On Mar 2, 2004, at 4:27 PM, Josh Berkus wrote:
> Vivek,
>
>> I did a bunch of testing with different RAID levels on a 14 disk
>> array. I finally settled on this: RAID5 across 14 disks for the
>> data, the OS (including syslog directory) and WAL on a RAID1 pair on
>> the other channel of the same controller (I didn't want to spring for
>
> With large RAID, have you found that having WAL on a seperate array
> actually
> boosts performance? The empirical tests we've seen so far don't seem
> to
> support this.
Yes, it was a noticeable improvement.