Networker

Re: [Networker] Does cloning unmuliplex and make recovery faster?

2007-01-19 10:16:51
Subject: Re: [Networker] Does cloning unmuliplex and make recovery faster?
From: George Sinclair <George.Sinclair AT NOAA DOT GOV>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Fri, 19 Jan 2007 09:58:46 -0500
rader AT GINSENG.HEP.WISC DOT EDU wrote:

> > I find it hard to believe that cloning preserves multiplexing, it's my
> > understanding that nsrclone goes one by one, SSID to the next SSID
> > cloning each singly before moving on to the next

> It doesn't need to do that (at least not in the situations I've used
> it), and it's very easy to test.
> > Instead of copying one ssid at a time, it can maintain a list of ssids.
> As it streams a source volume, data from any matching ssid is copied to
> a destination volume.  This has the big benefit of requiring only a
> single pass on a source volume.

And so for many years we've been semi-manually doing something like...

 BEGIN='05Jan07 2359'; END='06Jan07 2359'
 QUERY="'!incomplete,level=full,'savetime>$BEGIN,savetime<$END"
 mminfo -r ssid -q "$QUERY" > ssidlist
 nsrclose -S `cat ssidlist`

Is there a better way these days?

How about just nsrclose -b pool -S -f ssidlist

steve - - - systems & network manager
high energy physics
university of wisconsin

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--
George Sinclair - NOAA/NESDIS/National Oceanographic Data Center
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