Hi all:

I setup RAID-1 volume in CentOS 5.0 x86_64. Unfortunately we met
a sudden power failure and one of RAID-1 seagate sata disk was
damaged. So I replaced it with new one, which was also seagate brand
and same volume size. I used INTEL 82801HR/HH/HO SATA RAID Controller.
After replace, I selected the new hard drive for rebuilding. BIOS said
"Rebuild in Operation System". I seemsIntel doesn't provide rebuild
software for CentOS Linux. Intel only support Windows 2000/XP/Vista/
2003. They provides : http://downloadcenter.intel.com/Prod...=2101&lang=zho

My question is How can I rebuild RAID-1 data on Linux? I just want
to keep my data on undamaged RAID-1 disk. Can I mount that undamaged
RAID-1 disk , then save my data?

Any suggestion? Thanks in advance.


Regards,
Chen Xueqin

robbie chen wrote:
> Hi all:
>
> I setup RAID-1 volume in CentOS 5.0 x86_64. Unfortunately we met
> a sudden power failure and one of RAID-1 seagate sata disk was
> damaged. So I replaced it with new one, which was also seagate brand
> and same volume size. I used INTEL 82801HR/HH/HO SATA RAID Controller.
> After replace, I selected the new hard drive for rebuilding. BIOS said
> "Rebuild in Operation System".

Are you sure you have used the hardware raid? For if you setup it in CentOS,
then you most likely use software raid. In that case this page may be useful
for you:
http://www.sitearticles.com/index.ph...rintable&id=43


> My question is How can I rebuild RAID-1 data on Linux? I just want
> to keep my data on undamaged RAID-1 disk. Can I mount that undamaged
> RAID-1 disk , then save my data?

To copy the data, you can use dd, this could make the raid card to get
confused if you are using hardware raid.


--

//Aho

Hi Aho :
Thanks for advice.

On Jan 1, 10:59 pm, "J.O. Aho" <u...@example.net> wrote:
> robbie chen wrote:
> > Hi all:
>
>
> Are you sure you have used the hardware raid? For if you setup it in CentOS,
> then you most likely use software raid. In that case this page may be useful
> for you:http://www.sitearticles.com/index.ph...rintable&id=43
>
I am sure I use *HARDWARE* raid-1. So the rebuild method for soft-
raid won't
help me:(. Any the raid use INTEL 82801HR/HH/HO SATA RAID Controller.

> > My question is How can I rebuild RAID-1 data on Linux? I just want
> > to keep my data on undamaged RAID-1 disk. Can I mount that undamaged
> > RAID-1 disk , then save my data?
>
> To copy the data, you can use dd, this could make the raid card to get
> confused if you are using hardware raid.
>
Yes, I could copy the data by dd. But I can't read the file in
bytes of raid disk.So
it's a problem.