MIT provides MULTICS source and documentation (DPS-8 simulation)

Sridhar Ayengar ploopster at
Thu Nov 15 08:37:05 CST 2007

Huw Davies wrote:
>> Which reminds me of a comment I saw somewhere about the possibility of 
>> having
>> a SCSI bus with more than one host adapter on it.  Is that even possible?
> VMS has allowed SCSI clusters for quite a while that allow multiple host 
> adapters - typically you set the first host adapter to address 7 and the 
> next to 6 (and I guess 5 if you have three hosts - I've only done it 
> with two).
> This has been re-invented for Integrity (aka Itanium) servers but I 
> think it's limited to two hosts.
> Works and works well with supported SCSI adapters.

Works even better with DSSI, since disks can be quorum members.

Peace...  Sridhar

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