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Old 08-10-05, 06:12 AM   #1
Flame81
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Default Installing Linux on nF4 with Active Raid

Hi everybody, I'm an nVidia users since the nForce2, and now I've got an nForce 4 SLI based motherboard, but I've got a problem on installing linux, I'll explain.

I've got 2 SATA2 Hard disk, configured on a Raid0 on the nVidia chipset, using the nvRaid and F10 key for the configuration of the array.

I've installed Windows Xp x64 profesisonal without any problems, using the F6 key during installation for giving it my nVidia RAID driver disk.

After that, since I've always use a double boot with win and linux, I've tried to install linux, but there's no way to find a linux that recognize the active raid, so I can't install it

I've tried with Kubuntu, Fedora Core 4, Ubuntu, and Gentoo, alway the latest version for AMD64, and there's no way to install it (I think only the gentoo could recognize the Raid, because need to be compiled, but I'm not so expert of linux, so I can't compile something with the nVidia linux driver).

Somebody know if there's a distro that supports nVidia Raid ?

Thanks for all,
Regards,
Andrea
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Old 08-11-05, 08:51 AM   #2
jlehtone
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Default Re: Installing Linux on nF4 with Active Raid

Question: Is that NF4 RAID0 really so much faster that it is worth the trouble?

Personally, I have two 200GB Seagates, no RAID, both partitioned identically,
(top of the head, may be wrong):
sd[ab]1 md1 RAID1 /boot
sd[ab]2 md2 RAID1 swap
sd[ab]3 WinXP C: and D:, respectively
sd[ab]4 extended partition
sd[ab]5 md5 RAID1 / of Fedora Core 3
sd[ab]6 md6 RAID1 / for next Linux version
sd[ab]7 md7 RAID1 /data like homes etc
sd[ab]8 md8 RAID1 /backup

No need for the RAID driver. I could have RAID0 on some partitions if I would need more striped space than peace of mind for keeping my data and setup safe in the case of disk failure. You may note that partition 3s are not considered as valuable data So it is the 'mdadm' within Linux where I did set up my RAIDs. Best of all you can read from that ext3 that is on mirrored partition without raid support in kernel.
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Old 08-11-05, 10:23 AM   #3
arokh
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Default Re: Installing Linux on nF4 with Active Raid

dmraid will get the RAID array visible to the kernel. There's currently no installers that support it, as far as I know. You'll need a third disk to boot from, activate the RAID, transfer all your filesystems over to it, then install the bootloader.
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Old 08-24-05, 03:34 AM   #4
Flame81
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Default Re: Installing Linux on nF4 with Active Raid

1. Yes, it run faster
2. I can't make anything with a disk driver on linux, it's not like windows where I've got only to give him the driver using the F6 key.
I think that at now the only way to install a linux distro on a Raid system is to recompile the package including the nVidia driver...but it's not so easy
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Old 08-24-05, 08:38 AM   #5
JaXXoN
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Default Re: Installing Linux on nF4 with Active Raid

Quote:
Originally Posted by Flame81
1. Yes, it run faster
True, hdparm and bonnie will certainly show higher values, especially
for sequential/block accesses. Uncompressing and copying
files is notably faster, but there is little improovement for average
desktop applications. From experience, RAID0 with a two disk raid set
is not worth the effort unless you realy need the additional file streaming
performance (video editing, data aquisition, etc.). However setting up
softraid0 for the first time is an interessting lesson.

Quote:
Originally Posted by Flame81
I think that at now the only way to install a linux distro on a Raid system is to recompile the package including the nVidia driver
The nforce package only includes sound and network drivers!

You can very well install a software RAID0 setup with most Linux
installers, not using NV-RAID at all. Please note that NV-RAID is
not a hardware RAID solution. A decent hardware RAID controller
is typically > $300 (i.e. the Areca ARC-1210 i'm having was ~$650, but
is worth each single cent).

Anyway, if you insist using NV-RAID with Linux, you may follow the
discussions in these threads:

http://www.nvnews.net/vbulletin/showthread.php?t=54149
http://www.nvnews.net/vbulletin/showthread.php?t=55414

regards

Bernhard
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