I have 5 18GB disks, we have RAID5 setup presently. We have one large volume setup where all data files and database log files reside.
Presently:
---------------------
Drive C: Operating sys.
Drive DRaid5)
- data files
- log files


Question:
Should I break the RAID and create 2 partitions, one for data files (say drive E) and another for db log files (say, drive F). This will limit the total volume size, if we implement RAID1 on both volumes.
Is this worht it for recovery?

What I'd like:
-----------------
DriveC: os
DriveD: data files (RAID1)
DriveE: log files(RAID1)


I sorta understand how RAID5 works, but I am unable to specfiy which physical disks the log files reside on with RAID5 we have setup now. would like to place logs on a groupd of physical disks (makes better sense)

Not in prod yet, that's why I want to get it right now before we move there.

thanks,
AJ