[DRBD-user] Growing raid10+drbd+lvm

Felix Frank ff at mpexnet.de
Thu Jul 21 09:21:02 CEST 2011

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.

On 07/21/2011 01:19 AM, Pete Ashdown wrote:
> I have one host that has a StandAlone 1.5TB lvm running on top of drbd
> (pv is /dev/drbd0) and a software raid10.  I connected a second peer to
> this with a 2TB software raid10.  The drbd started to sync as expected,
> but of course retained the 1.5TB sizing.  If I disconnect the drbd peers
> from each other, is it possible to safely grow the drbd & lvm to the
> full 2TB?

Well, http://www.drbd.org/users-guide/s-resizing.html#s-growing-offline

But why do it offline? You probably want to replace the original 1.5TB
node with another 2TB one, no? So why wouldn't you
1. fail over
2. disconnect
3. replace
4. connect + sync up
5. resize online?


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