IBM TS2340 User Guide - Page 121

Nonchangeable Parameters, Autoloading, Capacity Scaling, Density Code, Emulate Autoloader, Hook Word

Page 121 highlights

Linux Device Driver (lin_tape) v Compression v Disable auto drive dump v Disable SIM logging v Logging v Logical write protect v Maximum SCSI transfer length v Read past filemark v Rewind immediate v Trace v Trailer labels Nonchangeable Parameters The configuration parameters are used to set the operating mode of the tape drive and device driver when a device is opened. The nonchangeable parameters are detailed as follows: Autoloading This parameter enables the autoloading feature of the device driver. It is disabled by default and cannot be changed. Capacity Scaling This parameter sets the capacity or logical length of the current tape. By reducing the capacity of the tape, the tape drive can access data faster at the expense of data capacity. Capacity Scaling is not supported currently but might be supported in future releases of lin_tape. Density Code This parameter is the density setting for the currently loaded tape. Some tape devices support multiple densities and report the current setting in this field. It cannot be changed by the application. Emulate Autoloader This parameter currently is not supported and should be ignored. Hook Word This parameter is not supported in the lin_tape device driver. Logical Write Protect This parameter sets or resets the logical write protect of the current tape. This feature is not supported currently but might be supported in future releases of the lin_tape. Maximum Block Size This parameter is the maximum block size for the device. Minimum Block Size This parameter is the minimum block size for the device. Medium Type This parameter is the media type of the current loaded tape. Some tape devices support multiple media types and different values are reported in this field. Chapter 5. Linux Tape and Medium Changer Device Driver 103

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v
Compression
v
Disable auto drive dump
v
Disable SIM logging
v
Logging
v
Logical write protect
v
Maximum SCSI transfer length
v
Read past filemark
v
Rewind immediate
v
Trace
v
Trailer labels
Nonchangeable Parameters
The configuration parameters are used to set the operating mode of the tape drive
and device driver when a device is opened. The nonchangeable parameters are
detailed as follows:
Autoloading
This parameter enables the autoloading feature of the device driver. It is disabled
by default and cannot be changed.
Capacity Scaling
This parameter sets the capacity or logical length of the current tape. By reducing
the capacity of the tape, the tape drive can access data faster at the expense of data
capacity. Capacity Scaling is not supported currently but might be supported in
future releases of lin_tape.
Density Code
This parameter is the density setting for the currently loaded tape. Some tape
devices support multiple densities and report the current setting in this field. It
cannot be changed by the application.
Emulate Autoloader
This parameter currently is not supported and should be ignored.
Hook Word
This parameter is not supported in the lin_tape device driver.
Logical Write Protect
This parameter sets or resets the logical write protect of the current tape. This
feature is not supported currently but might be supported in future releases of the
lin_tape.
Maximum Block Size
This parameter is the maximum block size for the device.
Minimum Block Size
This parameter is the minimum block size for the device.
Medium Type
This parameter is the media type of the current loaded tape. Some tape devices
support multiple media types and different values are reported in this field.
Linux Device Driver (lin_tape)
Chapter 5. Linux Tape and Medium Changer Device Driver
103