Networker

Re: [Networker] slow or failed backup due to too many files

2003-07-02 16:28:21
Subject: Re: [Networker] slow or failed backup due to too many files
From: George Sinclair <George.Sinclair AT NOAA DOT GOV>
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Date: Wed, 2 Jul 2003 16:28:10 -0400
Also check to ensure that the affected client is operating at
full-duplex with the switch or hub. Half-duplex has been resposible for
many a slow backup. If this client is outside a firewall there could be
something there, too.

George

T M wrote:
>
> Adam,
>
> Any time a system with a  large number of files is experiences slow backups
> (and recovers), I will always point to the possible solution of dispersing
> or 'off loading' some of the files to another system.
> I am not sure which particular database these files are, but if you are able
> to break up this information and divide it among some other machines, then I
> think you would be on the right track towards a solution.
>
> I would be remiss to not ask you if all these machines you have tried this
> on are equally powerful or not?  Is there ample disk space, CPU power,
> memory here?
> Likewise, do you have current hardware drivers? Is your Operating System
> sufficiently patched? Are there any possible firmware issues in your network
> peripherals that could be to blame?
>
> My $0.02
>
> Good luck,
> Tom
>
> -----
> >From: Adam Jackson <adam.jackson AT BELL DOT CA>
> >Reply-To: Legato NetWorker discussion <NETWORKER AT LISTMAIL.TEMPLE DOT EDU>,
> >Adam Jackson <adam.jackson AT BELL DOT CA>
> >To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
> >Subject: [Networker] slow or failed backup due to too many files
> >Date: Wed, 2 Jul 2003 13:34:42 -0400
> >
> >
> >I have a lan running 100m full backing up a number of Sun boxes, all of the
> >boxes backup very quickly expect one (<100k/s at times).
> >The server I am having problems with has a very large file system (in terms
> >of number of files).  It contains an old database that uses a flat file
> >system.  The database consists of about 700,000 plus very small files layed
> >out on many individual directories, which I believe is the result of the
> >slow backups which ultimately end up failing.  I have transferred this
> >filesystem to other machines and still have the same problems, so I am
> >pretty sure it is not the machine, but the large number of small files on
> >it.
> >
> >Is there any way to tweek networker to handle backing up a large number of
> >small files ??
> >
> >Thanks in advance for you help
> >
> >Adam
> >adam.jackson AT bell DOT ca
> >
> >--
>
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