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Andrew Zhukov 05-19-2012 07:41 PM

working with dm-raid module
 
Hello!

I am engineer in Tver State University. We would like to use dm-raid driver in our storage system. But we must understand how we can rebuild the array (e.g raid1) and how mark a disk as failed. I have not found any documentation about it. Could you tell how to do it?

Thank you for advice!

---
WBR, Andrew Zhukov
TvSU IC Dep


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Brassow Jonathan 05-22-2012 06:59 PM

working with dm-raid module
 
On May 19, 2012, at 2:41 PM, Andrew Zhukov wrote:

> Hello!
>
> I am engineer in Tver State University. We would like to use dm-raid driver in our storage system. But we must understand how we can rebuild the array (e.g raid1) and how mark a disk as failed. I have not found any documentation about it. Could you tell how to do it?

The mapping table contains all of the possible options you should need. The options are listed in linux/Documentation/device-mapper/dm-raid.txt.

I have thought that it might also be useful to notify the kernel of a drive failure (or a drive returning to life) without having to load a new mapping table. This could be done through the DM message interface. If you find that this is a necessary thing, we could talk about that too.

brassow



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