Dell PowerConnect Brocade M6505 Brocade 7.1.0 Fabric Watch Administrator's Gui - Page 84

FOP_Port and FCU_Port subclass setting guidelines, Areas: Link Failure Count

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7 portThConfig command procedures TABLE 17 Area Utilization Link reset E_Port class default settings (Continued) Description Default threshold settings The percent of utilization for the port at the time of the last poll. Monitors the number of link resets sent by a given port (LR-Out) and received on a given port (LR-In). Unit: Errors Time Base: minute Low: 0 High: 100 Buffer: 0 Unit: Errors Time Base: minute Low: 0 High: 500 Buffer: 50 Default alarm settings Threshold state Below: 0 Above: 0 Informative Informative Below: 0 Above: 0 Informative Out_of_range FOP_Port and FCU_Port subclass setting guidelines FOP_Port and FCU_Port guidelines for the areas listed below represent a more aggressive approach in most areas. NOTE The settings in these subclasses include settings for the host bus adapter (HBA) ports as well as the storage ports. • Areas: Link Failure Count, Loss of Synchronization Count Change the default high boundary from 500 to 15 (per minute) for Link Failure Count and from 500 to 45 (per minute) for Loss of Synchronization Count. Leave the Buffer setting to 0 (the default). Set the alarm configurations to send alerts to both the error log and SNMP. These settings are the same for an HBA port or a storage port. • Area: Loss of Signal Count Unlike the other areas, take a conservative approach for the Loss of Signal Count area. Change the default high boundary from 5 to 45 (per minute) and set the alarm configuration to send alerts to both the error log and SNMP. • Areas: Invalid Transmission Words, Invalid CRC Count For these two classes, the high boundary settings are split. For Host devices, keep the defaults of 1000 (per minute) and buffer of 100. For storage devices, tighten the boundaries substantially: change the default high boundary for Invalid Transmission Words to 80, and change the high boundary for Invalid CRC Count to 40 (per minute). Hosts and HBAs reboot so do not set alerts for these devices. Storage devices, however, should not be rebooting, so you should set the alarm to alert more frequently. Excessive invalid words or CRCs on F/FL_ports lead to fabric congestion and possible frame drops if left unchecked; therefore, set the alarm to fence the port. See "Port type: E_Port, FOP_Port, or FCU_Port" on page 68 for instructions. In addition, set the alarm configurations to send alerts to both the error log and SNMP. 64 Fabric Watch Administrator's Guide 53-1002752-01

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64
Fabric Watch Administrator’s Guide
53-1002752-01
portThConfig command procedures
7
FOP_Port and FCU_Port subclass setting guidelines
FOP_Port and FCU_Port guidelines for the areas listed below represent a more aggressive
approach in most areas.
NOTE
The settings in these subclasses include settings for the host bus adapter (HBA) ports as well as the
storage ports.
•
Areas: Link Failure Count, Loss of Synchronization Count
Change the default high boundary from 500 to 15 (per minute) for Link Failure Count and from
500 to 45 (per minute) for Loss of Synchronization Count. Leave the Buffer setting to 0 (the
default). Set the alarm configurations to send alerts to both the error log and SNMP. These
settings are the same for an HBA port or a storage port.
•
Area: Loss of Signal Count
Unlike the other areas, take a conservative approach for the Loss of Signal Count area. Change
the default high boundary from 5 to 45 (per minute) and set the alarm configuration to send
alerts to both the error log and SNMP.
•
Areas: Invalid Transmission Words, Invalid CRC Count
For these two classes, the high boundary settings are split. For Host devices, keep the defaults
of 1000 (per minute) and buffer of 100. For storage devices, tighten the boundaries
substantially: change the default high boundary for Invalid Transmission Words to 80, and
change the high boundary for Invalid CRC Count to 40 (per minute).
Hosts and HBAs reboot so do not set alerts for these devices. Storage devices, however, should
not be rebooting, so you should set the alarm to alert more frequently.
Excessive invalid words or CRCs on F/FL_ports lead to fabric congestion and possible frame
drops if left unchecked; therefore, set the alarm to fence the port. See
“Port type: E_Port,
FOP_Port, or FCU_Port”
on page 68 for instructions. In addition, set the alarm configurations to
send alerts to both the error log and SNMP.
Utilization
The percent of
utilization for the
port at the time of
the last poll.
Unit: Errors
Time Base: minute
Low: 0
High: 100
Buffer: 0
Below: 0
Above: 0
Informative
Informative
Link reset
Monitors the
number of link
resets sent by a
given port (LR-Out)
and received on a
given port (LR-In).
Unit: Errors
Time Base: minute
Low: 0
High: 500
Buffer: 50
Below: 0
Above: 0
Informative
Out_of_range
TABLE 17
E_Port class default settings (Continued)
Area
Description
Default threshold
settings
Default alarm settings
Threshold state