home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: comp.sys.ibm.ps2.hardware
- Path: sparky!uunet!scifi!watson!donut.endicott.ibm.com!mike
- From: mike@donut.endicott.ibm.com ()
- Subject: Re: What is the best mca scsi adaptor for ps/2 ?
- Sender: @watson.ibm.com
- Message-ID: <1993Jan12.170438.46553@watson.ibm.com>
- Date: Tue, 12 Jan 93 17:04:38 GMT
- Reply-To: kincer@owgvm6.vnet.ibm.com
- References: <mtranle.726602363@theoden> <79680@hydra.gatech.EDU>
- Organization: IBM FSC Owego
- Lines: 44
-
- In article <79680@hydra.gatech.EDU>, hhaas@mal-s2.gatech.edu (Harry
- Haas) writes:
- |> In article <mtranle.726602363@theoden> tranle@intellicorp.com writes:
- |> >Hi,
- |> >I am looking for a mca scsi adaptor for my ps/2 mod80 running aix 1.2.1.
- |>
- |> I used to run AIX on my model 80, with a Maxtor 660 MB SCSI disk.
- |>
- |> My choice was the IBM non-cache controller. My experience with AIX is
- |> that it is very particular about the hardware - wanting only IBM devices.
- |> I played it safe, and was not disapointed. THe controller was relatively
- |> inexpensive, installed flawlessly, and seemded transparent to both DOS
- |> and AIX. (i.e. looks just like any other drive: no ASPI4DOS.SYS, etc.)
- |>
- |> I concluded there was no need for the caching controller, as UNIX does
- |> it's own caching.
- |>
- |> One thing though: If you plan to use a SCSI disk greater than 512 MB
- |> as your BOOT disk, beware. There was a problem with AIX that limited
- |> boot disk size to 512 MB. Last I heard, they had a work-around out and
- |> were working on a fix. I believe the fix was nothing more than making
- |> more than one partition with the boot partition less than 512MB.
- |>
- |> Good luck.
- |>
- |> hh
- |> ---
- |> Harry Haas GTRI/RIDL/SB | Georgia Tech Research Institute
- |> Research Engineer II | 225 North Ave.
- |> harry.haas@gtri.gatech.edu | Atlanta Georgia, 30332
- |> "I know engineers . . . . they *love* to change things" - Bones
- |> --
- |> Harry Haas GTRI/RAIL/TDD "What makes it DO that!?" - Bones
- |> Georgia Institute of Technology, Atlanta Georgia, 30332
- |> uucp: ...!{decvax,hplabs,ncar,purdue,rutgers}!gatech!prism!hh2
- |> Internet: hh2@prism.gatech.edu HHaas@GTRI01.GATECH.EDU
-
- One thing to consider...the cache controller is a 32-bit MCA adapter
- where the non-cache is only 16-bits. I recommend the cache controller
- for best SCSI performance.
-
- Mike __ __o / "Everythin's IMHO,
- Kincer@owgvm6.vnet.ibm.com __ \<, / irrespective of my
- ~~~~~~~~~~~~~~~~~~~~~~~~~~ ______()/ ()______/ employer's"
-