[DRBD-user] First time DRBD user question

Brian R. Hellman brian at linbit.com
Thu Mar 11 19:25:00 CET 2010

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

Cameron Smith wrote:
> I am preparing for my first deployment of DRBD and have a few questions.
> My initial setup is two servers. One is a functioning server and will
> be the primary and the second is currently not used and will be my
> secondary.
> The DRBD instructions say:
> "After you have installed DRBD, you must set aside a roughly
> identically sized storage area on both cluster nodes. This will become
> the lower-level device for your DRBD resource."
> What is this storage area for?
This is where the data you want replicated will go.  So if you have
/dev/sdb as the block device you want to replicate, you will need a
block device of the same size on your secondary to replicate to.
> How big does it need to be?
However big you want it :)
> Is this just where DRBD keeps it's own data to function or is this
> where the actual replicated source data needs to be and where the
> destination will go?
> Thanks!
> Cameron
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