Sounds to me like to want to dump a bunch of data into a RAM drive
(partition in memory) then write the data directly to the locally
attached drive, using tar.

Paul

> -----Original Message-----
> From: veritas-bu-admin AT mailman.eng.auburn DOT edu 
> [mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On Behalf Of 
> ida3248b AT post.cybercity DOT dk
> Sent: December 14, 2004 7:51 AM
> To: Ed Wilts
> Cc: veritas-bu AT mailman.eng.auburn DOT edu
> Subject: Re: [Veritas-bu] Performance test of tape drives
> 
> 
> Thanks Ed
> 
> But that's hasn't what I wanted to do.
> 
> I wanted to find the max speed of tape drive(s) connected to 
> the media 
> servers without having to worry about if network or disk was 
> a bottleneck.
> 
> Regards
> Michael
> On Tue, 14 Dec 2004 06:41:03 -0600, Ed Wilts wrote
> > On Tue, Dec 14, 2004 at 01:32:19PM +0100, 
> ida3248b AT post.cybercity DOT dk 
> > wrote:
> > > I need to test our tape drives outside NBU to se what max 
> throughput is.
> > > 
> > > I thought there was a thread about this but I can't find it.
> > > 
> > > I want to eliminate network/disk.
> > 
> > I found a network testing utility called iperf that I ran between a
> > medai server and one of my clients.  It helped me prove 
> that we did not
> > have the network problem I thought we had.  iperf lets you go from
> > memory to memory between hosts.  My tests were between Linux and
> > Windows.  I wasn't able to get the Solaris version built 
> but then I'm
> > not a developer either.
> > 
> > There's supposed to be a way of doing a NetBackup command 
> but to have
> > the media server throw the data away instead of writing it to tape 
> > but I can't remember how this is done.  That lets you test client 
> performance
> > as well as network.  I have seen client CPU be a limiting 
> factor too.
> > 
> > -- 
> > Ed Wilts, Mounds View, MN, USA
> > mailto:ewilts AT ewilts DOT org
> 
> 
> --
> Cybercity Webhosting (http://www.cybercity.dk)
> 
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