Product Documentation

Demote and promote StorageZones Controllers

Sep 27, 2015

In a high availability deployment the secondary servers are independent, fully functioning StorageZones Controllers. To maintain or replace a primary StorageZones Controller, demote it first and then promote a secondary controller. If the primary server goes offline, you can promote a secondary server to primary.

Caution: Editing the registry incorrectly can cause serious problems that may require you to reinstall your operating system. Citrix cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk. Be sure to back up the registry before you edit it.
  1. To demote a primary StorageZones Controller:
    1. Locate the Registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Citrix\StorageCenter
    2. Set isPrimaryConfigServer to false.
    3. Set PrimaryConfigServiceUrl to the URL of the server that will be the new primary StorageZones Controller, using the form http://ipAddress_or_hostname/ConfigService/.
    4. Restart the IIS server of all zone members.
  2. To promote a secondary StorageZones Controller:
    1. Locate the Registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Citrix\StorageCenter
    2. Set isPrimaryConfigServer to true.
    3. Set PrimaryConfigServiceUrl to http://localhost/ConfigService/.
    4. Restart the IIS server of all zone members.