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Merge pull request #10594 from joshtrichards/jr-primary-storage-data-recovery-implications

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Julius Härtl
2023-06-09 16:36:19 +02:00
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commit 7811a3d344
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admin_manual/configuration_files/primary_storage.rst
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@@ -11,21 +11,32 @@ By default, files are stored in :code:`nextcloud/data` or another directory conf
in the :code:`config.php` of your Nextcloud instance. This data directory might
still be used for compatibility reasons)
------------
Implications
------------
---------------------------------
Differences from External Storage
---------------------------------
When using an object store as primary storage, Nextcloud assumes exclusive access
over the bucket being used.
When an object store is used as Primary Storage, Nextcloud requires exclusive access
over the bucket being used. All metadata (filenames, directory structures, etc)
is stored in Nextcloud and not in the object store. The metadata is only stored in the database and the
object store only holds the file content by unique identifier.
Contrary to using an object store as external storage, when an object store is used
as primary storage, no metadata (names, directory structures, etc) is stored in the
object store. The metadata is only stored in the database and the object store only
holds the file content by unique identifier.
~~~~~~~~~~~~~~~~~~~~~~~~
Performance Implications
~~~~~~~~~~~~~~~~~~~~~~~~
Because of this primary object stores usually perform better than when using the same
object store as external storage but it restricts being able to access the files from
outside of Nextcloud.
Because of this, object stores configured as Primary Storage usually perform better than
when using the same object store via the External Storage support application, but the downside
is being unable to access the files from outside of Nextcloud. This makes using an object store
as Primary Storage distinct from using using an object store via External Storage.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Data Backup and Recovery Implications
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
One impact of using an object store as Primary Storage is that your data backup strategy
needs to incorporate this. **Your data is longer stored on your Nextcloud server, but your
files are also no longer accessible by simply bypassing your Nextcloud server and accessing
your object store directly.**
-------------
Configuration