HP StorageWorks 8/80 Brocade Fabric Watch Administrator's Guide v6.2.0 (53-100 - Page 37

Performance Monitor class areas, Port class areas, TABLE 5

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Areas 3 Performance Monitor class areas Table 5 lists Product Name areas in the Performance Monitor class and describes each area. TABLE 5 Performance Monitor class areas Area Indicates Customer Define Values for customer-defined performance areas. For more information on this area, see the Fabric OS Command Reference. Invalid Cyclic Redundancy Checks (CRC) Errors have been detected in the Fibre Channel frame. Invalid CRC messages occur when the number of CRC errors in Fibre Channel frames for specific source ID (S_ID) and destination ID (D_ID) pairs change. These messages can also be caused by dirty or aging equipment and temperature fluctuations. Receive Performance The percentage of word frames traveling from the configured S_ID to the D_ID exceeds the configured thresholds. Transmit Performance The percentage of word frames traveling from the configured D_ID to the S_ID; user configuration triggers these messages, so you can use the Transmit Performance area to tune your network. Port class areas Table 6 lists and describes the Product Name areas in the port class. NOTE Fabric Watch monitors and reports the status of physical and virtual FC ports. Physical GbE ports and ISCSI ports are not monitored and are not included in the Port Class area. TABLE 6 Area Port class areas Indicates Invalid Cyclic Redundancy Checks (CRCs) A frame is invalid and cannot be transmitted. Invalid CRCs can represent noise on the network. Such frames are recoverable by retransmission. Invalid CRCs indicate a potential hardware problem. These errors occur mostly in aging fabrics. Invalid Transmission Word A word did not transmit successfully. Invalid word messages usually indicate a hardware problem. Link Failure Count A link has lost the signal. Both physical and hardware problems can cause link failures. Link failures frequently occur because of synchronization loss. Check for concurrent loss of synchronization errors and, if applicable, troubleshoot those errors. Link failures also occur because of hardware failures. Loss of Signal Count The number of times that a signal loss occurs in a port. Signal loss indicates that no data is moving through the port. A loss of signal usually indicates a hardware problem. Loss of Synchronization (Sync) Two devices failed to communicate at the same speed. Synchronization losses Count are always accompanied by link failure. Loss of synchronization errors frequently occur because of a faulty SFP or cable. Packet Loss The number of packets routed through a port exceeds the port bandwidth, specific to the E_Port. Primitive Sequence Protocol A CRC sum disparity. Occasionally, these errors occur because of software Error glitches. Persistent errors occur because of hardware problems. Receive (RX) Performance The percentage of maximum bandwidth consumed in packet receipts. Fabric Watch Administrator's Guide 15 53-1001188-01

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Fabric Watch Administrator’s Guide
15
53-1001188-01
Areas
3
Performance Monitor class areas
Table 5
lists Product Name areas in the Performance Monitor class and describes each area.
Port class areas
Table 6
lists and describes the Product Name areas in the port class.
NOTE
Fabric Watch monitors and reports the status of physical and virtual FC ports. Physical GbE ports
and ISCSI ports are not monitored and are not included in the Port Class area.
TABLE 5
Performance Monitor class areas
Area
Indicates
Customer Define
Values for customer-defined performance areas. For more information on this area,
see the
Fabric OS Command Reference
.
Invalid Cyclic Redundancy
Checks (CRC)
Errors have been detected in the Fibre Channel frame. Invalid CRC messages occur
when the number of CRC errors in Fibre Channel frames for specific source ID (S_ID)
and destination ID (D_ID) pairs change. These messages can also be caused by dirty
or aging equipment and temperature fluctuations.
Receive Performance
The percentage of word frames traveling from the configured S_ID to the D_ID exceeds
the configured thresholds.
Transmit Performance
The percentage of word frames traveling from the configured D_ID to the S_ID; user
configuration triggers these messages, so you can use the Transmit Performance area
to tune your network.
TABLE 6
Port class areas
Area
Indicates
Invalid Cyclic Redundancy
Checks (CRCs)
A frame is invalid and cannot be transmitted. Invalid CRCs can represent noise on
the network. Such frames are recoverable by retransmission. Invalid CRCs
indicate a potential hardware problem. These errors occur mostly in aging fabrics.
Invalid Transmission Word
A word did not transmit successfully. Invalid word messages usually indicate a
hardware problem.
Link Failure Count
A link has lost the signal. Both physical and hardware problems can cause link
failures. Link failures frequently occur because of synchronization loss. Check for
concurrent loss of synchronization errors and, if applicable, troubleshoot those
errors. Link failures also occur because of hardware failures.
Loss of Signal Count
The number of times that a signal loss occurs in a port. Signal loss indicates that
no data is moving through the port. A loss of signal usually indicates a hardware
problem.
Loss of Synchronization (Sync)
Count
Two devices failed to communicate at the same speed. Synchronization losses
are always accompanied by link failure. Loss of synchronization errors frequently
occur because of a faulty SFP or cable.
Packet Loss
The number of packets routed through a port exceeds the port bandwidth,
specific to the E_Port.
Primitive Sequence Protocol
Error
A CRC sum disparity. Occasionally, these errors occur because of software
glitches. Persistent errors occur because of hardware problems.
Receive (RX) Performance
The percentage of maximum bandwidth consumed in packet receipts.