[Q] SRC/P intelligent RAID control card?

[Dave Garrison - Systems Engineer]

If I understand what you said correctly, you would get SRC/P control only
in the top 8 drive bays.  The E450 has 5 uscsi channels.  Starting from
the bottom drive bays: the first 4 bays are controlled by the built in
scsi controller; the next 8 (2 sets of 4) are controlled by (in your
case) the "regular" scsi controller; and the top 8 would be under the
SRC/P control.

The add-on scsi controllers (whether h/w or s/w raid) are dual channel
scsi controllers w/2 cables; each cable connects to one half of each
backplane, or 4 disk bays.  (Each add-on backplane supports 8 drives.)
So there is a 1 controller card to 1 backplane relationship.  To support
16 drives (both add-on backplanes) w/ h/w raid you need 2 of these
scsi controllers.  (I am only referring to the internal disk bays here,
not external drive support.)

HTH,
Dave


 
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> 
> We have SUN E450 witn Solaris 2.7 installed.  The computer have three 
> backplanes.  first and second backplane use regular SCSI control card and
> third backplane(top) use SRC/P intelligent control card.  Currently, there
> have 9 internal HD(id 0-8).  I installed the intelligent RAID software and
> run "dptmgr", their has icon "hba0" display and NO hard disk associate to it.
> I call SUN support engineer, he told me SRC/P can only work with HD 
> connect to it(it mean each backplane need SRC/P control card).  I saw the
> document mention SRC/P can control 16 internal
> HD and 36 external HD.  If it is true, why SRC/P can NOT find another
> backplane HD?
> 
> 
> Can anyone confirm that?
> 
> 
> Thanks.
> 
>