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FatRabbit
Asked: 2020-05-06 03:17:14 +0800 CST

upgrading drbd8 to drbd9

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Bonjour,

We have 3 identical nodes running drbd version: 8.4.7 (api:1/proto:86-101) and upgrade to drbd9 is on the menu.

Is it safe to have drbd8 running alongside with drbd9? at least during upgrade process.

Thanks!

--- system config (identical nodes)

  • Ubuntu server 18.04 (end of life) upgrading to Ubuntu 20
  • HD= 2x2TBytes per node
  • RAM= 32GBytes
  • drbd version: 8.4.7 (api:1/proto:86-101) -- srcversion: 7FA2FF168828B1B272D3F92
upgrade

1 Answers

  1. a drbd node on 8.4 can replicate to a node with drbd 9.0 , BUT NOT THE OPPOSITE

    The process is well documentated on the website of linbit ( creator of drbd ) .

    https://www.linbit.com/drbd-user-guide/drbd-guide-9_0-en/#s-upgrading-drbd

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