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From: terry@spcvxb.spc.edu (Terry Kennedy, Operations Mgr.)
Newsgroups: comp.os.rsts,comp.sys.dec
Subject: Re: EXABYTES on PDP-11 systems.
Message-ID: <1991Jan8.194751.959@spcvxb.spc.edu>
Date: 8 Jan 91 19:47:51 GMT
References: <7492.278a52aa@decus.com.au> <5851@spdcc.SPDCC.COM>
Followup-To: comp.sys.dec
Organization: St. Peter's College, US
Lines: 13

In article <5851@spdcc.SPDCC.COM>, jin@spdcc.COM (Jerry Natowitz) writes:
> I had the same hang problem on an 11/84 (unibus) system running RSX11-M-PLUS.
> I suspect that DEC uses the same SCSI/MSCP source code - MSCPDRV.MAC - for
> RSX, IAS, and RSTS.  I would guess that the hang problem is a failure to
> release the SCSI bus during rewind.

  I just looked at the source code for the RSTS MSCP/TMSCP stuff, and it's
just RSTS stuff. There may well be a common source set (or at least a com-
mon ancestor) for the RSX variants and IAS, but the RSTS stuff is seperate.

	Terry Kennedy		Operations Manager, Academic Computing
	terry@spcvxa.bitnet	St. Peter's College, US
	terry@spcvxa.spc.edu	(201) 915-9381