Incremental backup notes for failover clusters

Summary

If Failover Cluster incremental backup is not done, ActiveImage Protector uses $AIPMAP to track bitmap information, including machine ID. If this data is missing, a reconcile or full backup is initiated.

In some situations, a reconcile or full backup has taken place.  
1) Failover occurs.
2) Machine ID saved in the AIPMAP will change.
3) When the reconcile function is turned off, a base backup is performed.
* If the reconcile feature is enabled, a reconcile backup is performed.
4) A second incremental backup is done.

This is normal.

The cluster in which this occurs.
– MSCS
– MSFC
– NEC EXPRESSCLUSTER X
– EMC AutoStart

Related article:

The increment image fails mount

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