add sas2ircu to FreeNAS
A few users have found sas2ircu useful for LSI controllers. Request this be added to FreeNAS. It can be downloaded from the LSI website.
#1 Updated by Borja Marcos over 4 years ago
It can help to identify backplane slots when searching for a disk. LSI cards assign SAS target identifiers in a rather weird way, so it's not possible to establish a reliable mapping between backplane slots and device identifiers. Also, the tool is not intended for "IT firmware" controllers, so care must be taken not to use other options.
A simple "sas2ircu controller_number display" gives a full dump of the device table including the backplane slot numbers and devices attached to them. Still quite complicated, but I have found this procedure to identify a failed disk:
- Find the serial number (should be available on the boot log files or, if the device still answers, wich camcontrol)
- Grab the full output of sas2ircu 0 display (assuming controller number 0) and search for the serial number. If the disk no longer answers, it should be the physically populated slot that doesn't show a device.
Also, the output is not soted by slot number (seems to be a dump of an internally kept mapping between devices and target ids).