Re: RAID 1 with a fakeRaid hardware

Joaquin López wrote:

Hi all,

I've recently installed a ubuntu dapper Linux in my box with RAID

support following the steps in

https://help.ubuntu.com/community/FakeRaidHowto .

In the BIOS I've configured the RAID as RAID-1(Mirror). The disks are

SATA of 160GB of capacity.

The motherboard has an Intel Application RAID software.

The thing is that I would like to have fault tolerant support, but as

I can see in the net forums there is not that kind of support (i.e.: a

disk crashes). In my case, when I unplug the power cable in one of the

disks of the raid, the system freezes.

Do you know if there exists patches for the kernel which enables an

error handling in failure case?

If not, what sense has to have RAID-1 (fakeRAID) support in that kind

of motherboards?

Currently I have the 2.6.15-27-686 kernel version, and the

1.0.0.rc13 for the dmraid package.

Thank you,

Joaquin.

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Hi,

to have that kind of features in a fakeRAID you have to use binary
drivers developed by the chip manufacturer or by some third party. A
good start is to find a HP Proliant server that uses the same SATA RAID
chip because HP has binary drivers for a lot of Intel chipsets and
Linux dists (mainly RHEL and SuSE).

Alex

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