> -----Mensaje original-----
> De: Scott Marlowe
>
> I think your first choice is right. I use the same basic
> setup with 147G 15k5 SAS seagate drives and the pg_xlog / OS
> partition is almost never close to the same level of
> utilization, according to iostat, as the main 12 disk RAID-10
> array is. We may have to buy a 16 disk array to keep up with
> load, and it would be all main data storage, and our pg_xlog
> main drive pair would be just fine.
>
> > Do you think a single RAID 1 will become a
> bottleneck?
> > Feel free to suggest a better setup I hadn't considered, it
> would be
> > most welcome.
>
> For 12 disks, most likely not. Especially since your load is
> mostly small randomish writes, not a bunch of big
> multi-megabyte records or anything, so the random access
> performance on the 12 disk RAID-10 should be your limiting factor.
>
Good to know this setup has been tryied succesfully.
Thanks for the comments.
