topic Re: Mirror 1 hardware, seen as two drives instead of one :( - Fedora 10 64bits in Operating System - Linux

Mirror 1 hardware, seen as two drives instead of one :( - Fedora 10 64bits

johntheripper — Mon, 23 Feb 2009 18:47:18 GMT

HI, i've got a HP Proliant ML110 G5, and after
I made the RAID1 mirror with the controller
utility, Fedora sees my RAID as two different
devices [sda and sdb] instead of one entity
[sda]. I do use Fedora 10 x86/64.
What should I do? Will I be able to use the
RAID 1 facility offered by the hardware
controller?
Please help,what should I do?

Thank you.

Re: Mirror 1 hardware, seen as two drives instead of one :( - Fedora 10 64bits

Steven E. Protter — Mon, 23 Feb 2009 19:51:23 GMT

Shalom,

please post fdisk -l output.

This is not the way the hardware raid is supposed to present. If you have two disks and use hardware raid configuration to create 1 raid 1 disk then the presentation to the OS should be 1 disk.

I also suggest booting into the array utility and checking the status and configuration of the disks.

SEP

Re: Mirror 1 hardware, seen as two drives instead of one :( - Fedora 10 64bits

johntheripper — Mon, 23 Feb 2009 19:59:47 GMT

Greetings Steven,

Thanks for your reply.

fdisk -l shows a sda and a sdb object, like two separate disks.

The raid status is ok, i've checked in the utility.

I don't know what's happening.

Re: Mirror 1 hardware, seen as two drives instead of one :( - Fedora 10 64bits

Steven E. Protter — Mon, 23 Feb 2009 21:54:27 GMT

Shalom again.

I need to see the output from fdisk. There is normally size information.

I have that installed on this laptop and might be able to provide further assistance.

Patch the system and see if the situation continues.

SEP

Re: Mirror 1 hardware, seen as two drives instead of one :( - Fedora 10 64bits

johntheripper — Mon, 23 Feb 2009 22:31:11 GMT

Sorry, i am not able to provide the fdisk, cos i'm not near the computer, but I will be tomorow!

What do you mean by "patch the system" ?

Re: Mirror 1 hardware, seen as two drives instead of one :( - Fedora 10 64bits

Jimmy Vance — Tue, 24 Feb 2009 03:54:59 GMT

The embeded SATA controller in the ML110 G5 is a "software" RAID controller. A driver is required for the RAID function to work. The driver is not open source and only made available from HP for specific RHEL and SLES kernels.

Re: Mirror 1 hardware, seen as two drives instead of one :( - Fedora 10 64bits

johntheripper — Tue, 24 Feb 2009 17:07:39 GMT

Jimmy Vance, you saved the day, thank you.

Yes, you are right, that's a software controller. It's the first time I ever saw in my life this type of controller.

I solved the problem by installing a software raid with Fedora 10, as this server doesn't have a real hardware controller.

Thank you again.