Media; Logical Unit Number (Lun) Scanning; Location Coordinates And Element Addresses; Ultrium Data And Cleaning Cartridge - IBM TS2900 Setup, Operator, And Service Manual

Media

The TS2900 Tape Autoloader uses Ultrium Tape Cartridges that provide up to 800 GB
native capacity (up to 1600 GB with 2:1 hardware data compression) for Ultrium 4
tape drives, and up to 400 GB native capacity (up to 800 GB with 2:1 hardware
compression) for Ultrium 3 tape drives.
Table 1-4. Ultrium data and cleaning cartridge compatibility with Ultrium tape drive
Note: The TS2900 Tape Autoloader supports the Ultrium 3 (3572-3SH) and Ultrium 4
For more detailed information, see Chapter 5, "Media," on page 5-1.

Logical Unit Number (LUN) Scanning

The TS2900 Tape Autoloader uses a single SCSI ID and dual LUNs to control the tape
drive (LUN 0) and library accessor (LUN 1). The library requires a Host Bus Adapter
(HBA) that supports LUN scanning. If it is not enabled, your host system will not
scan beyond LUN 0 and will fail to detect the library. It will only see the tape drive.
Important: Some HBAs, such as RAID controllers, do not support LUN scanning.

Location Coordinates and Element Addresses

The TS2900 Tape Autoloader incorporates IBM's patented high-density (HD) slot
technology, which allows multiple cartridges to be stored in a tiered architecture. The
depth of a cartridge location in a high-density slot is known as a tier. High-density
slots are designed to contain multiple cartridges in Tiers 1 and 2.
Note: Each column has a spring-loaded mechanism that pushes a tape cartridge into
1-8
TS2900 Tape Autoloader Setup, Operator, and Service Guide
IBM Ultrium
800 GB

Tape Drive

(Ultrium 4)
Ultrium 4 Read/Write
Ultrium 3
Ultrium 2
Ultrium 1
(3572-4SH) Tape Drives only.
Tier 1 when it is the only cartridge in that column. A single cartridge in a
column takes on the Tier 2 element address even though it is physically
located in Tier 1.
IBM LTO Ultrium Data Cartridges
400 GB 200GB
(Ultrium 3) (Ultrium 2)
Read/Write Read only
Read/Write Read/Write
Read/Write
100GB
(Ultrium 1)
Read only
Read/Write
Read/Write