Ultrium Cartridge - IBM TS3310 Maintenance Information

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Figure 2-12. Ultrium Cartridge
Type
Ultrium 3
Ultrium 2
Ultrium 1
The first set of tracks (sixteen for Ultrium 5, 4 and 3; eight for Ultrium 2 and 1) is
written from near the beginning of the tape to near the end of the tape. The head
then repositions to the next set of tracks for the return pass. This process continues
until all tracks are written and the cartridge is full, or until all data is written.
Figure 2-12 shows the IBM TotalStorage
its components. All LTO family data cartridges are similar.
1
Linear Tape-Open
Cartridge Memory
(LTO-CM) chip
2
Cartridge door
3
Leader pin
All generations of the IBM LTO Ultrium Data Cartridge contain a Linear
Tape-Open Cartridge Memory (LTO-CM) chip in the cartridge ( 1 in Figure 2-12).
The cartridge memory chip contains information about the cartridge and the tape,
such as the name of the manufacturer that created the tape, and statistical
performance and usage information (such as number of loads/unloads). The CM
reader uses a radio-frequency interface to read this information when the cartridge
is loaded into the drive. The cartridge statistics are updated just before the
cartridge is unloaded.
The cartridge door 2 protects the tape from contamination when the cartridge is
out of the drive. The tape is attached to a leader pin 3 , behind the door. When
the cartridge is inserted into the drive, a threading mechanism pulls the pin (and
Native Data Capacity
400 GB (800 GB at 2:1
compression)
200 GB (400 GB at 2:1
compression)
100 GB (200 GB at 2:1
compression)
®
LTO Ultrium 800 GB Data Cartridge and
4
Write-protect switch
5
Label area
6
Insertion guide
Recording Format
Reads and writes data on 704
tracks, sixteen tracks at a time
Reads and writes data on 512
tracks, eight tracks at a time
Reads and writes data on 384
tracks, eight tracks at a time
Chapter 2. Product Description
2-27