XI needs a Database

Hi experts,
I am writing a diploma-thesis regarding load-testing on XI.
To my knowledge, XI will need a database for e.g. persistency management or archiving messages. Therefore XI won't work without a database...
I am looking for an official SAP document, which exactly says this...
I hope you can provide me such a document.
Thanks and Regrads,
Sebastian
Message was edited by:
Sebastian Geissler
Message was edited by:
Sebastian Geissler

Hi Sebastian,
Please go through the XI installation guide.
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/a5550de0-0701-0010-a8b4-9fd433a080f3 (official document)
Unicode SAP Web AS ABAP + Java system is prerequisite for core SAP XI. (Page 16)
So XI seats on SAP Web AS and SAP Web AS seats on Database.
Hope this will help.
- Pinkle

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