S3 backup fails

S3 backup fails because of some ongoing configuration file updates.

Description
When at the same time, the S3 configuration is changed or any S3 account or bucket is created or deleted from any CES node, this issue might occur.
Error
 mms3 config backup /tmp
The following error message is displayed:
Error running tar command: /usr/bin/tar: ./accounts: file changed as we read
it
Failed to backup of IBM Storage Scale S3 configuration: exit status 1
Workaround
Wait for some time until the changes are completed, before proceeding with the backup.