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Date:      Wed, 17 Dec 2003 21:58:29 -0700
From:      David Bear <David.Bear@asu.edu>
To:        anubis <anubis357@optusnet.com.au>
Cc:        freebsd-questions@freebsd.org
Subject:   /dev/sa and rsa was multiple dumps to single tape
Message-ID:  <20031217215829.I11205@asu.edu>
In-Reply-To: <"from anubis357"@optusnet.com.au>
References:  <20031215165555.J32172@asu.edu> <200312162006.15235.anubis357@optusnet.com.au>

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On Tue, Dec 16, 2003 at 08:06:15PM +1000, anubis wrote:
> On Tue, 16 Dec 2003 09:55 am, David Bear wrote:
> > if I am writing multiple dumps to a single tape, is it wise to have mt
> > write a setmark after dumping each file system?
> 
> There is no real need to do this.
> 
> If you want to write dump after dump onto a tape in the one session use the 
> /dev/nsa0 device.  This device is the same as /dev/sa0 but doesnt rewind 
> between sessions.  So the tape will be ready for the next dump automatically.  
> 

thanks for all the replies.

I am wondering now what the difference is between 
/dev/sa0 and /dev/rsa0
and
/dev/nsa0 and /dev/nrsa0


-- 
David Bear
phone: 	480-965-8257
fax: 	480-965-9189
College of Public Programs/ASU
Wilson Hall 232
Tempe, AZ 85287-0803
 "Beware the IP portfolio, everyone will be suspect of trespassing"



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