[Beowulf] Lustre Upgrades

John Hearns hearnsj at googlemail.com
Tue Jul 24 07:31:00 PDT 2018

Forgive me for saying this, but the philosophy for software defined storage
such as CEPH and Gluster is that forklift style upgrades should not be
When a storage server is to be retired the data is copied onto the new
server then the old one taken out of service. Well, copied is not the
correct word, as there are erasure-coded copies of the data. Rebalanced is
probaby a better word.

Sorry if I am seeming to be a smartarse. I have gone through the pain of
forklift style upgrades in the past when storage arrays reach End of Life.
I just really like the Software Defined Storage mantra - no component
should be a point of failure.
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