It is highly advisable to get the Avamar server shutdown by support. And again get it checked after the power on process is complete.

Gautam rightly said, get Avamar Support involved, it is best thing you can have. Please make sure the following are done.

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1. Ensure that the command "status.dpn" has "OK" status for Checkpoint, GC, HFSCheck.

2. Ensure that the command "status.dpn" reports all nodes Online.

3. Ensure that the checkpoint, GC and HFSCheck are recent.

4. On the avamar admin GUI, ensure that there are no "Unacknowledged events".

5. On the avamar admin GUI, ensure that System state is healthy. Alternatively check this on Avamar Enterprise manager well.

6. Run the "proactive_check1.pl" under "/home/admin/proactive_check" to get the complete health of Avamar server. Check with EMC support for latest script.

7. Run "dpnctl status" and Ensure that all the services are up and running.

8. Ensure that there is latest valid check point available. Run "cplist" command to check this.

9. No backups are running.

10. Server should not be busy and having Full Access.

Restarting an Avamar system is actually a standard administrative procedure intended to be carried out by customers.

You can find a knowledge article on the topic here

• https://support.emc.com/kb/470486 - (Customer) Instructions to safely shut down and restart an Avamar grid during maintenance

Support can help in the event you experience problems although my understanding is that, in theory, opening an SR to ask that EMC shutdown and restart a healthy Avamar system would technically require a Professional Services engagement.