Attributes for 4.0 GB 4 mm tape drives (type 4mm4gb)

The following are the attributes for 4.0 GB 4 mm tape drives (type 4mm4gb).

Block size
The default value is 1024.
Device buffers
The general information for this attribute applies to this tape drive type.
Density setting #1 and Density setting #2
The user cannot change the density setting of this drive; the device reconfigures itself automatically depending on the Digital Data Storage (DDS) media type installed, as follows:
Media Type Device Configuration
DDS Read-only.
DDS |||| Read/write in 2.0 GB mode only.
DDS2 Read in either density; write in 4.0 GB mode only.
non-DDS Not supported; cartridge will eject.
Data compression
The general information for this attribute applies to this tape drive type.
Attributes with fixed values
If a tape drive is configured as a 4.0 GB 4 mm tape drive, the Retension, Reserve Support, Variable Length Block Size, Density Setting #1, and Density Setting #2 attributes have predefined values that cannot be changed.