sw0) (output truncated) 27 4G 3 4G 2 4G 4 4G 23 4G 2 - For details about the pathInfo command, refer to the Fabric OS Command Reference. 500 500 500 10000 500 - 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. Fabric OS Troubleshooting and Diagnostics Guide 21 53-1002751-01

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Fabric OS Troubleshooting and Diagnostics Guide
21
53-1002751-01
FC-FC routing connectivity
2
switch:admin>
pathinfo 5
Hop
In Port
Domain ID (Name)
Out Port
BW
Cost
-----------------------------------------------------------------------------
0
2
1 (sw0)
6
4G
500
1
23
2 (sw0)
8
4G
500
2
4
3 (sw0)
3
4G
500
3
12
4 (sw0)
18
4G
10000
4
4
7 (switch_3)
0
4G
500
5
26
5 (switch_3)
E
-
-
To display basic and extended statistics in interactive mode:
switch:admin>
pathinfo
Max hops: (1..127) [
25
]
Fabric Id: (1..128) [
-1
]
Domain|Wwn|Name: []
8
Source port: (0..15) [
-1
]
Destination port: (0..255) [
-1
]
Source pid: (0x0..0xefff00) [ffffffff]
0x061600
Desination pid: (0x0..0xefff00) [0]
0x01f001
Basic stats (yes, y, no, n): [no]
y
Extended stats (yes, y, no, n): [no]
y
Trace reverse path (yes, y, no, n): [
no
]
Source route (yes, y, no, n): [
no
]
Timeout: (1000..30000) [
10000
]
Target port is Embedded
Hop
In Port
Domain ID (Name)
Out Port
BW
Cost
-----------------------------------------------------------------------------
0
2
1 (sw0)
6
4G
500
1
23
2 (sw0)
8
4G
500
2
4
3 (sw0)
3
4G
500
3
2
4 (sw0)
24
4G
10000
4
3
7 (switch_3)
2
4G
500
5
27
5 (switch_3)
24
-
-
Reverse path
6
24
5 (switch_3)
27
4G
500
7
2
7 (switch_3)
3
4G
500
8
24
4 (sw0)
2
4G
500
9
3
3 (sw0)
4
4G
10000
10
8
2 (sw0)
23
4G
500
11
6
1 (sw0)
2
-
-
(output truncated)
For details about the
pathInfo
command, refer to the
Fabric OS Command Reference
.
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.