Re: DBSPACES and RAID
From: johnh <john.horton@cognito.co.uk> >Has anyone had any experience of setting up DBSPACES on a RAID 5 machine > >(in particular - running linux) >I'm trying to make sure that there won't be any problems when I do the >final port off the (un-RAIDed) HP machine to a RAIDed linux box - so >would appreciate any advice in this area >Thanks very much in advance for helpful hints, advice and horror stories > >on this issue ! I have just this week lost a production RAID-5 box. The demise was as spectacular as it was sudden. In fifteen years, I have never seen a box go like that. I wouldn't touch RAID 5 with someone else's keyboard. Don't do it. Really. ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com
"Obnoxio The Clown" <obnoxio@hotmail.com> writes: > From: johnh <john.horton@cognito.co.uk> > > >Has anyone had any experience of setting up DBSPACES on a RAID 5 machine > > > >(in particular - running linux) > >I'm trying to make sure that there won't be any problems when I do the > >final port off the (un-RAIDed) HP machine to a RAIDed linux box - so > >would appreciate any advice in this area > >Thanks very much in advance for helpful hints, advice and horror stories > > > >on this issue ! > > I have just this week lost a production RAID-5 box. The demise was as > spectacular as it was sudden. In fifteen years, I have never seen a box go > like that. I wouldn't touch RAID 5 with someone else's keyboard. > > Don't do it. Really. Tell me more, tell me more! Thomas
In article <aeldhseu.fsf@localhost.localdomain>, Thomas Parsli <thomas.parsli@startsiden.no> wrote: > "Obnoxio The Clown" <obnoxio@hotmail.com> writes: > > > From: johnh <john.horton@cognito.co.uk> > > > > >Has anyone had any experience of setting up DBSPACES on a RAID 5 machine > > > > > >(in particular - running linux) > > >I'm trying to make sure that there won't be any problems when I do the > > >final port off the (un-RAIDed) HP machine to a RAIDed linux box - so > > >would appreciate any advice in this area > > >Thanks very much in advance for helpful hints, advice and horror stories > > > > > >on this issue ! > > > > I have just this week lost a production RAID-5 box. The demise was as > > spectacular as it was sudden. In fifteen years, I have never seen a box go > > like that. I wouldn't touch RAID 5 with someone else's keyboard. > > > > Don't do it. Really. > > Tell me more, tell me more! > > Thomas > I agree. We have found that RAID-5 is 20 to 30 percent (sometimes more) slower than using RAID 0+1 when there are a lot of writes. If it is just reads, it's ok. Harry Johnson Sent via Deja.com http://www.deja.com/ Before you buy.
Obnoxio The Clown wrote: > > From: johnh <john.horton@cognito.co.uk> > > >Has anyone had any experience of setting up DBSPACES on a RAID 5 machine > > > >(in particular - running linux) > >I'm trying to make sure that there won't be any problems when I do the > >final port off the (un-RAIDed) HP machine to a RAIDed linux box - so > >would appreciate any advice in this area > >Thanks very much in advance for helpful hints, advice and horror stories > > > >on this issue ! > > I have just this week lost a production RAID-5 box. The demise was as > spectacular as it was sudden. In fifteen years, I have never seen a box go > like that. I wouldn't touch RAID 5 with someone else's keyboard. Can't say I did not warn everyone! RAID10 RAID10 RAID10 RAID10 RAID10 RAID10 RAID10 RAID10 RAID10 RAID10 RAID10 RAID10 RAID10 RAID10 RAID10 RAID10 -- Art S. Kagel & Family kagel@erols.com