MPS driver: force bus rescan after remove SAS cable

[Denny Schierz]

hi,

Am Mittwoch, den 27.04.2011, 05:57 -0700 schrieb Jeremy Chadwick:
> camcontrol reset 0

0:22:0 is available, 0:46:0 not:

root at iscsihead-m:~# camcontrol reset 0:22:0
Reset of 0:22:0 was successful

root at iscsihead-m:~# camcontrol reset 0:46:0
camcontrol: cam_open_btl: no passthrough device found at 0:46:0

We bought the LSI SAS6160 switch:

http://www.lsi.com/storage_home/products_home/sas_switch/sas6100/index.html

use the LSI 9200-8e hostbusadapter and LSI JBODs 630j. We had a lot of
e-mail conversation with LSI and they mean, that we need the switch for
a clear failover setup.
Also a reason for the switch: increase storage with more jbods. Every
jbod has his own cable to the (later) redundant switch. Otherwise we
have to build a "bus" from JBOD to JBOD to JBOD to JBOD to host ... bad
idea ;-)

The question is, what does the driver while FreeBSD starts?

With Solaris10 we didn't have such a problem like this ... strange.

cu denny
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