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  3. April 2005

Re: 250 failure


Yes, I've tested this myself (boots normal and manual).

The MFIOP is basically a SCSI controller. As shipped, the tape and CD are configured with SCSI id 0 & 1 (respectively). DASD will be in range of ids 6,5,4,3 (6 is usually the load source).

You can have no tape or CD, 2 tapes and probably 2 CDs (not tested). The only limitation I found was a max of 4 DASD.


I would agree that it would not make sense to configure a system without a CD/DVD or tape. This probably why the configurator (or whatever you are basing you opinion on) doesn't allow it.


Larry's frankenseries systems are excellent examples of what is possible.
http://frankenseries.com


Keith




Pat Barber wrote: 
I have never seen a system without both and I suspect
the "maps" for a "cold" IPL require "seeing" a
semi-working version there for the ipl to complete.

I assume you have seen a system IPL without both ???


Keith Carpenter wrote:


Yes, you can IPL without a tape and/or CD attached. They are only required to do an alternate IPL.



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