HP StorageWorks MSA 2/8 HP StorageWorks MIB V3.1.x/4.1.x Reference Guide (AA-R - Page 294

Fibre Alliance MIB Objects Description Indicates whether this connectivity unit is the principal unit within the group of fabric elements. If this value is not applicable, return unknown. Possible values are: unknown (1) no (2) yes (3) Note: If the switch is principal, this is set to 3 (yes), otherwise, it is set to 2 (no). connUnitNumSensors OID Description 1.3.6.1.3.94.1.6.1.14 Number of sensors (between 0 and maximum number of sensors) in the connUnitSensorTable. Note: Core Switch 2/64: This value is between 0 and 62. (The configurations for this switch vary too greatly to list them for each specific type of sensor.) SAN Switch 2/16: This value is between 0 and 13 (temperature = 6, fan = 3, power supply = 4). connUnitStatusChangeTime OID Description 1.3.6.1.3.94.1.6.1.15 The sysuptime timestamp (in centiseconds) at which the last status change occurred for any members of the set. In other words, this is the latest timestamp that connUnitStatus or connUnitPortStatus changed. connUnitConfigurationChangeTime OID Description 1.3.6.1.3.94.1.6.1.16 The sysuptime timestamp (in centiseconds) at which the last configuration change occurred for any members of the set. In other words, this is the latest timestamp of flash memory update.This represents a union of change information for connUnitConfigurationChangeTime 294 MIB Version 3.1.x/4.1.x Reference Guide