About this task
Note: Always press the PAUSE key before you power off the TS3500 Tape Library. If you 
power off before pausing, the library may take longer to go online after the next power on.
Use the following steps to power off the TS3500 Tape Library after normal operation and not 
during an emergency:
Procedure
1. Ensure that the host application has removed cartridges from all drives and that the 
library is varied offline from the host (if the host is attached).
2. Press the PAUSE key on the display. The library displays the message If you open 
the door the library will go Not Ready and any remaining jobs in the work 
queue may fail. Press ENTER to continue.
3. Press ENTER. The message PAUSE in Progress displays. The library parks the 
cartridge accessor in the base frame and displays the message The library is now 
paused. Normal operations will resume in 30 seconds.
4. Move the library power switch to O. If you do not power off within 30 seconds, the 
Activity screen displays again.
Parent topic: Operating procedures
Inserting data or scratch cartridges
This section describes the cartridges that are used by the TS3500 Tape Library and 
introduces two ways to insert data and scratch cartridges.
Notes: 
• Management and handling of media cartridges is a customer function and 
responsibility.
• Never insert any type of cartridge into service bays.
After you install the TS3500 Tape Library, you can insert cartridges into it. The following 
types of cartridges can be inserted: 
Data or scratch cartridge
A tape cartridge that is designed to receive information recorded to it by a tape 
drive. A scratch cartridge is a data cartridge whose tape no longer contains useful 
information and which can be overwritten. To ensure that your tape library conforms 
to IBM's specifications for reliability, use only the IBM® LTO Ultrium Data Cartridge