[rescue] External drives on an X4540

[Phil Stracchino]

Problem solved by swapping back to my *original* SAS controller, an LSI
9212-4i4e.  There were two problems:  my *original* SAS cable wouldn't
work because it's a single-lane cable, and the *replacement* controller
I bought because I didn't know that single-lane vs. multi-lane SAS
cables were a thing turns out to have a fault that locks up the driver
if connected to the external chassis using a multilane cable (yet works
OK with a single-lane cable).


asgard:root:~:4 # cfgadm -al
[...]
c11                            scsi-sas     connected    configured
unknown
c11::w5000c5001fa517eb,0       disk-path    connected    configured
unknown
c12                            scsi-sas     connected    configured
unknown
c12::w5000c5001fa3fc47,0       disk-path    connected    configured
unknown
c13                            scsi-sas     connected    configured
unknown
c13::w5000c5001fa430ce,0       disk-path    connected    configured
unknown
c15                            scsi-sas     connected    configured
unknown
c15::w5000c5001fa4d236,0       disk-path    connected    configured
unknown


-- 
  Phil Stracchino
  Babylon Communications
  phils at caerllewys.net
  phil at co.ordinate.org
  Landline: +1.603.293.8485
  Mobile:   +1.603.998.6958