[sheepdog] [PATCH] erasure: allow x nodes to serve write request with x:y policy

[Liu Yuan]

On Mon, Dec 09, 2013 at 12:54:52PM +0800, Robin Dong wrote:
> When end users set erasure code 4:2 policy, we can give them the promise:
> after you have written the data, you can still read it out if two machines
> in cluster get broken.
> But after this patch, we can't keep this promise.

why not? We still get this promise. You can write the data and read it out even
when you have 4 nodes alive and 2 nodes dead with 4:2 policy.

Thanks
Yuan