IBM TS2340 User Guide - Page 163

Special Files, special files generally used on Solaris systems.

Page 163 highlights

Solaris Device Driver (IBMtape) Addr e/e The element address where the drive is located in the library. The first and second instances of "e" stand for encryption capable and encryption enable. The usage of the tapelist program is as follows: -l Print for all of the configured devices with the column headers in long list -L Display the tape drives information in the tape library -c Don't print column headers in long list for all of the configured devices -t Display HBA information and current load balancing status -f Print the list for a particular file only -A List the tape devices by HBA -a Print out the info of all of FC HBAs -h Help menu Running tapelist without any options displays the device information line by line for all of the configured devices. Special Files After the IBMtape driver is installed, a set of special files is available for performing input/output (I/O) operations to each supported device. The device special file names created by the IBMtape device driver are similar to the SCSI tape special files generally used on Solaris systems. Each tape instance has a set of minor numbers that provides access to the same physical device, but each minor number provides a different function or behavior for the tape subsystem. These minor numbers are accessed through variations of the special file name for that device. The special files are created in the /dev/rmt directory. These special files are actually symbolic links to files created within the /devices subdirectory hierarchy. Issuing the ls -la /dev/rmt command gives useful information about these device special files. The following example shows entries returned by this command for a single IBM tape subsystem. This listing is system dependent, so entries vary slightly in format, depending on the operating system and SCSI adapter support. There may also be entries included for other devices that are not supported by the IBMtape device driver. lrwxrwxrwx root other 79 Aug 26 18:54 0smc -> /devices/iommu@f,e0000000/sbus@f,e0001000/QLGC,isp@3, 10000/IBMtape@2,0:smc lrwxrwxrwx root other 78 Aug 26 18:54 0st -> /devices/iommu@f,e0000000/sbus@f,e0001000/QLGC,isp@3, 10000/IBMtape@2,0:st lrwxrwxrwx root other 79 Aug 26 18:54 0stb -> /devices/iommu@f,e0000000/sbus@f,e0001000/QLGC,isp@3, 10000/IBMtape@2,0:stb lrwxrwxrwx root other 80 Aug 26 18:54 0stbn -> /devices/iommu@f,e0000000/sbus@f,e0001000/QLGC,isp@3, 10000/IBMtape@2,0:stbn lrwxrwxrwx root other 79 Aug 26 18:54 0stc -> /devices/iommu@f,e0000000/sbus@f,e0001000/QLGC,isp@3, 10000/IBMtape@2,0:stc lrwxrwxrwx root other 80 Aug 26 18:54 0stcb -> /devices/iommu@f,e0000000/sbus@f,e0001000/QLGC,isp@3, 10000/IBMtape@2,0:stcb lrwxrwxrwx root other 81 Aug 26 18:54 0stcbn -> /devices/iommu@f,e0000000/sbus@f,e0001000/QLGC,isp@3, 10000/IBMtape@2,0:stcbn lrwxrwxrwx root other 80 Aug 26 18:54 0stcn -> /devices/iommu@f,e0000000/sbus@f,e0001000/QLGC,isp@3, Chapter 6. Solaris Tape and Medium Changer Device Driver 145

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Addr
The element address where the drive is located in the library.
e/e
The first and second instances of "e" stand for encryption
capable and encryption enable.
The usage of the tapelist program is as follows:
-l
Print for all of the configured devices with the column headers in long list
-L
Display the tape drives information in the tape library
-c
Don't print column headers in long list for all of the configured devices
-t
Display HBA information and current load balancing status
-f
Print the list for a particular file only
-A
List the tape devices by HBA
-a
Print out the info of all of FC HBAs
-h
Help menu
Running tapelist without any options displays the device information line by line
for all of the configured devices.
Special Files
After the IBMtape driver is installed, a set of special files is available for
performing input/output (I/O) operations to each supported device. The device
special file names created by the IBMtape device driver are similar to the SCSI tape
special files generally used on Solaris systems.
Each tape instance has a set of minor numbers that provides access to the same
physical device, but each minor number provides a different function or behavior
for the tape subsystem. These minor numbers are accessed through variations of
the special file name for that device. The special files are created in the
/dev/rmt
directory. These special files are actually symbolic links to files created within the
/devices
subdirectory hierarchy.
Issuing the
ls -la /dev/rmt
command gives useful information about these device
special files. The following example shows entries returned by this command for a
single IBM tape subsystem. This listing is system dependent, so entries vary
slightly in format, depending on the operating system and SCSI adapter support.
There may also be entries included for other devices that are not supported by the
IBMtape device driver.
lrwxrwxrwx root other 79 Aug 26 18:54 0smc
->
/devices/iommu@f,e0000000/sbus@f,e0001000/QLGC,isp@3,
10000/IBMtape@2,0:smc
lrwxrwxrwx root other 78 Aug 26 18:54 0st
->
/devices/iommu@f,e0000000/sbus@f,e0001000/QLGC,isp@3,
10000/IBMtape@2,0:st
lrwxrwxrwx root other 79 Aug 26 18:54 0stb
->
/devices/iommu@f,e0000000/sbus@f,e0001000/QLGC,isp@3,
10000/IBMtape@2,0:stb
lrwxrwxrwx root other 80 Aug 26 18:54 0stbn
->
/devices/iommu@f,e0000000/sbus@f,e0001000/QLGC,isp@3,
10000/IBMtape@2,0:stbn
lrwxrwxrwx root other 79 Aug 26 18:54 0stc
->
/devices/iommu@f,e0000000/sbus@f,e0001000/QLGC,isp@3,
10000/IBMtape@2,0:stc
lrwxrwxrwx root other 80 Aug 26 18:54 0stcb
->
/devices/iommu@f,e0000000/sbus@f,e0001000/QLGC,isp@3,
10000/IBMtape@2,0:stcb
lrwxrwxrwx root other 81 Aug 26 18:54 0stcbn ->
/devices/iommu@f,e0000000/sbus@f,e0001000/QLGC,isp@3,
10000/IBMtape@2,0:stcbn
lrwxrwxrwx root other 80 Aug 26 18:54 0stcn
->
/devices/iommu@f,e0000000/sbus@f,e0001000/QLGC,isp@3,
Solaris Device Driver (IBMtape)
Chapter 6. Solaris Tape and Medium Changer Device Driver
145