[DRBD-user] Relocating secondary volume

Lionel Sausin ls at numerigraphe.com
Fri Jul 26 12:55:10 CEST 2013

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

Le 25/07/2013 23:27, Charles Lyons - ConnetU a écrit :
> (...)
> If we snapshot a copy of the secondary over to the new node before 
> your step (5), will the sync process just copy the data between the 
> time the snapshot was taken and step (5) or would it still require a 
> full re-sync (hence having gained nothing)?
Whether or not you "snapshot a copy of the secondary over to the new 
node", a safe thing to do is to force-create new meta-data on the new 
node, and let DRBD do a full sync.
Then you can still take advantage of a snapshot copy by setting 
csums-alg : a full read will be done on both nodes but only the 
different blocks will be written to the new node.
Lionel Sausin.

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