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scsi_logging_level(8) [centos man page]

SCSI_LOGGING_LEVEL(8)						     SG3_UTILS						     SCSI_LOGGING_LEVEL(8)

NAME
scsi_logging_level - access Linux SCSI logging level information SYNOPSIS
scsi_logging_level [--all=LEV] [--create] [--error=LEV] [--get] [--help] [--highlevel=LEV] [--hlcomplete=LEV] [--hlqueue=LEV] [--ioctl=LEV] [--llcomplete=LEV] [--llqueue=LEV] [--lowlevel=LEV] [--midlevel=LEV] [--mlcomplete=LEV] [--mlqueue=LEV] [--scan=LEV] [--set] [--time- out=LEV] [--version] DESCRIPTION
This bash shell script accesses the Linux SCSI subsystem logging level. The current values can be shown (e.g. with --get) or changed (e.g. with --set). Superuser permissions will typically be required to set the logging level. One of these options: --create, --get or --set is required. Only one can be given. OPTIONS
Arguments to long options are mandatory for short options as well. -a, --all=LEV LEV is used for all SCSI_LOG fields. -c, --create Options are parsed and placed in internal fields that are displayed but no logging levels are changed within the Linux kernel. -E, --error=LEV LEV is placed in the SCSI_LOG_ERROR field. -g, --get Fetches the current SCSI logging levels from the Linux kernel and displays them. -h, --help print out the usage message then exit. -H, --highlevel=LEV LEV is placed in the SCSI_LOG_HLQUEUE and SCSI_LOG_HLCOMPLETE fields. --hlcomplete=LEV LEV is placed in the SCSI_LOG_HLCOMPLETE field. --hlqueue=LEV LEV is placed in the SCSI_LOG_HLQUEUE field. -I, --ioctl=LEV LEV is placed in the SCSI_LOG_IOCTL field. --llcomplete=LEV LEV is placed in the SCSI_LOG_LLCOMPLETE field. --llqueue=LEV LEV is placed in the SCSI_LOG_LLQUEUE field. -L, --lowlevel=LEV LEV is placed in the SCSI_LOG_LLQUEUE and SCSI_LOG_LLCOMPLETE fields. -M, --midlevel=LEV LEV is placed in the SCSI_LOG_MLQUEUE and SCSI_LOG_MLCOMPLETE fields. --mlcomplete=LEV LEV is placed in the SCSI_LOG_MLCOMPLETE field. --mlqueue=LEV LEV is placed in the SCSI_LOG_MLQUEUE field. -S, --scan=LEV LEV is placed in the SCSI_LOG_SCAN field. -s, --set Uses the fields specified in this command's options and attempts to apply them to the Linux SCSI subsystem logging levels. Typically superuser permissions will be required to do this. -T, --timeout=LEV LEV is placed in the SCSI_LOG_TIMEOUT field. -v, --version Outputs the version information and then exits. NOTES
The --get and --set options access the /proc/sys/dev/scsi/logging_level pseudo file. EXIT STATUS
The exit status of this script is 0 when it is successful. Any other exit status indicates that an error has occurred. AUTHORS
Written by IBM. Small alterations by Douglas Gilbert. REPORTING BUGS
Report bugs to <dgilbert at interlog dot com>. COPYRIGHT
Copyright (C) IBM Corp. 2006 This software is distributed under the GPL version 2. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PUR- POSE. The software was obtained from an IBM package called s390-tools-1.6.2 found on that company's "developerworks" site. The most recent ver- sion of that package at this time is 1.8.3 . sg3_utils-1.36 May 2013 SCSI_LOGGING_LEVEL(8)

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SG_READ_BUFFER(8)						     SG3_UTILS							 SG_READ_BUFFER(8)

NAME
sg_read_buffer - send SCSI READ BUFFER command SYNOPSIS
sg_read_buffer [--help] [--hex] [--id=ID] [--length=LEN] [--mode=MO] [--offset=OFF] [--raw] [--verbose] [--version] DEVICE DESCRIPTION
Sends a SCSI READ BUFFER command to the DEVICE, and if there is a response either decodes it, prints it in hexadecimal or sends it in binary to stdout. If a response is received for a "descriptor" mode then, in the absence of --hex and --raw, it is decoded. Response for non-descriptor modes are output in hexadecimal unless the --raw option is given. OPTIONS
Arguments to long options are mandatory for short options as well. -h, --help output the usage message then exit. If used multiple times also prints the mode names and their acronyms. -H, --hex output the response in hexadecimal. When given twice the response is output in hex with the corresponding representation in ASCII to the right of each line. -i, --id=ID this option sets the buffer id field in the cdb. ID is a value between 0 (default) and 255 inclusive. -l, --length=LEN where LEN is the length, in bytes, that is placed in the "allocation length" field in the cdb. The default value is 4 (bytes). The device may respond with less bytes. -m, --mode=MO this option sets the mode field in the cdb. MO is a value between 0 (default) and 31 inclusive. Alternatively an abbreviation can be given. To list the available mode abbreviations use an invalid one (e.g. '--mode=xxx'). As an example, to fetch the read buffer descriptor give '--mode=desc' . -o, --offset=OFF this option sets the buffer offset field in the cdb. OFF is a value between 0 (default) and 2**24-1 . It is a byte offset. -r, --raw if a response is received then it is sent in binary to stdout. -v, --verbose increase the level of verbosity, (i.e. debug output). -V, --version print the version string and then exit. NOTES
All numbers given with options are assumed to be decimal. Alternatively numerical values can be given in hexadecimal preceded by either "0x" or "0X" (or has a trailing "h" or "H"). EXIT STATUS
The exit status of sg_read_buffer is 0 when it is successful. Otherwise see the sg3_utils(8) man page. AUTHORS
Written by Luben Tuikov and Douglas Gilbert. REPORTING BUGS
Report bugs to <dgilbert at interlog dot com>. COPYRIGHT
Copyright (C) 2006-2012 Luben Tuikov and Douglas Gilbert This software is distributed under a FreeBSD license. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PUR- POSE. SEE ALSO
sg_write_buffer(sg3_utils) sg3_utils-1.35 November 2012 SG_READ_BUFFER(8)
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