Meaning of the nas alarm "Auto-adjusted replication blocksize for '<name>' up to <size>."

Document ID : KB000121724
Last Modified Date : 29/11/2018
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Introduction:
Is the following nas alarm something to be concerned about:

Auto-adjusted replication blocksize for '<name>' up to <size>.
Question:
Is the following nas alarm something to be concerned about:

Auto-adjusted replication blocksize for '<name>' up to <size>.
Environment:
UIM 8.51
Answer:
This alarm will be sent by the nas when the replication post event fails (due to a timeout/connection failure etc.). This might, as the alarm suggests, be due to a slow transfer rate but also other issues, most often related to the network.

As it sends this alarm, it will also write a more verbose description of the error in the log - It follows this general format:

replPostQueue '<name>' auto-adjusting blocksize

As with all non-volatile alarms, you may set up the NAS to filter them out but it may be worth taking a look at the nas log when set to loglevel 3 first.
You can set up an auto operator (or preprocessing rule) to silently drop all messages from the nas probe matching "Auto-adjusted replication blocksize".