We're upgrading our Linux box, and moving from CentOS (quad core AMD, 8GB RAM, SATA drive) to RedHat OS (dual quad core Xeon, 8GB RAM, SAS drives) and was wondering... what will provide the best possible outcome in terms of hard drive configuration:
- OS on 146GB SAS, Data (including backup) on separate 146GB SAS
- OS, data, and backup on dual 450GB SAS in RAID configuration
- OS, data on dual 146GB SAS in RAID configuration, with backup on third drive
Looking to maximize performance (PHP applications primarily), speed of backup processes, which run once per day, stability, and security. Thoughts? Comments?