Re: Logging - to RAID vs. mirrored non-raid disk.
Posted in 1996
Dave K. Lahoti wrote: > > Glenn Travis wrote: > > > > We are having a debate over whether it is better to put the log files on > > cached RAID, or mirrored non-raid pairs. While some RAID controllers have > > fast write cache and compensate for the 25% decrease in write rates, is is > > still better to thave heavily written files (logs) on non-raid disk? > > > > What are most people doing and why? > > -- > > > > I think you would have to look at your particular situation. > > If your writes are so heavy to the point that you no longer benefit > from the fast write cache, then I would stick to mirrorred non-raid, > otherwise Raid would be a good choice since you would get fast > throughput together with parity backup. A lot less costly than 2x disk > when using non-raid mirroring. > True, but since we are only talking about your log files, I would say that the cost of mirroring only the logs is minimal. 2 gig drives are what? ($500 apiece) 1 GIG drives are less. Anyone have > 2 gig log files ? -Mikey