additional information on "cciss" device support?

We have a number of servers with CCISS RAID controller cards, and I'm
experimenting with using the "-d cciss,N" option to check the SMART
status of the drives behind the controller cards.

In looking for information on this I found the brief discussion in the
smartctl man page:
  http://www.smartmontools.org/browser/trunk/smartmontools/smartctl.8.in
, as well as the overview on the Wiki page:
  http://www.smartmontools.org/wiki/Supported_RAID-Controllers

However, these seem to leave out a lot of details on how the CCISS
support works.  Am I missing some other documentation on the CCISS
support that I should be looking at?

Some examples of things that have come up:

 * how do the drives get assigned to the "N" index used in the "-d
   cciss,N" option?  (They don't show up in the same order as the
   hpacucli utility uses....)

 * When I use "-d sat" on an USB bridge, the output of "smartctl -a"
   looks essentially the same as what I get from a directly-connected SATA
   drive... but the output from a "-d cciss,0" command is much shorter
   (even when the drive in question is a SATA drive).  What controls the
   information included in the output, and would it matter what Linux
   kernel version I'm running, etc.  (Is there any way to view the 
   SMART Attributes table, for example?)

 * The Supported_RAID-Controllers wiki page lists the device file to use
   under Linux as "/dev/sdX", but on our systems the actual device is
   /dev/cciss/sXdX.  Is this an outright mistake (copied from the line
   for another device type?) on the wiki page, or a change between Linux
   versions or something along those lines?

 
Thanks.

						Nathan  
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Nathan Stratton Treadway  -  [email protected]  -  Mid-Atlantic region
Ray Ontko & Co.  -  Software consulting services  -   http://www.ontko.com/
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