HP StorageWorks 8/80 HP StorageWorks Fabric OS 6.1.x administrator guide (5697 - Page 330

NOTE: The command examples in this chapter use the slot/port syntax required by 4/256 SAN Director and DC Directors. For the 4/8 SAN Switch, 4/16 SAN Switch, SAN Switch 4/32, 4/64 SAN Switch, SAN Switch 4/32B, 8/8 SAN Switch, 8/24 SAN Switch, 8/40 SAN Switch, 8/80 SAN Switch and the 400 Multi-protocol Router, use only the port number where needed in the commands. End-to-end performance monitoring End-to-end performance monitoring counts the number of words and CRC errors in Fibre Channel frames for a specified Source ID (SID) and Destination ID (DID) pair. An end-to-end performance monitor includes these counts: • RX_COUNT (words in frames received at the port) • TX_COUNT (words in frames transmitted from the port) • CRC_COUNT (frames with CRC errors received at or transmitted from the port) To enable end-to-end performance monitoring, you must configure an end-to-end monitor on a port, specifying the SID-DID pair (in hexadecimal). The monitor counts only those frames with matching SID and DID. Each SID or DID has the following three fields. • Domain ID (DD) • Area ID (AA) • AL_PA (PP) For example, the SID 0x118a0f denotes DD 0x11, AA 0x8a, and AL_PA 0x0f. You can monitor end-to-end performance using the perfMonitorShow command, as described in "Displaying monitor counters" on page 341. You can clear end-to-end counters using the perfMonitorClear command, as described in "Clearing monitor counters" on page 344. End-to-end monitors 4/8 SAN Switch and 4/16 SAN Switch models allow up to eight end-to-end monitors. The SAN Switch 4/32, 4/64 SAN Switch, SAN Switch 4/32B, 400 Multi-protocol Router, and 4/256 SAN Director models allow up to 256 end-to-end monitors shared by all ports in the same ASIC chip. The DC Director allows up to 1024 end-to-end monitors. (The number of interswitch links configured on the switch affects the amount of resources available for end-to-end monitors.) The FC4-48 blade allows end-to-end monitors on all 48 ports. For the FC4-16IP blade, end-to-end monitors are supported on the FC ports (ports 0 through 7), but not on the GbE ports. You cannot add end-to-end monitors to interswitch links. Identical end-to-end monitors cannot be added to the same port. Two end-to-end monitors are considered identical if they have the same SID and DID values after applying the end-to-end mask. The monitor count is qualified using either of the following conditions: • For frames received at the port with the end-to-end monitor installed, the frame SID is the same as "SourceID" and the frame DID is the same as "DestID". The RX_COUNT and CRC_COUNT are updated accordingly. • For frames transmitted from the port with the end-to-end monitor installed, the frame DID is the same as "SourceID" and the frame SID is the same as "DestID". The TX_COUNT and CRC_COUNT are updated accordingly. NOTE: The relationship between the area ID for a port and the port number depends on the PID format used by the fabric. See "Configuring the PID Format" on page 489 for more information. 330 Administering Advanced Performance Monitoring