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09-04-2006 04:32 AM
09-04-2006 04:32 AM
Re: RAID1 on SATA
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09-04-2006 05:09 AM
09-04-2006 05:09 AM
Re: RAID1 on SATA
In the installer, do you see anything like:
/dev/sda
or like
/dev/hda
or anything that begins with:
/dev
Anything at all similar to the above?
Can you please send all information you gather about devices on your system.
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09-04-2006 05:23 AM
09-04-2006 05:23 AM
Re: RAID1 on SATA
Well, i see sda
Thanks to help-me!
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09-04-2006 08:21 AM
09-04-2006 08:21 AM
Re: RAID1 on SATA
Thanks
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09-04-2006 04:14 PM
09-04-2006 04:14 PM
Re: RAID1 on SATA
- Normally, RH/FC will see each of the phisical disks as a separate entity.
- As Tom Robinson has said, after you activate RAID1 from BIOS, the OS should see a single logical disk. In order for this to happen, you need ADDITIONAL SOFTWARE DRIVERS. If you are lucky, you might be able to adapt those from HP that you can download from http://h18000.www1.hp.com/support/files/server/us/locate/1116_6154.html#7. Unfortunately, at a quick glance there seem to exist binary only drivers, only suitable for very old kernels and which most probably will not be useful in FC.
However, IF the so called hardware RAID would have really been hardware, the additional software drivers would not have been needed. Therefore I strongly suggest to give up using the "BIOS" RAID and use a software linux-created RAID1 instead. It is EXTREMELY simple: just DO NOT activate the RAID in BIOS (leave the SATA ports as regular rather then RAID) then go ahead and create the RAID in anaconda (in disk druid actually) when given the opportunity. YOU WILL NOT GAIN ANYTHING using the pseudo-hardware RAID because in fact IT IS STILL DONE IN SOFTWARE, via the drivers available at the above mentioned URL.
As a sidenote: REAL HARDWARE RAID is EXPENSIVE. It ALWAYS includes a separate controller, either on the motherboard or on a separate card. ALL motherboards which pretend to do RAID but require specific software drivers are actually implementing fake-raid. Here are inlcuded both taiwanese made motherboards (all consumer sub-200$ boards) as well as higher priced (Intel, Dell, HP) ones.
And as a last observation: I have implemented linux software RAID several times without a glitch. As long as http://www.tldp.org/HOWTO/Software-RAID-HOWTO.html is respected, you will not have any problems. It works just as well (or better, since you have additional options and flexibility) as any fake raid.
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09-04-2006 07:24 PM
09-04-2006 07:24 PM
Re: RAID1 on SATA
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09-04-2006 11:15 PM
09-04-2006 11:15 PM
Re: RAID1 on SATA
Take a pen and paper.
Start to install your system.
When you get to partitioning, write down EVERYTHING you see in there.
Type your notes onto the forum.
sda is not enough, I'm sorry. More information please.
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09-05-2006 01:00 AM
09-05-2006 01:00 AM
Re: RAID1 on SATA
This machine is a HP Proliant ML110 G3
I list to you all steps OK?
In setup:
- Configure to use SATA as [RAID]
In Embedded SATA RAID controller:
- Create ARRAY
ARRAY type: RAID 1 (MIRROR)
ARRAY label: cont
Create RAID via: Quick init
In Fedora core 5 (DVD Install)
- Fedora ask me to initialize my 2 disks
- In next windows Fedora show me the disks for use in the instalation.
SDA 76317 ATA MAXTOR 6L080M0
SDB 76317 ATA MAXTOR 6L080M0
But, this disks are the disks of my RAID!!!
what it is happening?
Thank!
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09-05-2006 01:18 AM
09-05-2006 01:18 AM
Re: RAID1 on SATA
Keep up this kind of post. The information you are now sending is useful.
>In setup:
>- Configure to use SATA as [RAID]
>In Embedded SATA RAID controller:
>- Create ARRAY
>ARRAY type: RAID 1 (MIRROR)
>ARRAY label: cont
>Create RAID via: Quick init
It looks like your array configures correctly in BIOS.
>In Fedora core 5 (DVD Install)
>- Fedora ask me to initialize my 2 disks
>- In next windows Fedora show me the disks >for use in the instalation.
>SDA 76317 ATA MAXTOR 6L080M0
>SDB 76317 ATA MAXTOR 6L080M0
>But, this disks are the disks of my RAID!!!
It appears that you don't have a driver for the hardware raid on your system. You will need to download the driver from the HP website and initiate the install with:
boot: linux dd
at the correct moment the installer will ask you for the driver disk. (Usually a floppy drive is require although sometimes this can be achieved by using a CD). Make sure you get the right driver for you version and architecture. (i.e. are you using X86_64 or x86). HP don't support Fedora so maybe you should try Red Hat, CentOS (which is a clone of Red Hat) or SuSE.
The other alternative is, as suggested above, to use software raid on your SATA drives. To do this, ignore completely the BIOS raid (in fact turn it off), and use the installer to configure you two disks with 'no mountpoint' and a filesystem type of 'Software RAID'. Next include both of the disks into a raid array and set the RAID level to '1' (i.e. a mirrored set). Once that is done, you can begin to partition the RAID array. You should have one boot partition. The rest of the disk can be either regular partitions or managed via LVM.
t.
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09-05-2006 01:52 AM
09-05-2006 01:52 AM
Re: RAID1 on SATA
After I try with CentOS I post here!
Thanks for all!