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SCSI_LOGGING_LEVEL

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] [−−timeout=LEV] [−−version]

DESCRIPTION

This Bourne 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 © 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 PURPOSE.

The software was obtained from an IBM package called s390−tools−1.6.2 found on that company’s "developerworks" site. The most recent version of that package at this time is 1.8.3 .

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