Metadevices in metadevices

From: Gavin Kelman (gavin@metahusky.net)
Date: Thu Oct 23 2003 - 09:32:11 EDT


We've got an A1000 and a D1000. I've setup the A1000 to do hardware RAID
5 across all 12 disks. I've done software RAID across all 12 disks in the
D1000, creating a metadevice, D50.

I want to now concatenate the 2, to have a huge filesystem, with the Hardware
RAID used first. I made a D40 out of the c3t8d0s0 which is the huge A1000's
hardware RAID disk, so it's now a metadevice so I can add it to mirrors and
concats. When I try and make a D60 that contains D40 and D50, I get:

bash-2.05# metainit d60 2 1 d40 1 d50
metainit: batoni: d40: is a metadevice

Which is, quite obviously, correct. Normally with mirrors you have
metadevices, which you add into the main mirror, can you not do this with
concats? If not, how do I make the D1000 and A1000 into one big filesystem?

Cheers,
Gavin.

-- 
Gavin Kelman
gavin@metahusky.net
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