HP AA979A - StorageWorks SAN Switch 2/8V, Administrator'S Manual, Page: 331 / 465

Fabric OS 5.3.0 administrator guide 343
Monitoring filter-based performance
Filter-based performance monitoring counts the number of times a frame with a particular pattern is
transmitted by a port. Filter-based monitoring is achieved by configuring a filter for a particular purpose.
The filter can be a standard filter (for example, a SCSI read command filter that counts the number of SCSI
read commands that have been transmitted by the port) or a user-defined filter customized for your
particular use.
For 4/16 SAN Switch and 4/8 SAN Switch, Brocade 4Gb SAN Switch for HP p-Class BladeSystem,
Brocade 4Gb SAN Switch for HP c-Class BladeSystem, SAN Switch 2/16V, SAN Switch 2/32, and SAN
Director 2/128 models, the maximum number of filters is 8 per port, in any combination of standard filters
and user-defined filters.
For the SAN Switch 4/32, SAN Switch 4/32B, 4/64 SAN Switch, 400 MP Router and 4/256 SAN
Director models, the maximum number of filters is 12 per port, in any combination of standard filters and
user-defined filters.
The actual number of filters that can be configured on a port depends on the complexity of the filters. For
trunked ports, the filter is configured on the trunk master.
For the 4/256 SAN Director, the maximum number of filters is 12 per port, in any combination of standard
filters and user-defined filters, except for the FC4-48 port blade. For the FC4-48 port blade:
• Ports 0 through 15 have a maximum of 12 filter monitors per port.
• Ports 16 through 31 have a maximum of 6 filter monitors per port.
• Ports 32 through 47 do not have filter monitors.
For the FC4-16IP port blade, the maximum number of filters is 12 per port and 15 offsets per port.
The actual number of filters that can be configured on a port depends on the complexity of the filters. For
trunked ports, the filter is configured on the trunk master.
You can monitor filter-based performance using the
perfMonitorShow
command, as described in
” Displaying monitor counters ” on page 347. You can clear filter-based counters using the
perfMonitorClear
command, as described in ” Clearing monitor counters ” on page 349.
Adding standard filter-based monitors
Table 73 lists the commands for adding standard filter-based monitors to a port.
You cannot add identical filter monitors to the same port. Two filter monitors are considered to be identical
when they have the same:
• Filter monitor type
• Owner (telnet, Web Tools, etc.)
• Alias
Table 73 Commands to add filter-based monitors
Telnet command Description
perfAddReadMonitor
Count the number of SCSI Read commands
perfAddWriteMonitor
Count the number of SCSI Write commands
perfAddRwMonitor
Count the number of SCSI Read and Write commands
perfAddScsiMonitor
Count the number of SCSI traffic frames
perfAddIpMonitor
Count the number of IP traffic frames