Redundancy, Synchronization, and Failover

3.5Datasync Status Sensor

A sensor named “Datasync Status” exists in order to make the Datasync state information available to the user. This sensor tracks the status of the Datasync module and will make its status available through the various CMM interfaces. This sensor is used to query the data synchronization states, and log SEL events for initial synchronization complete event. It is a discrete OEM sensor with status bits representing the state of different parts of the Datasync module.

Note: The Datasync Status sensor can only be queried through the active CMM.

3.5.1Sensor bitmap

When the Datasync starts the first time through in a dual CMM system and whenever the CMM changes between Active and Standby, the status bits are all cleared to 0x0000.

Bit 0 (Running) is set when the datasync module is active.

Bit 1 (P1Done) is set when the priority 1 data syncs are done, and cleared when priority 1 data needs to be synced.

Bit 2 (P2Done) is set when the priority 2 data syncs are done, and cleared when a priority 2 data needs to be synced.

Bit 3 (InitSyncDone) is set when both priority 1 and priority 2 data syncs are done, and stays set (latches) until the CMM changes between Active and Standby, or looses contact with the partner CMM.

Bit 4 (SyncError) is set if an error was detected, and cleared when no data items have errors.

3.5.2Event IDs

The “Datasync Status” sensor will use event ids 0x420 to 0x42f. The following new event ids are used to log various events for these requirements. These event ID’s can be used to associated scripts with the respective events.

Event

Event ID

 

 

Initial Data Synchronization complete

0x420 (1056)

 

 

3.5.3Querying the Datasync Status

The status of the data synch sensor can be queried using the following CLI command:

cmmget –l cmm –t “Datasync Status” –d current

Output of the command is as follows:

Initial State:

The current value is 0x0001

Initial Data Synchronization is not complete.

There is Priority 1 data to sync.

MPCMM0001 Chassis Management Module Software Technical Product Specification

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Intel MPCMM0001 manual Datasync Status Sensor, Sensor bitmap, Event IDs, Querying the Datasync Status