> -----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. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
