Hi,
I have just purchased a couple of SATA WD 120 gig Raid Edition Drives and set them up as RAID-0 And put windows on a 50 gig partition, I went to get gentoo installed but i'm a bit confused to how it works with RAID, after looking through the various howtos I am supposed to create my partitions like so
/dev/sda1 /windows
/dev/sda2 /boot
/dev/sda3 /swap etc
/dev/sdb1 /windows
/dev/sdb2 /boot
/dev/sdb3 /swap etc
then create an /etc/raidtab file with the right information.
My problem is that when I fdisk /dev/sda1 it looks ok it has the information for the windows partition but when I fdisk /dev/sdb it shows no partitions is this correct how do I setout my raidtab file?
Thanks
Cheops
RAID Questions
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- NeddySeagoon
- Administrator
- Posts: 56082
- Joined: Sat Jul 05, 2003 9:37 am
- Location: 56N 3W
cheops05,
You have set up your drives as BIOS RAID, or windows wouldn't work as RAID.
Support for BIOS raid in Linux is poor and patchy. Linux offers kernel RAID, which is not compatible with BIOS RAID. Thats why you cannot fdisk your /dev/sdb.
Post the output from lspci to show your SATA chipset and maybe a reader can point you towards BIOS RAID support for it.
You have set up your drives as BIOS RAID, or windows wouldn't work as RAID.
Support for BIOS raid in Linux is poor and patchy. Linux offers kernel RAID, which is not compatible with BIOS RAID. Thats why you cannot fdisk your /dev/sdb.
Post the output from lspci to show your SATA chipset and maybe a reader can point you towards BIOS RAID support for it.
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.
- NeddySeagoon
- Administrator
- Posts: 56082
- Joined: Sat Jul 05, 2003 9:37 am
- Location: 56N 3W
cheops05,
Your raid card is somewhat unkindly called 'fake raid'. Under Windows, it appears to provide raid functionality by doing all the hard work in software, which is provided in a ROM on the card.
Linux offers three sorts of raid. Hardware Raid (real raid) where the individual drives are not visible to the kernel, kernel raid, where the kernel does all the management, in a way similar to BIOS (fake) raid. Lastly, linux also offers BIOS raid in the same way as Windows. You must use this latter facility if you want Windows and Linux to be able to share your raid array.
From a set up point of view, with BIOS raid, you put the drives into the raid array, then partition it. The drives use the same raid level for every partition. With kernel RAID, you partition the drives, then add the partitions to the RAID. You can use different raid levels on different partitions.
If you are sure that your card uses the Silicon Image 3112 SATA chip, try the medley driver. I don't know if its on any of the live CDs though.
Your raid card is somewhat unkindly called 'fake raid'. Under Windows, it appears to provide raid functionality by doing all the hard work in software, which is provided in a ROM on the card.
Linux offers three sorts of raid. Hardware Raid (real raid) where the individual drives are not visible to the kernel, kernel raid, where the kernel does all the management, in a way similar to BIOS (fake) raid. Lastly, linux also offers BIOS raid in the same way as Windows. You must use this latter facility if you want Windows and Linux to be able to share your raid array.
From a set up point of view, with BIOS raid, you put the drives into the raid array, then partition it. The drives use the same raid level for every partition. With kernel RAID, you partition the drives, then add the partitions to the RAID. You can use different raid levels on different partitions.
If you are sure that your card uses the Silicon Image 3112 SATA chip, try the medley driver. I don't know if its on any of the live CDs though.
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.
Promise fasttrack 378 (TX4000 chipset) compatability?
Hey Neddy do you know anything about my RAID chip? I know its BIOS raid for windows and i would like to dual-boot this system, however i cant seem to find a driver from promise that is compatible with 2.6 kernel. Is there some other back door without going to kernel-raid and hooping windows?
Alternativly would it be possible to set up RAID in linux kernel (software), and leave partition for windows that could be installed afterwards or do you think id be pushing my luck with windoze installer?
Alternativly would it be possible to set up RAID in linux kernel (software), and leave partition for windows that could be installed afterwards or do you think id be pushing my luck with windoze installer?
- NeddySeagoon
- Administrator
- Posts: 56082
- Joined: Sat Jul 05, 2003 9:37 am
- Location: 56N 3W
jbmigel,
You cannot mix kernel raid and windows on the same drives. Windows cannot read kernel raid.
You don't say what chipset your card uses but check out this page http://tienstra4.flatnet.tudelft.nl/~gerte/gen2dmraid/
which has a link to a special gentoo liveCD.
Thats the link I was looking for for cheops05 too.
You cannot mix kernel raid and windows on the same drives. Windows cannot read kernel raid.
You don't say what chipset your card uses but check out this page http://tienstra4.flatnet.tudelft.nl/~gerte/gen2dmraid/
which has a link to a special gentoo liveCD.
Thats the link I was looking for for cheops05 too.
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.