hi ya
if you have 4 18Gb drives...
why not use 3 drives as stripped disks...
and compress backups of those 3 drives to the 4th disk...
use the entire 120Gb of disk space...
if you have 40 users doing cvs...
- you should stripe your data drives...
- disks should be on different cables for striping...
hda + hdd
hdb + hdc
problem with ide disks...
- if you are reading from hda.... you cannot read from hdb
at the same time...unlike scsi disks...
- but unlike scsi.... ( one cable )
- you have 2 ide cables so you can read off 2 disks at the
same time
to me... it doesn't make sens to use 3 drives in raid5...
- 2 drive = data.... 1 drive is the parity...
( 66% of disk utilization
- and one of the 3 disks will always be slow
with 5 disks raid5...
- 4 drives = data ,... 1 drive is the parity
- 80% disk utilization
-- if you use Mirror or stripping
- you can squeeze more data onto t...
hda = system
hdb+hdc == raid0 stripping
hdd for backups...
-- no wasted disk space
-- better still...
- use raid10 w/ root-raid disks
(if you wanna protect your system disk too )
hda+hdd == md0
hdb+hdc == md1 == mirror or md0
-- lots of fun....lots of options
-
- picture of raid differences
-
http://www.linux-consulting.com/Raid/Differences.gif/
have fun raiding...
alvin
http://www.Linux-1U.net ... 500Gb 1U Rad5 ...
On Wed, 18 Apr 2001, Karsten M. Self wrote:
> on Wed, Apr 18, 2001 at 03:15:42PM +0200, Daniel de los Reyes ([EMAIL
> PROTECTED]) wrote:
> > I have a new server with 4 18 Gb drives. 3 of them will be on an array
> > in a RAID 5.
> >
> > That would give me :
> >
> > Drive 1 : 18 Gb
> > Raid 5 : about 36 Gb
> >
> > Drive 1 is supposed to hold system and the raid array to hold data.
> >
> > The server will have about 40 users with a disk cuota of 100-150 mb
> > Ftpserver that may grow considerably.
> > A couple of CVS repositories (in /var/ )
> > Mail for users
> > Oracle, a Lotus Domino server and a Java Development Kit are a few big
> > things I can think of now...
> >
> > Can you suggest me how to partition the drives?
>
> My standard recommendations are at
>
> http://kmself.home.netcom.com/Linux/FAQs/partition.html
>
> In your case, you may want to look at deviating from the standard
> configs shown with an expanded /var, or at reparenting your webserver,
> database, and CVS repositories under /home. I'd assume all of the RAID
> partition is presented as /home. You could probably run with a greatly
> expanded /var to fill drive 1 as well. Even going generous with /usr
> and /usr/local (say 3-4 GB each), you're going to have something like
> 10-12 GB to play with on your drive 1.
>
> Cheers.
>
> --
> Karsten M. Self <kmself@ix.netcom.com> http://kmself.home.netcom.com/
> What part of "Gestalt" don't you understand? There is no K5 cabal
> http://gestalt-system.sourceforge.net/ http://www.kuro5hin.org
>
