Re: [GENERAL] Scalability to very large databases under Linux

> Dear Folks,
>
> We have been running 6.4.2 under Linux on a dual Xeon box
> with mostly good success. Our current dataset is 20 million records
> of mostly numerical data (56 fields of floats [70%], ints [20%] and
> a few text fields [10%]). The performance is acceptable, the only
> problem so far has been the difficultly in floating type promotion
> "confusing" the optimizer.
>
> Our database is about to expans to 150 million records. Given
> sufficient diskspace (e.g. a larger RAID array) will postgres
> perform on this volume? Are there any gotchas? General comments
> from people with experience with databases of this volume under
> postgres?

The only problem I could see immediately is that the Linux ext2 filesystem has
a 2GB limit on any one file. Postgresql has functionality to get round that (as
was discussed a few months ago on the list) but it apparently causes problems
in some instances. I suggest you look through the archives for this one.