Networker

Re: [Networker] Why is scanner so slow?

2010-03-01 14:48:04
Subject: Re: [Networker] Why is scanner so slow?
From: A Darren Dunham <ddunham AT TAOS DOT COM>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Mon, 1 Mar 2010 19:46:51 +0000
On Mon, Mar 01, 2010 at 01:27:11PM -0600, Tim Mooney wrote:
> In regard to: Re: [Networker] Why is scanner so slow?, A Darren Dunham 
> said...:
> >I don't *think* it does record forwarding during only-media rebuilds, so
> >it should be about the same time.
> 
> I've been told by EMC support that it is faster to use scanner -m followed
> by nsrck -L7 (if the index saveset becomes available as a result of the
> scanner -m) than it is to use scanner -i.  I've never timed it, so I can't
> vouch for the accuracy of that information.

I can well belive it, I'm just not sure of the mechanism that makes that
happen.  I think even the -m still has to read through the mediafile to
identify which records are part of the SSID.  Multiple SSIDs can be
present during multistreaming.  

-- 
Darren

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