Dell Brocade 825 Brocade Adapters Troubleshooting Guide - Page 101

Displaying FCP initiator mode statistics, Displaying fabric statistics through HCM

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Statistics 3 Displaying fabric statistics through HCM Use the Fabric Statistics dialog box to monitor a variety of port data. 1. Launch the HCM. 2. Select the FC port from the device tree window. 3. Click Monitor > Statistics > Fabric Statistics. Displaying FCP initiator mode statistics Use the fcpim --stats command to display FCP initiator mode statistics and attributes. fcpim --stats [-l where: stats Displays FCP initiator mode statistics. pcifn PCI function number associated with the physical port. -l lpwwn Logical PWWN. This is an optional argument. If the -l lpwwn argument is not specified, the base port is used. -l rpwwn Remote PWWN. To clear FCP initiator mode statistics, enter the following command. fcpim --statsclr Statistics > FCP IM Module Statistics. or Right-click a port from the device tree and select Statistics > FCP IM Module Statistics. Enabling and disabling profiling for FCP initiator mode statistics through BCU When profiling is enabled, I/O latency data is distributed based on I/O size (average, minimum, and maximum). You can use this to study typical application I/O patterns, and this may help in tuning adapters, fabric, and targets for better performance. You must run the fcpim --stats command to display this data. Brocade Adapters Troubleshooting Guide 77 53-1002145-01

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Brocade Adapters Troubleshooting Guide
77
53-1002145-01
Statistics
3
Displaying fabric statistics through HCM
Use the
Fabric Statistics
dialog box to monitor a variety of port data.
1.
Launch the HCM.
2.
Select the FC port from the device tree window.
3.
Click
Monitor > Statistics > Fabric Statistics
.
Displaying FCP initiator mode statistics
Use the
fcpim --stats
command to display FCP initiator mode statistics and attributes.
fcpim --stats <port_id> <pcifn> <rpwwn> [-l <lpwwn>
where:
stats
Displays FCP initiator mode statistics.
pcifn
PCI function number associated with the physical port.
-l lpwwn
Logical PWWN. This is an optional argument. If the -l lpwwn argument is not
specified, the base port is used.
-l rpwwn
Remote PWWN.
To clear FCP initiator mode statistics, enter the following command.
fcpim --statsclr <pcifn> <rpwwn [-l <lpwwn>]
FCP initiator mode statistics
Use HCM to display FCP IM module statistics for each initiator target nexus (ITN). Statistics display
such as I/Os waiting for circular queue space, number of I/O context requests, I/O abort requests,
number of task management I/O context requests, I/O completions with OK status, number of
successful firmware I/O underrun operations, number of successful firmware I/O overrun
operations, aborted I/O requests, I/O timeouts, I/O selection timeouts, I/O protocol errors, host I/O
abort requests, PRLI statistics, and remote port statistics.
Use the following steps to display the
FCP IM Statistics
dialog box.
1.
Launch the HCM.
2.
Select the base adapter port from the device tree window.
3.
Click
Monitor > Statistics > FCP IM Module Statistics
.
or
Right-click a port from the device tree and select
Statistics
>
FCP IM Module Statistics.
Enabling and disabling profiling for FCP initiator mode statistics through BCU
When profiling is enabled, I/O latency data is distributed based on I/O size (average, minimum, and
maximum). You can use this to study typical application I/O patterns, and this may help in tuning
adapters, fabric, and targets for better performance. You must run the
fcpim --stats
command to
display this data.