Skip to content

Allow copy of templates from secondary storages of same or other zone when adding a new secondary storage #611

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
harikrishna-patnala wants to merge 5 commits into
base: 4.20
Choose a base branch
from
Open

Allow copy of templates from secondary storages of same or other zone when adding a new secondary storage #611

Changes from 1 commit
Commits
Show all changes
5 commits
Select commit Hold shift + click to select a range
822838b
Improvements added in making the existing templates available on newl…
harikrishna-patnala Dec 18, 2025
adc272a
Added parameter details
harikrishna-patnala Dec 29, 2025
c4e9ba6
corrections
harikrishna-patnala Dec 29, 2025
423da79
more corrections
harikrishna-patnala Dec 29, 2025
07514df
Correction
harikrishna-patnala Jan 5, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
20 changes: 20 additions & 0 deletions source/installguide/configuration.rst
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1705,6 +1705,26 @@ add more servers to an existing zone.
- Path. The path to the zone's Secondary Staging Store.


When a new Secondary Storage is added, the Management Server attempts to make
existing templates available on the new Secondary Storage.

CloudStack improves template availability using the configuration:

+----------------------------------------------+-------------------------------------------------------------------------------------------------------------+-----------+
| Name | Description | Default |
+==============================================+=============================================================================================================+===========+
| copy.templates.from.other.secondary.storages | Allow templates to be copied from existing Secondary Storage servers (within the same zone or across zones) | true |
| | when adding a new Secondary Storage, instead of downloading them from the source URL. | |
+----------------------------------------------+-------------------------------------------------------------------------------------------------------------+-----------+

This setting is enabled by default and can be configured globally or at zone level.

CloudStack applies the following order of steps while trying to make a template available in the new secondary storage:

1. Attempt to copy the template from another Secondary Storage in the same zone.
2. If not found, attempt to copy the template from a Secondary Storage in a different zone.
3. If the copy operation fails, CloudStack falls back to downloading the template using its URL when it is registered.

Adding an NFS Secondary Staging Store for Each Zone
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Expand Down