diff options
author | patmans@us.ibm.com <patmans@us.ibm.com> | 2003-12-07 08:55:40 -0800 |
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committer | Greg KH <gregkh@suse.de> | 2005-04-26 21:13:06 -0700 |
commit | 1bed1db4994aae37f4a11e90dabcd8b4e3592686 (patch) | |
tree | 00da2dc89dc42f58b74e7eb193015a94a6312b93 /extras/scsi_id/scsi_id.8 | |
parent | a652254ddba3f77abf63f732c42c3a0136dc03d2 (diff) |
[PATCH] update udev extras/scsi_id to version 0.2
This patch updates scsi_id under udev from version 0.1 to version 0.2.
Diffstat (limited to 'extras/scsi_id/scsi_id.8')
-rw-r--r-- | extras/scsi_id/scsi_id.8 | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/extras/scsi_id/scsi_id.8 b/extras/scsi_id/scsi_id.8 new file mode 100644 index 0000000000..a4fb881a05 --- /dev/null +++ b/extras/scsi_id/scsi_id.8 @@ -0,0 +1,118 @@ +.TH SCSI_ID 8 "December 2003" "" "Linux Administrator's Manual" +.SH NAME +scsi_id \- retrieve and generate a unique SCSI identifier +.SH SYNOPSIS +.BI scsi_id +[\fIoptions\fP] +.SH "DESCRIPTION" +.B scsi_id +queries a SCSI device via the SCSI INQUIRY vital product data (VPD) page 0x80 or +0x83 and uses the resulting data to generate a value that is unique across +all SCSI devices that properly support page 0x80 or page 0x83. + +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. + +\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 +be specified on the command line or in the config file for any useful +behaviour. + +SCSI commands are sent directly to the device via the SG_IO ioctl +interface. + +In order to generate unique values for either page 0x80 or page 0x83, the +serial numbers or world wide names are prefixed as follows. + +Identifiers based on page 0x80 are prefixed by the character 'S', the SCSI +vendor, the SCSI product (model) and then the the serial number returned +by page 0x80. For example: + +.sp +.nf +# scsi_id -p 0x80 -s /block/sdg +SIBM 3542 1T05078453 +.fi +.P + +Identifiers based on page 0x83 are prefixed by the identifier type +followed by the page 0x83 identifier. For example, a device with a NAA +(Name Address Authority) type of 3 (also in this case the page 0x83 +identifier starts with the NAA value of 6): + +.sp +.nf +# /sbin/scsi_id -p 0x83 -s /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. +.TP +.BI \-d "\| 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 +\fBdevice\fP, such as \fB/dev/sdc\fP. +.TP +.BI \-e +Send all output to standard error even if +.B scsi_id +is running in hotplug mode. +.TP +.BI \-f "\| config-file" +Read configuration and black/white list entries from +.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 +on the command line or in the scsi_id configuration file for +.B scsi_id +to generate any output. +.TP +.BI \-i +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. +.TP +.BI \-s "\|sysfs-device" +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. +.TP +.BI \-v +Generate verbose debugging output. +.TP +.BI \-V +Display version number and exit. +.RE +.SH "FILES" +.nf +.ft B +.ft +/etc/scsi_id.config configuration and black/white list entries +.fi +.LP +.SH "SEE ALSO" +.BR udev (8) +, especially the CALLOUT method. +.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 +specifications. |