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 In the Navigation pane, click Manage Devices.  | 
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 If the Snapshot Array Manager is offline, click Mark Online to bring it back online.  | 
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 If the Snapshot Array Manager is online, click Mark Offline to take it offline.  | 
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This section includes the following topics:
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 1   | 
 In the Navigation pane, click Manage Devices.  | 
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 Device is unavailable. NetVault Backup is unable to detect the device.  | 
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 On the Tape Library Management page, you can view the following information:  | 
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 Library details: This area shows the following information:  | 
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 Name: Library name.  | 
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 Vendor: Vendor name.  | 
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 Product: Library type.  | 
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 Drives: Number of drives.  | 
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 Slots: Number of slots.  | 
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 Client: Client to which the device is attached.  | 
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 Status: Device status (online or offline).  | 
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 Activity: Device or door status.  | 
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 Door: Door status (open or closed).  | 
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 Drives table: The Drives table lists all tape drives for the library. It shows the following information:  | 
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 Status icon: Drive status icon.  | 
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 Bay: Drive bay number.  | 
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 Name: Drive name.  | 
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 Status: Drive status (online or offline).  | 
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 Activity: Idle or writing.  | 
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 Contents: Label of the tape loaded in the drive. If the drive does not contain any tape, the column shows “Unloaded.”   |