[DRBD-user] Sync two different versions of DRBD

yves user at kochira.com
Thu Mar 12 15:45:10 CET 2015

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


two servers A (primary) and B (secondary), are each using DRBD 8.0.16 via
protocol C.

Since only one can be migrated to 8.4 at a time, is it possible to

- keep unchanged A (8.0.16)
- install 8.4 on B (similar config with protocol C)
- invalidate B data (created from 8.0.16)
- sync A -> B

and keep this for a few days.

Does it safely work?

Thank you and regards,

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