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Tableau Support

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1. On the target server you're going to upgrade, confirm that there are no current users: (e.g. https://tableau-dev.broadinstitute.org/#/server/analysis/ActionsbyRecentUsers)
2. Log in to VM of target server (e.g. tableau-dev).
3. Command prompt: C:\> tabadmin stop
4. In the start menu, Add or Remove Programs, right click on Tableau Server & "uninstall" (this takes a while)
5. On target VM, navigate to the newly downloaded file, open it, accept all defaults during setup/installation.
6. Paste in the User (e.g CHARLES\tableau_auth) & password (initialization takes quite a while)
7. Once it's done (it'll try to launch IE), trash any *.tsbak from C:\ProgramData\Tableau\Tableau Server\ & any tabsvc.bak* from C:\ProgramData\Tableau\Tableau Server\data\ and empty the recycle bin.
8. Ensure that the server is back online.
9. (Major upgrade only) Start > Environmental Variables / System variables (Edit and change TABLEAU_BIN to C:\Program Files\Tableau\Tableau Server\#.#\bin) Save & Close.
10. (Major upgrade only) Restart Windows to force PATH variable to re-source %TABLEAU_BIN%. Confirm updated path using "where tabadmin" command
11. Test & validate reports on server, including backups & restores from prod to upgraded dev/beta.
12. Update the version in the Server Summary table at the top of this page.

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For reference, see

Operating System requirements

Broad's Tableau Servers run on Windows Server 2008 R2 (aka Windows NT 6.1). Tableau will require Windows Server 2012 starting in 2020 and Windows Server 2016 starring in 2021.

https://www.tableau.com/about/blog/2019/3/looking-ahead-updates-tableau-server-operating-system-requirements-103360