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IBM R30 Operator's Manual: General Information For 4.0gb 4 Mm Tape Drive

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General Information for 4.0GB 4 mm Tape Drive

The 4.0GB 4 mm tape drive, if present, is an optional device in the CPU Enclosure and is
located in the bottom media position to the left of the operator panel.
The 4.0GB 4 mm tape drive is an internal streaming tape drive that is used to:
Save and restore system data files.
Archive important records.
Distribute operating system software upgrades.
The 4 mm tape drive can be attached to any system using a single-ended interface meeting
the Small Computer System Interface ll (SCSI-ll) Standard ANSI X3.131-199X Rev. 10h.
The 4 mm tape drive has the following features:
Capacity of 4.0GB per cartridge. 8 GB is typical with data compression and with DDS2
data cartridges.
The actual capacity per cartridge varies depending on the application and the type of data
cartridge being used.
Data transfer rate is 400 KBps. 800 KBps is typical with data compression.
Note: Data compression activated is the default setting from the factory. Data
Read and write of DDS llll tape cartridges in 2.0GB per cartridge format.
A status light that indicates when it is time to clean the tape path.
Internal diagnostics that are activated when the 4 mm Diagnostic Cartridge is inserted
and loaded into the drive.
Media recognition system: only data grade media can be used with this tape drive.
The 4 mm tape drive uses a 4 mm data cartridge for saving and restoring your system data.
The 4 mm tape drive is designed to use only 4 mm Digital Data Storage (DDS) cartridges.
These cartridges are identified by the DDS symbols (shown below) somewhere on the data
cartridge.
2-34
Operator Guide
compression is usually controlled by the application software.
Digital
Data
Storage
Digital
Data
Storage

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R40, R50

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