HP StorageWorks 8/80 HP StorageWorks Fabric OS 6.1.x administrator guide (5697 - Page 336

You cannot add identical filter monitors to the same port. Two filter monitors are considered to be identical when they have the same values for the following items. • Filter monitor type • Owner (telnet, Web Tools, etc.) • Alias The following example adds filter-based monitors to slot 1, port 2 and displays the results: switch:admin> perfaddreadmonitor 1/2 SCSI Read filter monitor #0 added switch:admin> perfaddwritemonitor 1/2 SCSI Write filter monitor #1 added switch:admin> perfaddrwmonitor 1/2 SCSI Read/Write filter monitor #2 added switch:admin> perfaddscsimonitor 1/2 SCSI traffic frame monitor #3 added switch:admin> perfaddipmonitor 1/2 IP traffic frame monitor #4 added switch:admin> perfmonitorshow --class FLT 1/2 There are 5 filter-based monitors defined on port 2. KEY ALIAS OWNER_APP FRAME_COUNT OWNER_IP_ADDR 0 SCSI Read TELNET 0x0000000000000000 N/A 1 SCSI Write TELNET 0x0000000000000000 N/A 2 SCSI R/W TELNET 0x0000000000000000 N/A 3 SCSI Frame TELNET 0x0000000000000000 N/A 4 IP Frame TELNET 0x0000000000000000 N/A Adding custom filter-based monitors In addition to the standard filters-read, write, read/write, SCSI frame and IP frame-you can create custom filters to gather statistics that fit your needs. To define a custom filter, use the perfAddUserMonitor command. With this command, you must specify a series of offsets, masks, and values. For all transmitted frames, the switch performs these tasks: • Locates the byte found in the frame at the specified offset. • Applies the mask to the byte found in the frame. • Compares the value with the given values in the perfAddUserMonitor command. • Increments the filter counter if a match is found. To illustrate, if you were to enter: perfaddusermonitor 30 "4, 0xff, 0x06; 6, 0xff, 0x02; 7, 0xff, 0xd4" The operation would be successful because offset 4 is a canned monitor and has a resource already reserved for it. Offsets 6 and 7 would exhaust all unique filter monitor resources on port 30. Therefore, any additional filter monitors created on port 30 would have to be canned filter monitors. • SAN Switch 4/32, 4/64 SAN Switch, SAN Switch 4/32B, 400 Multi-protocol Router, 4/256 SAN Director, and DC Director models Up to 15 different offsets per port (14 offsets when FICON Management Server mode, or fmsmode, is enabled). • 4/8 SAN Switch, 4/16 SAN Switch and Brocade 4Gb SAN Switch for HP p-Class BladeSystem models Up to 7 different offsets per port (6 offsets when fmsmode is enabled). 336 Administering Advanced Performance Monitoring