[nflug] backups on an nfs server

[Mark Musone]

I'm a little cleared up, but now you are mentioning a samba server..so I'm
all confused again :)

Heres what my opinion is:

It would be much better to run the backups on the local fileserver.

If you are saying the fileserver does not have that much space, I would then
still try to do the backup locally, and then transfer the complete backup
file wherever else afterwards.

You can even do both together by simply piping tar into ssh (which is an
extremely common way to do backups):

"tar cf - / | ssh destserver dd of=/dest/server/filename/"

The point being that when you are tarring a file, it does a LOT of
filesystem lookups for each and every file that goes into the tarball.
Secondly, it needs to handle file locking. Doing tons of fstats() and file
locks would end up being expensive and slightly unreliable, and slow.

You want to try and do all of the on your local system, which would
eliminate or considerably speed it up. You can then transfer the single
tarball over the network..or even get crazy and just copy it via nfs or
samba. You're only dealing with a single file now, so the above converns are
moot.

-Mark



-----Original Message-----
From: nflug-bounces at nflug.org [mailto:nflug-bounces at nflug.org] On Behalf Of
eric
Sent: Thursday, August 03, 2006 3:13 PM
To: nflug at nflug.org
Subject: Re: [nflug] backups on an nfs server

Mark I was very unclear how explained, my apologies.  Your answer was my
question would it be better to just run tar on the nfs server itself and
then running -u after the intial tar package is created... I said
increment because I was used to ntbackup which is similar or the same
thing as -u update in tar

my only concern for running the backup on the samba server was their is
limited space and I want to have a monday - friday backup which would
eat all the space, thus I put the backups on a larger server the nfs server.

Thank you,
Eric

Mark Musone wrote:

>Why can't you just run the tar on the server itself?
>What do you mean by "incrementing" ?
>
>-Mark
>
>
>-----Original Message-----
>From: nflug-bounces at nflug.org [mailto:nflug-bounces at nflug.org] On Behalf Of
>eric
>Sent: Thursday, August 03, 2006 1:30 PM
>To: nflug at nflug.org
>Subject: [nflug] backups on an nfs server
>
>which would be better with a mounted nfs share from a nfs server.
>
>executing a tar and gzip command to package a home dir on the servers
>share from the client or
>executing a tar and gzip command to package a home dir on the client and
>then moving the package to the servers share?
>
>
>I will want to increment files once a full backup is created, so I'm not
>sure which would be better in the long run.
>What seems to be quicker is to execute the increment on the share across
>the network instead of always moving/coping a large package from client
>to server.
>
>Thank you for your input,
>Eric
>
>
>
>
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