12,7 mm - 384-Track Magnetic Tape Cartridges
- Ultrium-1 Format
This Ecma Standard specifies the physical and magnetic characteristics
of magnetictape cartridges, using magnetic tape 12,65 mm
wide so as to provide physical interchange of such cartridges
between drives. It also specifies the quality of the recorded
signals, the recording method and the recorded format, thereby
allowing data interchange between drives by means of such cartridges.
The format supports variable length Logical Records, high speed
search, and the use of a registered algorithm for data compression.
This Ecma Standard specifies four types of cartridges depending
on the length of tape contained in the case. These four types are
referred to as Type A, Type B, Type C and Type D; their nominal
capacity is 100 Gbytes, 50 Gbytes, 30 Gbytes and 10 Gbytes,
One Gbyte contains 1 000 000 000 bytes.
Information interchange between systems also requires, at a minimum,
agreement between the interchange parties upon the interchange code(s)
and the specification of the structure and labeling of the information
on the interchanged cartridge. This Ecma Standard shall be
used only in conjunction with ECMA-321
Together with a standard for volume and file structure, e.g. Standard
, this document provides for full
data interchange between data processing systems.
The following file can be freely downloaded:
||2 037 244
||Acrobat (r) PDF file
This Ecma publication is also approved as ISO/IEC 22050.