Controlling the Behavior of the SnapDiff Feature

Use the bBackupFromSnapshotOnly additional setting to perform the back up operation from a snapshot.

You can use the SnapDiff feature on CIFS and NFS regular backups, on network share clients, for NetApp and Dell EMC Isilon/PowerScale clients.

You can control what happens in case of failure to create or access the snapshot. You can set the bBackupFromSnapshotOnly additional setting as follows:

• If bBackupFromSnapshotOnly is set to 1 (true), then failure in creating or accessing the snapshot results in skipping the backup paths.

• If bBackupFromSnapshotOnly is not set or set to 0, then failure in creating or accessing the snapshot results in accessing the live file path. For the Unix auto-mount operation, failure in creating or accessing the snapshot results in mounting the given backup path directly instead of mounting the snapshot’s path.

Procedure

• To the client computer, add the additional setting as shown in the following table.

  For instructions about adding additional settings from the CommCell Console, see Adding or Modifying Additional Settings from the CommCell Console.

  Property	Value
  Name	bBackupFromSnapshotOnly
  Category	FileSystemAgent
  Type	Boolean
  Value	1