On 27.04.2011 16:39, Denny Schierz wrote:
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@iscsihead-m:~# camcontrol reset 0:22:0
Reset of 0:22:0 was successful
root@iscsihead-m:~# camcontrol reset 0:46:0
camcontrol: cam_open_btl: no passthrough device found at 0:46:0
You should reset whole bus, not the specific LUN. Full reset doesn't
need that passthrough device. IIRC it works via xpt0.
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?
CAM exactly does full bus reset and after few seconds full rescan. What
controller driver may do except it depends on it alone.
--
Alexander Motin
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