On Mon, May 05, 2014 at 10:17:38PM +0100, Hugo Mills wrote:
> Given these four (spread, dup, linear, grouped), I think it's
> fairly obvious that spread is a special case of grouped, where each
> device is its own group. Then dup is the opposite of grouped (i.e. you
> must have one or the other but not both). Finally, linear is a
> modifier that changes the sort order.
>
> All of these options run completely independently of the actual
> replication level selected, so we could have 3c:spread,linear
> (allocates on the first three devices only, until one fills up and
> then it moves to the fourth device), or 2c2s:grouped, with a device
> mapping {sda:1, sdb:1, sdc:1, sdd:2, sde:2, sdf:2} which puts
> different copies on different device controllers.
I generally like the idea and proposal :)
Marc
--
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
.... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/ | PGP 1024R/763BE901
--
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
