Ubuntu's performance : how to speed up ?

[John DeCarlo]

On Thu, 17 Feb 2005 09:52:43 -0800, Bob Nielsen <nielsen at oz.net> wrote:
> On Thu, Feb 17, 2005 at 06:40:06PM +0100, Vincent Trouilliez wrote:
> > > And also twice the risk, right? If one of the disks go bad in a RAID-0
> > > setup, you lose all the data.
> >
> > I did think of this. But to be fair, I would think it's safer ! You have
> > two drives to hold your data, so if one fails, you lose only half of the
> > data, 

As I said before, having one drive fail for RAID-0 is a bad thing and
almost nothing is recoverable.

> I am not familiar with RAID arrays.  Is there a simple method to have
> two disks where one automatically mirrors the content of the other,
> which would protect all of the data if one of the drives were to fail?
> I realize that one could use a crontab to back things up on a regular
> basis, but wondered if there was a raid method for this.

Bob, that is what RAID-1 is.  Exactly.  In fact, if you are really
worried about losing data, RAID-1 can mirror your main drive to more
than one auxiliary hard drive.

Check out the other thread on RAID definitions for more information.

-- 
John DeCarlo, My Views Are My Own