sg_read_block_limits man page

sg_read_block_limits — send SCSI READ BLOCK LIMITS command


sg_read_block_limits [--help] [--hex] [--raw] [--verbose] [--version] DEVICE


Send a SCSI READ BLOCK LIMITS command to DEVICE and outputs the response. This command is defined for tape (drives) and its description is found in the SSC documents at .


Arguments to long options are mandatory for short options as well.

-h, --help
output the usage message then exit.
-H, --hex
output response in hex (rather than decode it).
-r, --raw
output response in binary to stdout.
-v, --verbose
increase the level of verbosity, (i.e. debug output).
-V, --version
print the version string and then exit.

Exit Status

The exit status of sg_read_block_limits is 0 when it is successful. Otherwise see the sg3_utils(8) man page.


It is usually okay to use no options. Here is an invocation (on the first line following the "#" command prompt) followed by some typical output:

# sg_read_block_limits /dev/st0
Read Block Limits results:
Minimum block size: 1 byte(s)
Maximum block size: 16777215 byte(s), 16383 KB, 15 MB


Written by Douglas Gilbert.

Reporting Bugs

Report bugs to <dgilbert at interlog dot com>.

See Also



November 2012 sg3_utils-1.35 SG3_UTILS