69 lines
2.1 KiB
Groff
69 lines
2.1 KiB
Groff
.TH SG_READ_BLOCK_LIMITS "8" "November 2022" "sg3_utils\-1.48" SG3_UTILS
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.SH NAME
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sg_read_block_limits \- send SCSI READ BLOCK LIMITS command
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.SH SYNOPSIS
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.B sg_read_block_limits
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[\fI\-\-help\fR] [\fI\-\-hex\fR] [--mloi] [\fI\-\-raw\fR]
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[\fI\-\-readonly\fR] [\fI\-\-verbose\fR] [\fI\-\-version\fR]
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\fIDEVICE\fR
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.SH DESCRIPTION
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.\" Add any additional description here
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.PP
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Send a SCSI READ BLOCK LIMITS command to \fIDEVICE\fR and outputs the
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response. This command is defined for tape (drives) and its description
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is found in the SSC documents at https://www.t10.org .
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.SH OPTIONS
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Arguments to long options are mandatory for short options as well.
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.TP
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\fB\-h\fR, \fB\-\-help\fR
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output the usage message then exit.
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.TP
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\fB\-H\fR, \fB\-\-hex\fR
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output response in hex (rather than decode it).
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.TP
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\fB\-m\fR, \fB\-\-mloi\fR
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sets the MLOI bit in the READ BLOCK LIMITS command and if that
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succeeds, prints out the Maximum Logical Object Identifier (MLOI)
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value. The MLOI bit was introduced in the ssc4r02.pdf draft.
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.TP
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\fB\-r\fR, \fB\-\-raw\fR
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output response in binary to stdout.
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.TP
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\fB\-R\fR, \fB\-\-readonly\fR
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open \fIDEVICE\fR in read\-only mode. The default is to open it in
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read\-write mode.
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.TP
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\fB\-v\fR, \fB\-\-verbose\fR
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increase the level of verbosity, (i.e. debug output).
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.TP
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\fB\-V\fR, \fB\-\-version\fR
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print the version string and then exit.
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.SH EXIT STATUS
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The exit status of sg_read_block_limits is 0 when it is successful. Otherwise
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see the sg3_utils(8) man page.
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.SH EXAMPLES
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It is usually okay to use no options. Here is an invocation (on the first
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line following the "#" command prompt) followed by some typical output:
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.PP
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# sg_read_block_limits /dev/st0
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.br
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Read Block Limits results:
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.br
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Minimum block size: 1 byte(s)
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.br
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Maximum block size: 16777215 byte(s), 16383 KB, 15 MB
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.br
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Granularity: 0
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.br
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.SH AUTHORS
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Written by Douglas Gilbert.
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.SH "REPORTING BUGS"
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Report bugs to <dgilbert at interlog dot com>.
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.SH COPYRIGHT
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Copyright \(co 2009\-2022 Douglas Gilbert
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.br
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This software is distributed under a BSD\-2\-Clause license. There is NO
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warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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.SH "SEE ALSO"
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.B sg3_utils(sg3_utils)
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