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Rob Owens wrote:
> Adam Goryachev wrote:
>> Rob Owens wrote:
>>> Adam Goryachev wrote:
>>>> Holger Parplies wrote:
>>>>> a) rsync full backups are only minimally more expensive than incrementals
>>>>> in
>>>>> terms of bandwidth. Still, every file needs to be completely read from
>>>>> disk
>>>>> on both sides, so there is a good reason to offer an "incremental"
>>>>> mode as
>>>>> a speedup.
>>>> BTW, 2 x rsync incrementals of the same level will transfer more data
>>>> than one full + one incremental. So for example, doing 6 incrementals
>>>> followed by a full backup can in fact transfer a lot more data than
>>>> doing 7 full backups.
>>>>
>>>> eg, if a file changes after the full backup, then each incremental
>>>> backup will re-transfer those changes. While a full will transfer the
>>>> changes but the following full/incremental will not re-transfer those
>>>> changes.
>>>>
>>> This situation can be avoided by setting IncrLevels to 1, 2, 3, 4, 5, 6
>>> This way each incremental is based on the previous incremental, and not
>>> the previous full. (Assuming you get a full backup every 7 days).
>> Also assuming you use backuppc 3.0 or newer, which means it is not
>> available for me as I am using debian stable packages. (Although, I hear
>> the next debian stable should be out pretty soon, in which case I'll get
>> the newer version then :)
>>
> Yes, that's what it sounds like. It is pretty easy, though, to install
> backuppc 3.0 on Etch. Just download the package from the debian testing
> repository, along with libfile-rsyncp-perl (if I remember correctly).
> There aren't any other dependencies as far as I know -- but I only use
> rsync as a transport, so there may be some samba stuff to download from
> testing as well.
I'm sure this has been addressed on this list before, even though it is
somewhat off-topic, so I won't respond further on this.
I like Debian stable because it is stable, doesn't change, and is
supported from a security/etc point. I know this is changing/improving,
but it isn't enough of an issue to make me go and install a mixed
stable/testing system. I have installed debian testing on a couple of
systems, mostly due to hardware support not existing in etch, but again,
once lenny is released as stable, they will all run stable....
I like packaged software, and I like stable versions of the software I
run on my systems.... especially servers.
Your preferences may vary, and you are certainly entitled to them, I
don't claim to understand your requirements, or motivation/etc, and
there are certainly valid reasons for using a mixed stable/testing, and
even running non-packaged software.
Regards,
Adam
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