RE: the 12 disk limit

[Tom Livingston]

Lawrence Dickson wrote:
>    I guess this has been asked before, but - when will the RAID
> code get past the 12 disk limit? We'd even be willing to use
> a variant - our customer wants 18 disk RAID-5 real bad.

A solution you may already be aware of is to use two 9 disk RAID5 sets, and
then use the two md devices to set up a third that contains the first two as
a stripe set.

The obvious drawbacks: lose one more disk to parity, and more layers of raid
code.  But it works today...

Tom