[DRBD-user] drbd 0.7 -> drbd8 upgrade path?

[Lars Marowsky-Bree]

Hi,

I'd like to inquire the suggested upgrade path to drbd8 for existing
drbd0.7 clusters.

Can this be done as a rolling upgrade? Or do all nodes to be updated at
once?

Is the on-disk format compatible? If the upgrade doesn't work out as
expected, can the user roll-back the node, or will the drbd8 code update
the metadata in a way which prevents this?

Any experience yet? ;-)


Regards,
    Lars

-- 
Teamlead Kernel, SuSE Labs, Research and Development
SUSE LINUX Products GmbH, GF: Markus Rex, HRB 16746 (AG Nürnberg)
"Experience is the name everyone gives to their mistakes." -- Oscar Wilde