Dell PowerVault TL2000, Руководство пользователя

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Type Native Data Capacity Recording Format
Ultrium 5 1500 GB (3000 GB at 2:1
compression) Reads and writes data on 1280
tracks, sixteen tracks at a time
Ultrium 4 800 GB (1600 GB at 2:1
compression) Reads and writes data on 896
tracks, sixteen tracks at a time.
Ultrium 3 400 GB (800 GB at 2:1
compression) Reads and writes data on 704
tracks, sixteen tracks at a time
Ultrium 2 200 GB (400 GB at 2:1
compression) Reads and writes data on 512
tracks, eight tracks at a time
Ultrium 1 100 GB (200 GB at 2:1
compression) Reads and writes data on 384
tracks, eight tracks at a time
The first set of tracks (sixteen for Ultrium 5, 4 and 3) 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.
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
tape) out of the cartridge, across the drive head, and onto a non-removable take-up
reel. The head can then read or write data from or to the tape.
The write-protect switch
4
prevents data from being written to the tape
cartridge. For more information, see “Write-Protect Switch” on page 6-6.
The label area
5
provides a location to place a label. .
The insertion guide
6
is a large, notched area that prevents the cartridge from
being inserted incorrectly.
Table 6-1. Nominal Cartridge Life: Load/Unload Cycles
Type Load/Unload Cycles
Ultrium 5 20,000 (20k)
Ultrium 4 20,000 (20k)
Ultrium 3 20,000 (20k)
Ultrium 2 10,000 (10k)
Ultrium 1 5000 (5k)
Cartridge Compatibility
Table 6-2. Ultrium data cartridge compatibility with Ultrium tape drive
Tape Drive
LTO Ultrium Data Cartridges
1500 GB
(Ultrium 5)
800 GB
(Ultrium 4)
400 GB
(Ultrium 3)
200GB
(Ultrium 2)
100GB
(Ultrium 1)
Ultrium 5 Read/Write Read/Write Read only
Ultrium 4 Read/Write Read/Write Read only
Ultrium 3 Read/Write Read/Write Read only
Ultrium 2 Read/Write Read/Write
6-2
Dell PowerVault TL2000 Tape Library and TL4000 Tape Library User's Guide