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From: miorelli@pwa-b.UUCP (Bob Miorelli)
Newsgroups: net.unix-wizards
Subject: help on disk to disk copy
Message-ID: <192@pwa-b.UUCP>
Date: Mon, 27-Jan-86 14:24:16 EST
Article-I.D.: pwa-b.192
Posted: Mon Jan 27 14:24:16 1986
Date-Received: Thu, 30-Jan-86 05:49:02 EST
Organization: Pratt & Whitney Aircraft, E. Hartford, CT
Lines: 15

I have a system with two RA81 disks.  I need only one to run the
system and would like to use the other one as a backup.  What's the
best way to make a copy disk-to-disk on a per day basis??
I've tried dump piped into restore and it takes forever.  Likewise
with copying the 'c' partition using dd, even with big block sizes.
Also, I run into bad block problems on the RA's doing the platter
copy.  This must be done on a not quiet quiescent system which is
another problem.  (My best success has been to dump to tape and then
a restore).  Any hints and syggestions would be appreciated.

-- 

-->BoB Miorelli, Pratt & Whitney Aircraft
           also, H & R Block tax perparer and Instructor
pwa-b!miorelli