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From: jjp@necis.UUCP (Jeff Phillips)
Newsgroups: comp.unix.xenix.sco,comp.unix.wizards
Subject: Max secondary storage
Keywords: disk cdrom max scsi secondary storage
Message-ID: <1419@necis.UUCP>
Date: 10 May 91 21:50:50 GMT
Organization: NEC Information Systems, Acton, MA
Lines: 20

Is there an inherent maximum limitation to the amount of physical secondary 
storage, specifically hard disks or cdrom, one can access under SCO UNIX 
3.2v2.0 excluding type RFS or NFS?  I checked out /usr/include/sys/params.h 
but couldn't find what (I thought) I was looking for.

Theoretically what I'd like to be able to do is install nine DPT 2012B/90 EISA
SCSI host adapters on one system and hang seven 1.2GB drives off of each for a
total of 75.6GB, possible more if I subsititute large-capacity cdroms for some
of the disks.  Besides device driver mod's to subvert the major number/minor
number restriction under SCO which only allows four disk drives per host 
adapter, what other kernel mod's would I need to investigate in the i/o
subsystem?  I believe there's also a two host-adapter per system restriction
but I'm not sure.  Any info would be greatly appreciated.
--
Jeffrey J. Phillips            			UUCP: jjp@necis.ma.nec.com
Product Manager, UNIX and Networking		PHONE: (508)635-6077
Product Planning and Management Department	FAX: (508)635-6378
NEC Technologies, Inc.		
1300 Massachusetts Avenue
Boxborough, MA 01719