1 Topic by da_norf (edited by da_norf 2011-07-21 15:12:03)

  • da_norf
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Topic: problem with fake RAID 5

Hello,

I actually have 4 Seagate HDDs attached to an ICH10R southbridge chipset.
3 are used for a RAID 5 volume the last on is for spare.

I tried to use GParted live CD 0.8.1-3 on this config.

GParted show me the 4 drives individually and not the RAID volume.

"sudo dmraid -s" and "sudo dmraid -r" show me correct informations about my raid volume.

"sudo dmraid -ay" tells me : "RAID45 not in Kernel"

after a few reads on Internet, I found that a kernel module named "dm-raid45" (or "dm-raid4-5") must be loaded for raid 5 support through dmraid. With no hope I tried : "sudo modprobe -a dm-raid45" (and "sudo modprobe -a dm-raid4-5") but I was said that this module is unkown.

Here are my questions :

Have I missed something ? Is there already an embedded solution in the live CD to make fake RAID 5 readable in GParted ?
If no, can you please think of including the missing kernel module ? (perhaps with a big please with sugar on it ?)

PS : I hope my english is readable (this is some kind of "fake RAID" english big_smile)

2 Reply by gedakc

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Re: problem with fake RAID 5

The GParted Live image is based upon Debian Live.  If the Debian Live packages do not yet support your RAID, then that is most likely the reason that GParted Live does not support your RAID.

Where did you learn about the "dm-raid45" module?
Is it available for Debian Live?

3 Reply by da_norf

  • da_norf
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Re: problem with fake RAID 5

First, excuse me for the very late answer...

To answer your question, I think the following links are the most relevant to understand the situation :
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=411172
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=496893
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=504165

If I’m correct there is nothing to expect until a stable release of the raid driver...

4 Reply by gedakc

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Re: problem with fake RAID 5

Thank you for the links.  Let's hope that a stable release is due in the near future.

5 Reply by Alliance (edited by Alliance 2011-11-20 15:54:30)

  • Alliance
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Re: problem with fake RAID 5

da_norf wrote:

If I’m correct there is nothing to expect until a stable release of the raid driver...

Another question is when and if it is released...
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