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Upgrading a DLS Multi-Node Environment

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Revision as of 19:46, 23 November 2014 by Konstantinos Kontogiannis (talk | contribs) (Created page with " When upgrading DLS Multi-Node deployments, mind the following : * Always backup the DLS database in case of errors to revert back to a previous state if needed. * Perform ...")
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When upgrading DLS Multi-Node deployments, mind the following :

  • Always backup the DLS database in case of errors to revert back to a previous state if needed.
  • Perform a simple Update Installation of all nodes required as per regular Single Node upgrades.
  • Make sure that the installation is not executed concurrently on all nodes but one at a time.
  • Avoid as much as possible actions on the Network Load Balancer, the SQL server(s) and client connections to DLS and the Mobility feature while the upgrade takes place
  • When an upgrade is performed in deployments with remote database ,a popup window will be displayed at the beginning of the upgrade requesting to disable Mirroring in order to get a database backup by either removing the mirroring and retry (retry), abort (abort) or continue (ignore).
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