i found something good on this topic:
https://wiki.duraspace.org/display/DSDOC4x/AIP+Backup+and+Restore#AIPBackupandRestore-RestoringEntireSite
Flavio Vieira Pontes <https://wiki.duraspace.org/display/~flavio>
Is it possible to use AIP to move the entire site from a earlier version to
the most recent version?
- Jan 24, 2014
<https://wiki.duraspace.org/display/DSDOC4x/AIP+Backup+and+Restore?focusedCommentId=43319812#comment-43319812>
1.
[image: User icon: tdonohue]
<https://wiki.duraspace.org/display/~tdonohue>
Tim Donohue <https://wiki.duraspace.org/display/~tdonohue>
Yes, it should be possible to use the AIP tools to upgrade from one
version to another. Though there are some limitations:
- Your older version of DSpace would need to be *at least* DSpace 1.7
(AIP Backup tools do not exist prior to DSpace 1.7)
- If you are using the newer "Item Level Versioning" feature, AIPs do
NOT capture all versions of Items, so any prior versions of
Items would be
lost. AIPs also do NOT capture in-process items (e.g. deposits
which users
have begun in DSpace but never completed), so those would be
lost as well.
See the details of what is and is not supported in AIP backups in this
section above: How does this differ from traditional DSpace Backups?
<https://wiki.duraspace.org/display/DSDOC4x/AIP+Backup+and+Restore#AIPBackupandRestore-HowdoesthisdifferfromtraditionalDSpaceBackups?WhichBackuprouteisbetter>
- When importing into the new version of DSpace, you MUST use the
"Restore/Replace Mode" (-r) documented above. Otherwise your
handles will
not be restored properly.
- I'd *highly recommend* testing the process first on a test server
before trying it in Production. There have been various bug fixes to the
AIP backup & restore process in recent versions (1.8, 3.0, 4.0), so you
really should fully test that it will work properly for you.
Based on all those limitations, it may or may not be easier than just
performing a normal DSpace Upgrade
<https://wiki.duraspace.org/display/DSDOC4x/Upgrading+DSpace>
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