[rrd-users] Rrdtool restore problems

[Tobias Oetiker]

Today Alex van den Bogaerdt wrote:

> On Wed, Aug 29, 2007 at 10:51:43AM -0400, Shriver, Daniel wrote:
>
> > Also, the error message seems odd to me in that it seems to be not even
> > understanding what version I'm using when it says "detected version . "
> > and why doesn't it say "the version 0023 restore tool" since I'm using
> > 1.2.23?
>
> [note: not 100% sure about every little detail]
>
> The database can be version 1 or version 3.
> The software can be version 1.0.x or 1.2.x
> Software version 1.0.x cannot cope with version 3 databases.
> Software version 1.2.x can cope with version 1 databases.

yes
>
> If you update a version 1 database with version 1.2.x software,
> the database will be upgraded to version 3.

no ... it will stay version 1

> If you dump a database version 1, using 1.0.x software, you cannot
> restore it using software version 1.2.x software.

yes you can if 1.2 is 'new' ...


> > Any tips?
>
> Don't mix 1.0.x and 1.2.x software.
> Update your existing databases using version 1.2.x software only.
> Dump and restore your existing databases using version 1.2.x software only.

as long as you use 1.0 to generate rrd files you can update them
with 1.2

cheers
tobi


-- 
Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten
http://it.oetiker.ch tobi at oetiker.ch ++41 62 213 9902