Cartridge compatibility, Write once, read many (worm) cartridges, Worm media – Dell PowerVault TL1000 User Manual

Page 111: Nominal cartridge life: load/unload cycles

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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 in Figure 5-1 on page 5-1 prevents data from being
written to the tape cartridge. For more information, see “Write-Protect switch” on
page 5-6.

The label area ( 5 in Figure 5-1 on page 5-1) provides a location to place a label. .

The insertion guide ( 6 inFigure 5-1 on page 5-1) is a large, notched area that
prevents the cartridge from being inserted incorrectly.

Table 5-3. Nominal cartridge life: Load/unload cycles

Type

Load/Unload Cycles

Ultrium 6

20,000 (20K)

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 5-4. Ultrium data cartridge compatibility with Ultrium tape drive

Ultrium

Tape

Drive

LTO Ultrium Data Cartridges

2500 GB

Ultrium 6

1500 GB

Ultrium 5

800 GB

Ultrium 4

400 GB

Ultrium 3

200 GB

Ultrium 2

100 GB

Ultrium 1

Ultrium
6

Read/Write Read/Write

Read only

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

Ultrium
1

Read/Write

Write once, read many (WORM) cartridges

Certain Records retention and data security applications require a write once, read
many (WORM) method for storing data on tape. The LTO Ultrium 6, Ultrium 5,
and Ultrium 4 drives enable WORM support when a WORM tape cartridge is
loaded into the drive.

WORM media

Because standard read/write media are incompatible with the WORM feature, a
specially formatted WORM tape cartridge (see Figure 5-2 on page 5-4) is required.

Chapter 5. Media

5-3

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