Bug 1956427 - [Doc] RBD volume created from snapshot on encrypted volume cannot be used [NEEDINFO]
Summary: [Doc] RBD volume created from snapshot on encrypted volume cannot be used
Keywords:
Status: NEW
Alias: None
Product: Red Hat OpenStack
Classification: Red Hat
Component: documentation
Version: 16.0 (Train)
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
: ---
Assignee: Alex McLeod
QA Contact: RHOS Documentation Team
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-05-03 16:36 UTC by Sofia Enriquez
Modified: 2021-05-14 14:23 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed:
Target Upstream Version:
amcleod: needinfo? (senrique)


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Description Sofia Enriquez 2021-05-03 16:36:00 UTC
This bug was initially created as a copy of Bug #1772531

I am copying this bug because: we need to add some warning in the documentation.

[RBD only bug] 

Creating a volume from a snapshot of an encrypted volume may result in an unusable volume.
Detectable only by looking at behaviour inside the instance upon attach.

Creating encrypted volume from a snapshot -created from a
source encrypted volume as well- will be forced to resize and  lose the encrypted header.

When creating an encrypted volume from a snapshot of an encrypted volume, if the amount
of data in the original volume at the time the snapshot was created is very close to the
gigabyte boundary given by the volume's size, it is possible for the data in the new
volume to be silently truncated.


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