MD1000 connected with two SAS cables in unified mode

Patrick_Fischer at Patrick_Fischer at
Thu Sep 11 07:06:31 CDT 2008

This configuration is a problem and results in many times in seeing all
luns 2 times.
Two cables are only supported in split mode in all other cases only one.
It has its cause that it is not in the manual because it doesn't make
sence anyway.

-----Original Message-----
From: linux-poweredge-bounces at
[mailto:linux-poweredge-bounces at] On Behalf Of Jeff Ewing
Sent: Thursday, September 11, 2008 1:57 PM
To: linux-poweredge-Lists
Subject: MD1000 connected with two SAS cables in unified mode

The MD1000 array on my Redhat server was connected with two SAS cables
from the dual port PERC 5 card to each EMM on the MD1000 array.
It operates in unified mode.

This configuration is not described in the
MD1000 Hardware owners manual.

Could this configuration cause problems?

Does this configuration provide any benefit?


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