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Re: Survey .. how many domains do you host? (Now RAID)

The advantage is in building the RAID array as such.. It's much easier to go into a BIOS on boot and say you want these three disks in a stripe array that to install the raidtools package and edit /etc/raidtab. If you check out the Promise cards the same applies.. There was discussion in the hardware scene a while ago about converting Promise Fasttrak card to a Supertrak card (I think the are the right names). Basically converting a PCI IDE card to a PCI IDE "RAID" card. It involved adding 1 resister and updating the BIOS on the card.
That shows you how little processing the card does of RAID funtions. It's not too big of a deal as there was also an article on Anandtech a while back testing how much CPU time was used when software RAID was setup (http://www.anandtech.com/storage/showdoc.html?i=1491&p=1). Have a read.. will fill in some holes and explain it better than I can here. Just remember the HPT is comparable to the Promise Card 

Also another article you might find helpful

http://www.anandtech.com/storage/showdoc.html?i=913&p=1

Hope this helps

At 11:19 AM 11/3/01 +1100, you wrote:

Hi Dave...

Hum... if the Highpoint chipsets are merely IDE controllers... whats the
advantage to using them over the regular plain vanilla generic IDE
controller cards?

Don't they offload ANY work from the processor at ALL? They have to have
SOME sort of benefit... otherwise, why market them as RAID controllers?

Sincerely,
Jason

----- Original Message -----
From: "Dave Watkins" <debian-isp@snorks.dyndns.org>
To: <debian-isp@lists.debian.org>
Sent: Saturday, November 03, 2001 10:07 AM
Subject: Re: Survey .. how many domains do you host? (Now RAID)


>
>
> Contrary to popular belief the Highpoint chipsets are only software
RAID.
> The driver uses processor time to actually do the RAID work. The chip is
> just an IDE controller. Based on that even if it isn't supported at a
RAID
> level you can still use the software RAID avaliable in linux as the
kernel
> has had standard IDE drivers for the highpoint for a while now
>
> Hope this helps
>
> At 08:35 AM 11/3/01 +1100, you wrote:
> >On the topic of RAID...
> >
> >does anyone know if the HighPoint RAID chipsets are supported YET?
> >
> >BSD has had support for this for ages... linux in the game yet?
> >
> >Sincerely,
> >Jason
> >
> >----- Original Message -----
> >From: "James Beam" <jbeam@biznizweb.com>
> >To: <vchkpw@inter7.com>
> >Sent: Saturday, November 03, 2001 6:07 AM
> >Subject: Re: Survey .. how many domains do you host?
> >
> >
> > > Wouldn't something like this totaly depend on the hardware resources
and
> > > general config/maintenance of the server?
> > >
> > > I can tell you that one of my servers running an older copy of
> >qmail/vchkpw
> > > is running over 800 domains with lots of steam to spare (each domain
is
> > > minimal traffic). Hardware is a PIII733 w256MB ram and 30GIG EIDE
drives
> > > (promise mirror)
> > >
> > > ----- Original Message -----
> > > From: "alexus" <ml@db.nexgen.com>
> > > To: "Steve Fulton" <steve@esoteric.ca>; <vchkpw@inter7.com>
> > > Sent: Friday, November 02, 2001 11:49 AM
> > > Subject: Re: Survey .. how many domains do you host?
> > >
> > >
> > > > um.. m'key..
> > > >
> > > > you should've state that before so no one would get wrong thoughts
> >(like i
> > > > did)
> > > >
> > > > ----- Original Message -----
> > > > From: "Steve Fulton" <steve@esoteric.ca>
> > > > To: "alexus" <ml@db.nexgen.com>; <vchkpw@inter7.com>
> > > > Sent: Friday, November 02, 2001 1:58 AM
> > > > Subject: Re: Survey .. how many domains do you host?
> > > >
> > > >
> > > > > > and who are you to do such a survey?
> > > > >
> > > > >   Down boy!  Down!  LOL!
> > > > >
> > > > >   No need to snap, I'm doing this because a PROGRAM I AM WRITING
has
> > > > > VARIABLES that need to be defined to a certain array size, as
they
> >will
> > > > hold
> > > > > FQDN's.  In order to make this program universally useful, I
would
> >like
> > > to
> > > > > know the maximum number of domains that has been (realistically)
> >hosted
> > > on
> > > > > one server.
> > > > >
> > > > >   K?
> > > > >
> > > > >     -- Steve
> > > > >
> > > > > http://www.zentek-international.com/
> > > >
> > > >
> > >
> > >
> >
> >
> >--
> >To UNSUBSCRIBE, email to debian-isp-request@lists.debian.org
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listmaster@lists.debian.org
>
>
> --
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