how many hard disks can I use

[W. Paul Zola]

In article <1991Mar15.152030.3575 at robot.in-berlin.de> karl at robot.in-berlin.de (Karl-P. Huestegge) writes:
}aed at netcom.COM (Andrew Davidson) writes:
}>I am currently running sco unix on an intel 486 box with one esdi hard
}>disk controler and two hard disks. Is it possible to add another hard
}>disk controler and more disk with out having to go to scsi?
}
}Look into your release notes or into the script /usr/lib/mkdev/hd ;-)
}
}You can't add a 2nd ESDI or ST-506 - controler.
}
}You can simply try it with 'mkdev hd'.

This is not correct.  SCO Xenix 2.3, SCO Open Desktop, and SCO UNIX 3.2 
all support up to 2 ST-506 style controllers in a single machine, each 
with up to two disks per controller, for a total of 4 ST-506 disks.  
(This includes controllers such as the WD1007 which present an ST-506 
interface to the bus, even though they are ESDI controllers.) 

In addition, SCO UNIX allows you to have up to 4 SCSI disks on up to 2 
SCSI controllers, while SCO Xenix 2.3 GT allows you to have up to 14 
SCSI disks on 2 Adaptec SCSI controllers.  Of course, you have to alter 
the NDISK and NMOUNT parameters to allow for this many disks on your 
system.  The specific disk you are adding is specified by options to 
'mkdev hd'.

Only if you are using an SMS OMTI controller are you limited to 2 disks
per system.

}
}-- 
}Karl-Peter Huestegge                            karl at robot.in-berlin.de
}Berlin Friedenau                                Bus: 2,25,48,81,85
}U-Net: Bhf.F.Wilh.Pl.                           ..unido!fub!geminix!robot!karl

I hope that this has been helpful.

-
Paul Zola			Software Support Engineer 
				paulz at sco.COM 
Gotta tend the earth if you want a rose.  - Emily Saliers
    DISCLAIMER: I speak for myself, and not for SCO.