The following best practices apply when you use Backup Exec in clustered environments:

• To prevent possible loss of data in failover situations, Symantec recommends that you use the backup method Incremental - Using modified time when you configure backup jobs. Do not use the backup method, Incremental - Using archive bit (reset archive bit).

When you apply Backup Exec patches to clustered Backup Exec media servers or a central administration server, Symantec recommends the following to prevent possible data loss:

• Use the Microsoft Cluster Administrator to set each of the clustered Backup Exec services so that they do not automatically restart after a failure occurs. By doing that, you prevent the cluster from changing nodes in the event of a failure.

  After you finish applying the patches, you should reset each of the clustered Backup Exec services so that they restart after a failure occurs.