lsscsi-0.26 released
lsscsi currently can provide some transport related identifiers when the --transport (-t) option is used. This will probably be a target port identifier rather than a LU name (a.k.a. the WWN). Fetching the LU name has proven elusive. The most direct way would be to issue an INQUIRY to get the device identification VPD page but that would require root permissions. A feature of lsscsi is that it does not need root permissions (or related tricks).
This version adds a --wwn (-w) option which searches the udev provided /dev/disk/by-id/wwn-* symlinks. This will find WWNs (LU names) for disks if udev can find them.
There are two SATA disks in the example below: /dev/sda and /dev/sdd . /dev/sda is older and has no WWN plus it is directly connected to a SATA controller on the motherboard. /dev/sdd has a WNN and is connected via a SAS expander.
# lsscsi [1:0:0:0] disk ATA ST3320620AS 3.AA /dev/sda [6:0:0:0] enclosu Intel RES2SV240 0600 - [6:0:1:0] disk SEAGATE ST33000650SS 0002 /dev/sdb [6:0:2:0] disk SEAGATE ST32000444SS 0006 /dev/sdc [6:0:3:0] disk ATA ST3500418AS CC34 /dev/sdd
# lsscsi -w [1:0:0:0] disk /dev/sda [6:0:0:0] enclosu - [6:0:1:0] disk 0x5000c50033fe58db /dev/sdb [6:0:2:0] disk 0x5000c500215725bf /dev/sdc [6:0:3:0] disk 0x5000c500120bfe84 /dev/sdd
# lsscsi -t [1:0:0:0] disk sata: /dev/sda [6:0:0:0] enclosu sas:0x5001517e85c3effd - [6:0:1:0] disk sas:0x5000c50033fe58d9 /dev/sdb [6:0:2:0] disk sas:0x5000c500215725bd /dev/sdc [6:0:3:0] disk sas:0x5001517e85c3efe2 /dev/sdd
Version 0.26 is available at:
http://sg.danny.cz/scsi/lsscsi.html
More information can be found on that page including examples and a Download section for the tarball, Debian and Redhat packages.
ChangeLog:
Version 0.26 2012/01/31 [svn: r97]
- add 'fcoe' transport indicator
- add '--wwn' option, datamine /dev/disk/by-id/wwn*
- move lsscsi.c into src directory
Version 0.25 2011/05/09 [svn: r92]
...
Doug Gilbert