Bo Yang wrote:
> Hi
> I want to set up a back up system on my machine. The files I want to
> back up is about more than 6G big. And I will create a incremental
> back up solution. All the files are distributed in more than 20
> directories. So, there are at least options here:
> 1. Create only one tar file and snar file (the file used for gnu tar
> for increamental back up) of the home system.
> 2. Create one tar and sanr file for each sub directories.
>
> I do not know which one is better. I want a low cost solution. I
> mean low cost solution as less back up time and less CPU usage and
> keeping the system running as normal as well as doing not bring the
> response speed for normal service.
>
> Thanks in advance! Any advice will be highly appreciated! Thanks
> again!
>
> Regards!
> Bo
>

One file is better.
Less admin overhead -> less costs.


--
Michael Tosch @ hp : com

On Mon, 29 Oct 2007 20:11:55 +0100, Michael Tosch wrote:
> Bo Yang wrote:
>> Hi
>> So, there are at least options here:
>> 1. Create only one tar file and snar file (the file used for gnu tar
>> for increamental back up) of the home system.
>> 2. Create one tar and sanr file for each sub directories.

> One file is better.
> Less admin overhead -> less costs.

Many files is better. Smaller files -> quicker restores -> better
control.

As with so many other things, "it depends" is the answer. I find dump
files very nice, as I can do an interactive restore and traverse the
dump file as if I was in a filesystem, select what I want, and extract
only that. The real answer is, instead of rolling your own, find a
backup package that meets your needs and budget. amanda may fit this
criteria.

Dave Hinz writes:

> only that. The real answer is, instead of rolling your own, find a
> backup package that meets your needs and budget. amanda may fit this
> criteria.

Amanda usually requires quite a bit of karma to get up an running.
When it is running it is _very_ nice to work with.

--
Thorbjørn Ravn Andersen

On Oct 29, 5:42 pm, Bo Yang wrote:
> Hi
> I want to set up a back up system on my machine. The files I want to
> back up is about more than 6G big. And I will create a incremental
> back up solution. All the files are distributed in more than 20
> directories. So, there are at least options here:
> 1. Create only one tar file and snar file (the file used for gnu tar
> for increamental back up) of the home system.
> 2. Create one tar and sanr file for each sub directories.
>
> I do not know which one is better. I want a low cost solution. I
> mean low cost solution as less back up time and less CPU usage and
> keeping the system running as normal as well as doing not bring the
> response speed for normal service.
>
> Thanks in advance! Any advice will be highly appreciated! Thanks
> again!
>
> Regards!
> Bo

Depending on what you need ... try using rsync.
kjteoh

kjteoh@gmail.com :
> On Oct 29, 5:42 pm, Bo Yang wrote:
>> Hi
>> I want to set up a back up system on my machine. The files I want to
>> back up is about more than 6G big. And I will create a incremental
>> back up solution. All the files are distributed in more than 20
>> directories. So, there are at least options here:
>> 1. Create only one tar file and snar file (the file used for gnu tar
>> for increamental back up) of the home system.
>> 2. Create one tar and sanr file for each sub directories.
>>
>> I do not know which one is better. I want a low cost solution. I
>> mean low cost solution as less back up time and less CPU usage and
>> keeping the system running as normal as well as doing not bring the
>> response speed for normal service.
>>
>> Thanks in advance! Any advice will be highly appreciated! Thanks
>> again!
>>
>> Regards!
>> Bo
>
> Depending on what you need ... try using rsync.

Rsync? Is that a back up tool? Thanks!

Regards!
Bo

Michael Tosch :
> Bo Yang wrote:
>> Hi
>> I want to set up a back up system on my machine. The files I want to
>> back up is about more than 6G big. And I will create a incremental
>> back up solution. All the files are distributed in more than 20
>> directories. So, there are at least options here:
>> 1. Create only one tar file and snar file (the file used for gnu tar
>> for increamental back up) of the home system.
>> 2. Create one tar and sanr file for each sub directories.
>>
>> I do not know which one is better. I want a low cost solution. I
>> mean low cost solution as less back up time and less CPU usage and
>> keeping the system running as normal as well as doing not bring the
>> response speed for normal service.
>>
>> Thanks in advance! Any advice will be highly appreciated! Thanks
>> again!
>>
>> Regards!
>> Bo
>>
>
> One file is better.
> Less admin overhead -> less costs.

With one file, the backup file will be more than 10G big. Does so big a
file affect the speed of back up ? Or does such a big file make the
backup process resource consuming?

Regards!
Bo