Granular Restart of Deep Archive Components

Deep Archive currently provides the dacli node start ALL, dacli node stop ALL and dacli node restart ALL commands for restarting the software across the cluster (array of tape libraries). The use of ALL makes the operation inherently cluster-wide.

For operational and maintenance purposes, Deep Archive should additionally provide a granular restart mechanism that allows administrators to restart an individual component without restarting the entire cluster.

The functionality should support, as applicable:

• a single Deep Archive software component/service;

a single TapeCloud node;

a single TapeCloud node within a specific cluster;

a single Tape Library;

other individually addressable infrastructure components where a restart can be safely performed.

The operation should preserve the existing high-availability behavior and, where supported by the architecture, allow the selected component to be restarted without service interruption or unnecessary impact on the other nodes, TapeCloud instances, or Tape Libraries.

The Web GUI should expose the same granular restart functionality. In particular, administrators should be able to select an individual system/node and initiate its restart from the corresponding management interface.

This capability is important for maintenance, troubleshooting, configuration changes and recovery operations where restarting the entire Deep Archive cluster is unnecessary and introduces avoidable operational impact.

The existing cluster-wide restart functionality (restart ALL) should remain available for cases where a complete cluster restart is required.