Verify that the following requirements are met for the NetBackup server and client software:

• The NetBackup server software is installed and operational on the NetBackup server. The NetBackup server platform can be any that NetBackup supports.

  See the NetBackup Installation Guide.

• The NetBackup client software is installed on the computer that has the databases you want to back up.

  Install the NetBackup client software on the computer that has the Exchange Server, any off-host clients, and all CAS servers that are used for mailbox databases. In an Exchange Server cluster, install the NetBackup client on each node in the cluster.

  The following PowerShell command can be used to change which CAS server is assigned to a database. Refer to Microsoft documentation for more information.

  Set-MailboxDatabase <Mailbox Database Name> -RpcClientAccessServer <ClientAccessServer or ClientAccessServerArrayID>

• If you want to take advantage of any new features that are included in NetBackup for Exchange in NetBackup 7.0.1, you must upgrade your NetBackup for Exchange clients. The media server and NetBackup for Exchange clients must be at the same NetBackup version.

• Make sure that you configure any backup media that the storage unit uses.

  The number of media volumes that are required depends on several things:

  • The devices used

  • The sizes of the databases that you want to back up

  • The amount of data that you want to archive

  • The size of your backups

  • The frequency of backups or archives

  See the NetBackup Administrator's Guide, Volume I.