Networker

Re: [Networker] Slow Win2k backup with lots of files

2006-06-07 19:21:19
Subject: Re: [Networker] Slow Win2k backup with lots of files
From: Siobhán Ellis <siobhanellis AT HOTMAIL DOT COM>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Thu, 8 Jun 2006 09:19:01 +1000
Warren,

beg to differ. When your pieces are on many tapes, it is a pain. This is my direct experience.

However, I agree it is the best solution.

Siobhan


From: Steve Warren <swarren AT CRESEND DOT COM>
Reply-To: Legato NetWorker discussion <NETWORKER AT LISTSERV.TEMPLE DOT EDU>, Steve Warren <swarren AT CRESEND DOT COM>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: Re: [Networker] Slow Win2k backup with lots of files
Date: Wed, 7 Jun 2006 16:15:31 -0400

If you try the suggestions recommended here and it doesn't solve your problem, I suggest you seriously consider SnapImage. It has it's limitations but restore performance from tape is not the issue it's been represented to be here. And on a big slow disk with millions of files, there's no faster way to get file-granular backups to tape.

SnapImage sorts all the file extents in the restore list before it starts so the restore is done in a single pass. Pieces get restored in tape order and assembled on the fly. It's certainly no slower than restoring from a normal multiplexed tape.

There are things about it that are a little more cumbersome though so you should make sure you really have a need for it before you go that direction.

> > > I think that other person meant that maybe there'd be a way
> > > to use the "update" function within nsradmin to update the
> > > client's list of savesets to be backed up, in an automated fashion.
> >
> > I have no problem scripting nsradmin, but what does updating the client
> > record more frequently accomplish?
>
> I read the message not that it needs to be terribly frequent, but that
> it needs to be automated so that human intervention isn't needed to pick
> up new folders.
>
> The frequency just gives the maximum time that can elapse between the
> creation (and population) of a folder and having it hit the backups.
> Daily would probably be sufficient in most environments.
>
> --
> Darren Dunham                                           ddunham AT taos DOT 
com
> Senior Technical Consultant         TAOS            http://www.taos.com/
> Got some Dr Pepper?                           San Francisco, CA bay area
>          < This line left intentionally blank to confuse you. >
>
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