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Re: Network Backup

daemon@ATHENA.MIT.EDU (Allen Francom)
Mon Nov 11 18:03:37 1996

Date: Tue, 12 Nov 1996 05:49:52 -0800 (PST)
From: Allen Francom <afrancom@numedics.transport.com>
To: "Hal L. DeVore Jr." <hdevore@crow.bmc.com>
cc: redhat-list@redhat.com, Ray Curtis <ray@fred.net>
In-Reply-To: <199611112152.PAA06577@erehwon.bmc.com>
Resent-From: redhat-list@redhat.com
Reply-To: redhat-list@redhat.com



Hmn.

I've been using 8mm DAT and haven't really had the opportunity to have a 
tape error since it builds in its own Error Correcting Code fairly well.

I see what you mean, however.  Old style tapes with a tar write...

Hmn...  I'll have to think about this.

Cpio would be more of a block by block thing that wouldn't get too 
terribly upset if a block died here or there... The others would still be 
okay, but tar, being a continuous stream of data would get 
interrupted from that point forward ?

True ?  

Is there a transportability issue with cpio ?

THX
-AEF



On Mon, 11 Nov 1996, Hal L. DeVore Jr. wrote:

> afrancom@numedics.transport.com said:
> > Tar is the tool of choice, it seems.
> Not for my money or backups it ain't.  The combination of tar plus tapes is 
> deadly because tar can't recover from errors worth diddly.  And if you 
> compress then that becomes can't recover from errors at all.  I prefer cpio 
> or afio.
> 
> This gets hashed out periodically here, as I recall, and each time it's 
> brought up it becomes the Thread That Wouldn't Die.  Just try searching the 
> maillist archives and see how many hits you get on "backup".
> 
> Hal DeVore (hdevore@bmc.com)
> 
> 
> 
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