[DPE-2414] Storage reuse #194
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dmitry-ratushnyy
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Problem
Current HA Test Suite does not test whether MongoDB properly re-uses storage.
Context
What it means to reuse storage is that when storage is reattached to the juju unit, that the mongo daemon recognises this storage and instead of performing the typical sync from the primary that it instead only syncs what is necessary by computing the diff of what the old storage already has
In Juju versions before 2.9.43, this cannot be tested as there was a bug with storage reuse
Solution
Add a test that tests storage reuse