I hope this is the right place to post this. If not let me know. I have a HP server running Redhat 9. Specs are 1Ghz PIII with 2.5GB ECC Reg. SDRAM and six HP scsi drives totaling 144GB. I am using the onboard scsi connector. I see that Redhat has been installed on the first 36Gb drive and sees all the others as storage. What do I need to run it in a raid 0 config and how do I do it?

This depends on what kind of implementation you want:
-hardware
-sofware

Linux the software version is not very hard. You make 2 partiions, normally
they are on a different drive and have the same size

for example a config for raid 1 other are similar to this, maybe you like a raid5
or even a raid 0 (speed)


in /etc/raidtab
# Sample raid-1 configuration
raiddev /dev/md0
raid-level 1
nr-raid-disks 2
nr-spare-disks 0
persistent-superblock 1
chunk-size 4
device /dev/sdb1
raid-disk 0
device /dev/sdc1
raid-disk 1



mkraid /dev/md0 make the raiddevice

start with raidstart and stop with raidstop

after starting you can use the device /dev/md0

Perhaps I should have explained that this is my first experience with Linux and my first experience working with a server. I have already installed Redhat 9. Do I need to reinstall and add some raid 0 driver or can I do that now that it is installed. Also I have 6 scsi drives in now. Two are 36GB and four are 18GB. Thanks in advance

You can make a raid 0 out of the other 4 or 5 disks without having to reinstall. If you want to use all 6 disks, then you most likely have to back everything up and start over again, since the Raid 0 has to initialize and stripe all the data accross the disks. In order for all the drives to be used, the partitions all have to be of type Linux Raid, which you define at install time or using fdisk if you decide to set up raid after installation is complete. Also, once the raid device is created you have to put a filesystem on it (ext2 or ext3) which involves formatting the disk.

I suggest reinstalling if you want to use all the disks in a Raid 0 setup.

If it is an HP Netserver with the embedded RAID controler look for something on bootup that says "Advanced users can hit Ctrl+M to edit RAID settings"

This is where you can define the RAID arrays for the hardware controler.

Thanks redwing25 I do see that message at boot up but because I am not an advanced user I did not want to do something I could not undo. Any advise as to what I should do once I am there or is it self explanitory? Oh yes it is a HP Netserver. Thanks again!

Thanks hkb33 for all your info. I will try to put it to good use

It is very self explanistory....but I do not remember the details as it has been a couple years since I have had to change the array in my machine.

Read up here to figure out what level suits your needs:

http://www.acnc.com/raid.html

Then go ahead and set it up.