RE: RAID5 (6502) on a model 400 question

["Andy Nolen-Parkhouse" <aparkhouse@xxxxxxxxx>]

Carl,

I'm looking through the V4R1 System Builder which has some information
regarding the 400 model.  According to what I'm reading, the 6502/6522
Disk controllers are only allowed in the Expansion Unit.

My recollection, fuzzy at this time, is that a 'protected' 400 model
will have a mirrored load source and RAID in the expansion unit.

Based on what I'm reading, you cannot accomplish your immediate goal of
implementing RAID in the system unit of a model 400.  The 6502 has a
designated slot (slot #1) in the expansion unit, and will not fit in
just any slot.

Regards,
Andy Nolen-Parkhouse

> Subject: RAID5 (6502) on a model 400 question
>
> I am in the process of trying to add a 6502 RAID card to a model
> 400-9402.  The current box has no expansion chassis attached and had
> room for 2 SPD cards.  In the machine there is an Ethernet card and a
> 6141 ASCII controller card.  I do not use the ASCII controller anymore
> so my plan was to replace the 6141 with the 6502.  The machine also
has
> 4 drives in it, 2 6607s and 2 6606s.  My plan (I am currently doing it
> as I write) is to unload my data, swap the 2 6606s for 6607s and
reload
> my data.  So far so good.  My question is this:
>
> Can I use the 6502 card in this AS400?  The reason I ask is because
the
> 6141 card I removed only had one connector to connect the card to the
> system backplane, however the 6502 has 2 connectors.  If I look in the
> slot, there is clearly only one place for a connection to be made.  Is
> there something else I need to use the 6502?  A different bus or
> something?  Do I have to have an expansion cabinet bolted to this
> machine?
>
> Any info is greatly appreciated.