HP Compaq StorageWorks TL881 DLT Mini-Library - Manual (Page 53)

Operation 2-27
Inserting and Removing Cartridges
When inserting cartridges, be sure that the slot you intend to use is not already
reserved in the system map for a cartridge in a drive. The best way to avoid
conflicts is to unload all drives, either through your host computer software or
by using the Load/Unload command on the Main Menu, described in the
previous section.
The tape magazine must be removed from the module in order to insert or
remove cartridges. To insert or remove the magazine, the following conditions
must be met.
The Magazine Security Lock (Figure 2–34) must be unlocked, using the key
supplied with the module. When the Magazine Security Lock is locked, the
Unlock/Open button has no effect. If the module is installed in a reasonably
secure environment, you may elect to leave the Magazine Security Lock in the
unlocked position.
Media locking on the Security Menu must be disabled. See Figure 2–20.
The host computer must allow medium removal. The host computer can
enable or disable the
Unlock/Open button using the SCSI Prevent Allow
Medium Removal command. When you press the Unlock/Open button, the
message ‘Magazine Locked” will be displayed.
The Expansion Unit must be ready, and not actually executing a command.
IMPORTANT: When you enter the Menu Mode, the Ready light goes out. The magazine
cannot be inserted or removed unless the Ready light is on. To remove the magazine
when a failure prevents the Ready light from illuminating, refer to the section entitled
Emergency Magazine Removal.