Virtual TapeServer 6.04.01 Installation Guide

Introduction | 5
EMS — Event Management Service, which starts the EMS distributor on the
NonStop server by issuing a Tandem Advanced Command Language (TACL)
command. The distributor notifies the VTS EMS service when an EMS message is
posted on the NonStop server.
VTS — Virtual TapeServer, which refers to the Virtual TapeServer engine and
provides the core of VTS functionality.
SecureVTS
If SecureVTS is enabled, this section displays its status.
Free Space
Optional section that is shown by default. When enabled (by setting the
free_space_status parameter in the VTS configuration file), this section provides the
following information:
Vault/Pool: Displays all vaults and, after you click a vault, all pools in the vault
Size: Displays the total size of the vault
Available: Displays the remaining space in a vault
Connections
Displays all current virtual tape connections. The following information is listed:
host — The name of the virtual tape drive
type — The type of drive that the virtual tape drive is emulating
command — The last command sent to the tape drive
status — The status of the last command executed by the tape drive
kb/sec — The amount of data that is being transferred to the tape drive per second
c/ratio — The compression ratio, if compression is enabled
Options
Buttons to change the system refresh rate. By default, the system automatically
refreshes the page every 15 seconds. The following buttons are available:
Refresh Now: Refreshes information on the page immediately.
Stop Refreshing: Stops refreshing the page and removes the Stop Refreshing and
Change Rate buttons. After you click this button, the Auto Refresh button is
displayed.
Auto Refresh: Instructs VTS to automatically refresh the page (according to the
refresh rate). After you click this button, the Stop Refreshing and Change Rate
buttons are displayed.
Change Rate: Sets a refresh rate.
Virtual Media pages
Most tasks are performed on the Virtual Media page, including managing the following:
• Cartridges (virtual tapes)
•Pools
• Mounts and locks