IBM R30 Operator's Manual page 46

Tape Cartridge Compatibility
The 8 mm tape drive is compatible with existing 8-mm tape subsystems that comply with the
American National Standard (ANSI) X3B5/89–136, Helical-scan Digital Computer Tape
Cartridge, 8 mm for Information Exchange. Data compression effectively increases the
cartridge capacity and data transfer rate for the 5.0GB tape cartridges.
8 mm Tape Drive
5.0GB
Setting the Write-Protect Tab on 8 mm Tape Cartridges
Setting the write-protect tab on a tape cartridge is necessary so that information is not
accidentally lost. When the write-protect tab of a tape cartridge is set (window closed),
information can be read from the tape but cannot be written to it.
The window on the tape cartridge controls write-protection.
Write-Protect Tab Not Set
Window
Opened
Environmental Considerations for 8 mm Data Cartridges
Information in this section describes operating and storage conditions including temperature,
relative humidity, and maximum wet bulb data.
Attention: The manufacturer has specified a set of temperature and humidity ranges in
which the 8 mm data cartridge can operate with ease. Only regular cleaning procedures are
required when operating the cartridge within this range. The risk of possible data loss is
increased if 8 mm tape cartridges are operated, stored, or shipped outside the temperature
or humidity ranges shown in the following table.
Before using a cartridge, always let it adjust (acclimate) to the operating environment. Do
this by placing the cartridge with its container in the operating environment for as long as it
has been away from this environment or for 24 hours, whichever is less.
Acclimation is necessary for any data cartridge that has been exposed to a different humidity
environment or a temperature change equal to or greater than 11 C or 20 F.
Temperature
Relative Humidity
(non-condensing)
Maximum Wet Bulb
2-26
Operator Guide
Format Mode (C = compression mode)
5.0GB
Read/Write
Operating Ranges
16 to 32 C 5 to 32 C
(60 to 90 F) (40 to 90 F)
20% to 80% 20% to 80%
26 C (79 F) 26 C (79 F)
5.0GB (C)
Read/Write
Write-Protect Tab Set
Window
Closed
Storage Shipping
–40 to 52 C
(–40 to 125 F)
20% to 80%
26 C (79 F)