If a result is generated it is sent to standard output, and the program
exits with a zero value. If no identifier is output, the program exits
-with a non-zero value.
+with a non\-zero value.
\fBscsi_id\fP is primarily for use by other utilities such as \fBudev\fP
that require a unique SCSI identifier.
-By default all devices are assume black listed, the \fB-g\fP option must
+By default all devices are assume black listed, the \fB\-\-whitelisted\fP option must
be specified on the command line or in the config file for any useful
behaviour.
.sp
.nf
-# scsi_id -p 0x80 -s /block/sdg
+# scsi_id --page=0x80 --devpath=/block/sdg
SIBM 3542 1T05078453
.fi
.P
.sp
.nf
-# /sbin/scsi_id -p 0x83 -s /block/sdg
+# /sbin/scsi_id --page=0x83 --devpath=/block/sdg
3600a0b80000b174b000000d63efc5c8c
.fi
.P
-
.SH OPTIONS
.TP
-.BI \-b
-The default behaviour - treat the device as black listed, and do nothing
-unless a white listed device is found in the scsi_id config-file.
+.BI \-\-fallback-to-sysfs
+Always print information (model, vendor strings) about the device even
+if it does not support VPD pages.
+.TP
+.BI \-\-ignore-sysfs
+Ignore sysfs entries. Used for devices which are not represented as SCSI
+devices, but understand SG_IO commands.
+.TP
+.BI \-\-blacklisted
+The default behaviour \- treat the device as black listed, and do nothing
+unless a white listed device is found in the scsi_id config\-file.
.TP
-.BI \-d "\| device\^"
+.BI \-\-device=\| device\^
Instead
of determining and creating a device node based on a sysfs dev
-entry as done for the \fB-s\fP, send SG_IO commands to
+entry as done for the \fB\-s\fP, send SG_IO commands to
\fBdevice\fP, such as \fB/dev/sdc\fP.
+This argument should also be used when invoked via udev to avoid problems
+with creation of temporary files on not-yet writable directories.
.TP
-.BI \-e
-Send all output to standard error even if
-.B scsi_id
-is running in hotplug mode.
-.TP
-.BI \-f "\| config-file"
+.BI \-\-config=\| config\-file
Read configuration and black/white list entries from
-.B config-file
+.B config\-file
rather than the default
.B /etc/scsi_id.config
file.
.TP
-.BI \-g
-Treat the device as white listed. The \fB\-g\fP option must be specified
+.BI \-\-whitelisted
+Treat the device as white listed. The \fB\-\-whitelisted\fP option must be specified
on the command line or in the scsi_id configuration file for
.B scsi_id
to generate any output.
.TP
-.BI \-i
+.BI \-\-prefix-bus-id
Prefix the identification string with the driver model (sysfs) bus id of
the SCSI device.
.TP
-.BI \-p "\| 0x80 | 0x83"
-Use SCSI INQUIRY VPD page code 0x80 or 0x83. The default behaviour is to
-query the available VPD pages, and use page 0x83 if found, else page 0x80
-if found, else nothing.
+.BI \-\-page=\| 0x80 | 0x83 | pre-spc3-83
+Use SCSI INQUIRY VPD page code 0x80, 0x83, or pre-spc3-83.
+.sp
+The default
+behaviour is to query the available VPD pages, and use page 0x83 if found,
+else page 0x80 if found, else nothing.
+.sp
+Page pre-spc3-83 should only be utilized for those scsi devices which
+are not compliant with the SPC-2 or SPC-3 format for page 83. While this
+option is used for older model 4, 5, and 6 EMC Symmetrix devices, its
+use with SPC-2 or SPC-3 compliant devices will fallback to the page 83
+format supported by these devices.
.TP
-.BI \-s "\|sysfs-device"
+.BI \-\-devpath=\| sysfs\-devpath
Generate an id for the
-.B sysfs-device.
-The sysfs mount point must not be included. For example, use /block/sd,
-not /sys/block/sd.
+.B sysfs\-devpath.
+The sysfs mount point must not be included.
.TP
-.BI \-v
+.BI \-\-replace-whitespace
+Reformat the output : replace all whitespaces by underscores.
+.TP
+.BI \-\-export
+Export all data in KEY=<value> format used to import in other programs.
+.TP
+.BI \-\-verbose
Generate verbose debugging output.
.TP
-.BI \-V
+.BI \-\-version
Display version number and exit.
.RE
+
+.SH ENVIRONMENT
+
+If the DEVPATH environment variable is set, scsi_id assumes it has been
+invoked via udev (or some other hotplug program), and all errors or
+warnings are sent using syslog.
+.P
+
.SH "FILES"
.nf
.ft B
.fi
.LP
.SH "SEE ALSO"
-.BR udev (8)
-, especially the CALLOUT method.
+.BR udev (7)
.SH AUTHORS
Developed by Patrick Mansfield <patmans@us.ibm.com> based on SCSI ID
source included in earlier linux 2.5 kernels, sg_utils source, and SCSI
~ianmdlvl / elogind.git / blobdiff