[SOLVED] OpenSuSE 11 on REAL raid / Dual Boot with Windows XP
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OpenSuSE 11 on REAL raid / Dual Boot with Windows XP
Hi guys!
I have a Dell XPSM1730 laptop with two 200GB HDD that can be hardware RAID 0 (stripping) or non RAID (normal separate disks) and maybe even RAID 1 (Mirroring) but I'm not sure about the last one... My question is pretty simple, but I suspect the solution might be complicated...
I would like to install openSUSE 11 and Windows XP Pro as a dual boot config, but using my disks as real RAID (not the fake raid or any software raid). Windows XP will install very smoothly on a physical RAID, but openSUSE does not seems to detect the hardware RAID, and during the setup, it list my two disks as /sda (186.2GB) and /sdb (186GB) but does not see ONE 372.4GB HDD... I'm confused on how to proceed... also for XP, how can I install it along openSuse 11? As you can see, I'm pretty much a complete newbie with Linux! (but looking to get rid of that CRAPPY windows forever.... Grrr)
Hi guys!
I have a Dell XPSM1730 laptop with two 200GB HDD that can be hardware RAID 0 (stripping) or non RAID (normal separate disks) and maybe even RAID 1 (Mirroring) but I'm not sure about the last one... My question is pretty simple, but I suspect the solution might be complicated...
I would like to install openSUSE 11 and Windows XP Pro as a dual boot config, but using my disks as real RAID (not the fake raid or any software raid). Windows XP will install very smoothly on a physical RAID, but openSUSE does not seems to detect the hardware RAID, and during the setup, it list my two disks as /sda (186.2GB) and /sdb (186GB) but does not see ONE 372.4GB HDD... I'm confused on how to proceed... also for XP, how can I install it along openSuse 11? As you can see, I'm pretty much a complete newbie with Linux! (but looking to get rid of that CRAPPY windows forever.... Grrr)
Thanks and your help is really appreciated!
I am %99.999999...etc positive that you do not have real hardware raid (especially in a laptop). Most hardware that has 'built-in' RAID is fakeRAID(supported in hardware but all processing is done on system CPU).
I don't know what fakeRAID chip you have in your laptop, but sometimes the RAID drives will show up in /dev/mapper/... but if they aren't showing up in you're partition list, then you may be out of luck.
I did some trials yesterday, and here's what I've found...
In my BIOS, I have 3 choices for the HDD controller. Here's what I have + what the BIOS says (as help tip):
RAID Autodetect / ATA : RAID if signed drives otherwise ATA
RAID Autodetect / AHCI : RAID if signed drives otherwise AHCI
RAID On : RAID if on every boot
If I select either RAID /ATA or RAID /AHCI, and I dont have any RAID
array configured in the RAID controller setup screen,I will have 2 identical ATA or ACHI (SATA) drives... However, if I select the RAID on option in the BIOS, the RAID mode will be enabled, and I can setup an array in the RAID controller setup screen.
CRC123, I am now 100% sure you're right about the RAID chipset... it is a fake raid (Intel Mobile 82801 SATA RAID) that comes with the 965 chipset series from Intel. However, I couldnt install openSUSE 11 on my laptop. No matters which configuration (RAID or not, ATA or AHCI...) I select, the setup would drop during the HDD detection (at 60%) and send me in linuxrc telling me "An error occured during install"... What??? no error code, nothing else.... The wierd thing, is that Monday (2 days ago), I succeded to install openSUSE.... When I did, I created a RAID as "md0" and everything went fine... However, if I remember correctly, my controller was still "RAID on" but the opensuse setup was detecting 2 different drives instead of seeing 1 big drive like windows see... Any clues?? I have to admit, I'm a little confused....
thanks!!
Thanks guys! That was very helpful, but after reading several websites that discussed about benefits vs hassle of configuring/using a fakeRAID in linux, I just decided to install everything over a non-raid setup.
Thanks guys! That was very helpful, but after reading several websites that discussed about benefits vs hassle of configuring/using a fakeRAID in linux, I just decided to install everything over a non-raid setup.
Thanks again!
You can also try using the built-in software raid that comes with openSUSE 11 (I think it's called dmraid, and you can configure it through the disk partitioner). I would only recommend it for RAID 0 or RAID 1. There really isn't much performance hit in these modes and you don't have to Stripe or Mirror whole disks; software raid allows you to stripe/mirror by partitions.
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