IBM RS/6000 7025 General Information for 4.0GB 4-mm Tape Drive

General Information for 4.0GB 4-mm Tape Drive
The 4.0GB 4-mm tape drive is a 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 4.0 GB 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
compression is usually controlled by the application software.
Read and write of DDS|||| tape cartridges in 2.0 GB 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 written 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 writes and reads only 4-mm Digital Data Storage
(DDS|||| or DDS2) cartridges.
Chapter 2. Using the System Unit 2-31