HP A7533A HP StorageWorks Fabric OS 5.2.x administrator guide (5697-0014, May - Page 317
Monitoring filter-based performance, Adding standard filter-based monitors
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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, 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, 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. At the time of this document's release, HP does not support the FC4-16IP iSCSI blade. Consult http://www.hp.com for the latest, updated information. 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 321. You can clear filter-based counters using the perfMonitorClear command, as described in "Clearing monitor counters" on page 323. Adding standard filter-based monitors Table 65 lists the commands for adding standard filter-based monitors to a port. Table 65 Commands to add filter-based monitors Telnet command Description perfAddReadMonitor perfAddWriteMonitor perfAddRwMonitor perfAddScsiMonitor perfAddIpMonitor Count the number of SCSI Read commands Count the number of SCSI Write commands Count the number of SCSI Read and Write commands Count the number of SCSI traffic frames Count the number of IP traffic frames 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 Fabric OS 5.2.x administrator guide 317