Capacity Scaling; Worm (Write Once, Read Many) Cartridge; Worm Media - Quantum LTO-8 HH SAS Technical Reference Manual

Chapter 5: Media

WORM (Write Once, Read Many) Cartridge

Quantum
Ultrium 12000 GB
Tape Drive Ultrium 8
Ultrium 7
Ultrium 6
Ultrium 5
Ultrium 4

Capacity Scaling

WORM (Write Once, Read Many) Cartridge

Worm Media

72
Quantum LTO Ultrium Data Cartridges
6000 GB 2500 GB
Ultrium 7 Ultrium 6
Read/Write Read/Write
Read/Write
To control the capacity of the cartridge (for example, to obtain a faster
seek time) issue the SCSI command
about this command, refer to the Quantum System Storage Ultrium
Tape Drive SCSI Reference.
Certain records retention and data security applications require a Write
Once, Read Many (WORM) method for storing data on tape. The LTO
Ultrium 4 and later drives enable WORM support when a WORM tape
cartridge is loaded into the drive.
Note: WORM format is not available for Ultrium 7 M8 format
cartridges.
Because standard read/write media are incompatible with the WORM
feature, a specially formatted WORM tape cartridge (see
page 73) is required. Each WORM cartridge has a unique, worldwide
cartridge identifier (WWCID), which comprises the unique CM chip serial
number and the unique tape media serial number.
1500 GB 800 GB
Ultrium 5 (Ultrium 4)
Read Only
Read/Write Read only
Read/Write Read/Write
Read/Write
SET CAPACITY.
QuantumLTO-8 HH SAS User's Guide
400 GB
(Ultrium 3)
Read only
Read/Write
For information
Figure 9 on