Subject RE: [firebird-support] Re: Raid 0 or not ?
Author Leyne, Sean
> Leyne, Sean wrote:
> > > For a Database of 20 GB, regarding the speed, is it better to use
> > > 0 or not ? I read that read 0 is twice more faster BUT is it true
> when
> > > we speak about only one file (the .GDB) ?
> >
> > RAID 0 is a little faster than RAID 1 when it comes to read
> performance.
> >
> > However, but the reliability/resiliency which RAID 1 provides makes
> it
> > "illogical" (read: DO NOT DO IT!!!!) to use RAID 0 for any production
> > purposes.
> I wonder, am I missing something? In general you don't hesitate to put
> single-disk systems in production environments.

I would *never* allow a client to run a single-disk system.

> Is RAID0 more prone to crashes than a single disk? Obviously, the expected
> MTBF for a set of two disks is shorter than just one of them, but is it
> really *that* much shorter?

I am not a statistician to provide the exact numbers but my understanding is that the answer is most definitely Yes!

> In other words, if I feel quite at ease with a single disk, should I really
> worry a lot about a 2-disk RAID0 system?

It you care about fault-tolerance then a single disk or RAID 0 setup ***should NEVER be used***.