Migration 4.2 to 6.3

[Berkay Tuncel]

Hi all,

I need some assistance about migration. You can say make upgrade instead of migration; but I am also changing server and operating system. That's why, I installed DSpace 6.3 as a new instance Now, I want to move all data to new instance.

Is there any migration document for that situation?

In my humble opinion, I can use AIP Backup/Restore for my aim. Also, I can copy some files that are customized. Nevertheless, I have custom metadatas in dc and dcterms registries. Do that customizations move with AIP restoration? 

Thanks a lot.

Best regards.

[Tim Donohue]

Hi,

DSpace stores all content files in the [dspace]/assestore/ folder (in a hierarchy of subfolders), and all metadata is stored in the Database.  So, one way to migrate DSpace from one server to another is to 

(1) Install DSpace 6.x on the new server, 

(2) Copy the [dspace]/assetstore from the old server to the new one (this directory structure is identical in all versions of DSpace)

(3) Delete the (default) empty database on the new server, 

(4) Dump the database from the old server (using a tool like pg_dump from PostgreSQL) and recreate it on the new server (using a tool like pg_restore from PostgreSQL)...  when Tomcat starts up, it should auto-upgrade this database to being compatible with 6.x, or you can run `dspace database migrate` from commandline.

(5) Finally, start Tomcat up and see if it works.  You then may need to recustomize the User Interface and/or configurations if necessary.

You also could use the AIP Backup and Restore tool, but there are some things that may be lost (namely configuration, in-progress submissions, and custom metadata schemas).  A full list of the differences can be found in the documentation at https://wiki.duraspace.org/display/DSDOC6x/AIP+Backup+and+Restore#AIPBackupandRestore-HowdoesthisdifferfromtraditionalDSpaceBackups?WhichBackuprouteisbetter?

Hopefully that helps clarify.  Let us know on this list if you have further questions.

Tim

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From: dspac...@googlegroups.com <dspac...@googlegroups.com> on behalf of Berkay Tuncel <tuncel...@gmail.com>
Sent: Friday, September 27, 2019 8:55 AM
To: DSpace Technical Support <dspac...@googlegroups.com>
Subject: [dspace-tech] Migration 4.2 to 6.3

 

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