Re: Disk mirroring

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#1246

From: Mark T. Dornfeld
Date: Mon, 16 Nov 1992 18:40

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In article <1992Nov13.195158.6212@cronkite.ocis.temple.edu> woneill@cronkite.ocis.temple.edu (Bill O'Neill) writes:
>Pretty basic question: Anyone know of any software (or hardware) that will
>support disk mirroring on NeXTs?

No, but I'd like to see a software-only solution to the problem.  Sun's 
disk utilities are pretty elegant.  They use the standard SCSI hardware
including the Sbus SCSI interface.  The mirrors work through the
installation of 'metadisk' drivers, that take care of writing to the
'submirrors' transparently.

This eliminates the need for specialized controllers and 'expensive' RAID
setups.  If performance is a problem, I think 10Mbit SCSI should eventually
fix it.

As more and more NeXT's are pressed into server roles, mirroring, striping,
and other high-availability technologies will be needed.

How about it NeXT?

-- 

Mark T. Dornfeld                              Voice: (416) 234-9048
CYANTIC Systems                               Facsimile: (416) 234-0477
101 Subway Crescent Suite 2103                Email: mark@cyantic.com

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Message-ID: <1992Nov16.184036.21762@cyantic.com>

Path: arc1-ca.pugleaf.net!sparky!uunet!uunet.ca!cyantic!mark

References: <1992Nov13.195158.6212@cronkite.ocis.temple.edu>

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Newsgroups: comp.sys.next.hardware
Path: arc1-ca.pugleaf.net!sparky!uunet!uunet.ca!cyantic!mark
From: mark@cyantic.com (Mark T. Dornfeld)
Subject: Re: Disk mirroring
Organization: CYANTIC Systems
Date: Mon, 16 Nov 1992 18:40:36 GMT
Message-ID: <1992Nov16.184036.21762@cyantic.com>
References: <1992Nov13.195158.6212@cronkite.ocis.temple.edu>
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