Manpages - sg_read_block_limits.8

sg_read_block_limits - send SCSI READ BLOCK LIMITS command

sg_read_block_limits [/–help/] [/–hex/] [/–raw/] [/–readonly/] [/–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 https://www.t10.org .

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.

-R, –readonly

open DEVICE in read-only mode. The default is to open it in read-write mode.

-v, –verbose

increase the level of verbosity, (i.e. debug output).

-V, –version

print the version string and then exit.

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:

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

Written by Douglas Gilbert.

Report bugs to <dgilbert at interlog dot com>.

Copyright © 2009-2017 Douglas Gilbert
This software is distributed under a FreeBSD license. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

sg3_utils(sg3_utils)