Re: [PERFORM] Optimal settings for RAID controller - optimized for writes

2014-02-17 Thread DFE
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

Re: [PERFORM] Specifications for a new server

2014-05-06 Thread DFE
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