[DRBD-user] RE: How to do partial re-sync?

Lars Ellenberg Lars.Ellenberg at linbit.com
Tue Aug 16 18:57:04 CEST 2005

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

/ 2005-08-15 20:13:25 +0800
\ Vic Berdin:
> Hi Paul,
> My test with drbd is very basic: I simply populate my Primary with new files
> just right after a full-sync.

> I repeated the full sync process by:

 why? this makes absolut no sense to me...

> a. doing a `drbdsetup /dev/drbd/0 invalidate`) on the secondary node
> b. then populated the (already mounted) primary source device with
> additional data (note that I did not do anything with the Secondary Node
> yet)
> c. then did a `sync` on the Primary

btw, sync is, despite of the name, not a synchronouse operation.
so the command "sync" may exit successfully, even though the actual disk
sync is not done yet...

> While doing the above, I was hoping that there will (should) be some
> activity on Secondary's HDD LED, as (I hoped) new data gets
> auto-replicated/copied. But there was none.

so drbd was quicker than you thought it would be.

you happen to know about http://www.drbd.org/drbd-howto.html,
also available (in a possibly more recent version) at

: Lars Ellenberg                                  Tel +43-1-8178292-0  :
: LINBIT Information Technologies GmbH            Fax +43-1-8178292-82 :
: Schoenbrunner Str. 244, A-1120 Vienna/Europe   http://www.linbit.com :
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