> one other note, you probably don't want to use all the disks in a raid10 > array, you probably want to split a pair of them off into a seperate > raid1 array and put your WAL on it. Is a RAID 1 array of two disks sufficient for WAL? What's a typical setup for a high performance PostgreSQL installation? RAID 1 for WAL and RAID 10 for data? I've read that splitting the WAL and data offers huge performance benefits. How much additional benefit is gained by moving indexes to another RAID array? Would you typically set the indexes RAID array up as RAID 1 or 10?
