On 19/11/13 23:16, Duncan wrote:

> So we have:
> 
> 1) raid1 is exactly two copies of data, paired devices.
> 
> 2) raid0 is a stripe exactly two devices wide (reinforced by to read a 
> stripe takes only two devices), so again paired devices.

Which is fine for some occasions and a very good start point.

However, I'm sure there is a strong wish to be able to specify n-copies
of data/metadata spread across m devices. Or even to specify 'hot spares'.

This would be a great to overcome the problem of a set of drives
becoming "read-only" when one btrfs drive fails or is removed.

(Or should we always mount with the "degraded" option?)


Regards,
Martin

--
To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to