What is the recommended command that instructs the Dell Avamar server to redistribute backup data from the most full nodes to the least full nodes?

The avmaint config balancemin= command sets the minimum percentage difference in utilization between the most-full and least-full storage nodes required to trigger data balancing. The default value is typically 5%. By lowering this threshold to a small value like 2, an administrator instructs the system to initiate balancing even with a minor imbalance, effectively forcing a redistribution of data. The --avamaronly flag ensures the command applies only to the Avamar server processes.

B. balancemin=0 is not recommended as it would cause the balancer to run constantly, consuming system resources unnecessarily.
C. balancemin=1 is more aggressive than necessary and could also lead to excessive balancing activity for minimal gain.
D. balancemin=100 would effectively disable data balancing, as it is impossible for nodes to have a 100% utilization difference.

1. Dell Avamar 19.7 Administration Guide, Page 411, "avmaint config command". The guide describes the balancemin parameter's function in controlling the data balancing threshold.

2. Dell Technologies Knowledge Base Article 000019391, "Avamar: How to check and start GSAN data balancing". This article discusses using avmaint config balancemin to manage and initiate data balancing.