Hi,
I configured a similar architecture some months ago and this is the best
choice after some pgbench and Bonnie++ tests.
Server: DELL R720d
CPU: dual Xeon 8-core
RAM: 32GB ECC
Controller PERC H710
Disks:
2xSSD (MLC) Raid1 for Operating System (CentOS 6.4)
4xSSD (SLC) Raid10 for WAL archive and a
I can suggest to have a disks' layout using at least two RAIDs:
1) RAID10 SSD (or 15kRPM HDD) SAS for O.S. and "pg_xlog" folder where PG
writes WAL files before checkpoint calls.
2) RAID10 using how many span is possible for the default DB folder.
Regards,
2014-05-06 11:13 GMT+02:00 Johann Spi