Path: utzoo!mnetor!uunet!lll-winken!lll-tis!ames!pasteur!ucbvax!decwrl!purdue!i.cc.purdue.edu!j.cc.purdue.edu!pur-ee!uiucdcs!uxc.cso.uiuc.edu!uicsrd.csrd.uiuc.edu!kai
From: kai@uicsrd.csrd.uiuc.edu
Newsgroups: comp.unix.wizards
Subject: Re: Dumping over NFS
Message-ID: <43200018@uicsrd.csrd.uiuc.edu>
Date: 23 Apr 88 01:07:00 GMT
References: <6378@swan.ulowell.edu>
Lines: 17
Nf-ID: #R:swan.ulowell.edu:6378:uicsrd.csrd.uiuc.edu:43200018:000:747
Nf-From: uicsrd.csrd.uiuc.edu!kai    Apr 22 20:07:00 1988


A few months ago a public domain TAR program was posted to one of the USENET
source newsgroups that allows manipulation of remote tape archives.  It runs
a remote shell that executes DD to actually do the tape drive I/O, and pipes
the TAR output to it.  I've found it to be pretty reliable.  Maybe you can
try running this on the uVAX to see if that speeds up your dump.

I have only limited experiance with NFS, but what I saw was a three second
overhead for each file accessed, which might explain your slow dump.

If you are doing a full file system dump, why not use rdump instead?

Patrick Wolfe

Internet:  pwolfe@kai.com
UUCP:      ...!{uunet,ihnp4,ucbvax}!uiucuxc!kailand!pwolfe

The opinions expressed here are my own, NOT my employers.