Internal disk, tape, CD-ROM, DVD-RAM, DVD-ROM storage 393
Draft Document for Review October 18, 2004 5486IntStor.fm
However, the tape compression used by the #6381/#6481 2.5 GB and #4482,
#4582, #6382, and #6482 4 GB tape devices is not compatible with the
compaction on the #4486, #4586, #6386, and #6486 25 GB tape devices.
Uncompacted or uncompressed tapes are compatible within each device’s
format limitations.
This tape is not compatible with System/36 tape devices. For read and write
compatibility, refer to the internal tape read/write compatibilities table 391.
30 GB ¼-inch Cartridge Tape Device Technology
The 30 GB ¼-inch Cartridge Tape Device technology may be used for
save/restore, alternate IPL, program distribution, migration, and ¼-inch cartridge
tape exchange. The 30 GB tape technology provides 30 GB of storage capacity.
With data compression, up to 60 GB can be stored per cartridge, providing
unattended backup capability for a broad range of medium sized iSeries servers.
The unit can store data at a rate of 4 MB per second (8 Mb per second with two
to one (2:1) compression). It writes 30 GB with IBM SLR60-30GB Data Cartridge
(up to 60 GB with compression in SLR60 format), 25 GB with IBM MLR3-25GB
Data Cartridge (up to 50 GB with compression in MLR3 format), 16 GB with IBM
MLR1-16GB Data Cartridge (up to 32 GB with compression in QIC5010 format),
and 2 GB with IBM MLR1-2GB Data Cartridge (up to 4 GB with compression in
QIC5010 format). The unit reads 4 GB with SLR5-4GB Data Cartridge (QIC4GB
format) and 2.5 GB with IBM DC9250 Data Cartridge (QIC2GB format).
This tape is not compatible with System/36 tape devices. For read and write
compatibility, refer to the internal tape read/write compatibilities table 390.
50 GB ¼-inch Cartridge Tape Device Technology
The 50 GB ¼-inch Cartridge Tape Device technology may be used for
save/restore, alternate IPL, program distribution, migration, and ¼-inch cartridge
tape exchange. The 50 GB tape technology provides 50 GB of storage capacity.
With data compression, up to 100 GB can be stored per cartridge, providing
unattended backup capability for a broad range of medium sized iSeries servers.
These tape features are an iSeries specific implementation of Scalable Linear
Recording (SLR) technology, identified as SLR100. The unit can store data at a
rate of 5 MB per second (10 MB per second with a 2:1 compression). This data
rate is twice the rate of previous ¼-inch tape backup used on the iSeries. In
addition to reading and writing on new SLR100 50 GB or 5 GB data cartridges,
there is backward write and read compatibility with MLR3 (SLR50) and backward
read compatibility with MLR1 (DC 5010) tape formats.
This tape is not compatible with System/36 tape devices. For read and write
compatibility, refer to the internal tape read/write compatibilities table 391.
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