Upgrade the AirWatch Cloud Connector (ACC) from the AirWatch Console to take advantage of the latest bug fixes and enhancements. This process can be automated using the ACC auto-update option, or performed manually for situations where administrative control is a priority.

Note:

For information about upgrading the VMware Identity Manager Connector component, see Upgrading VMware Identity Manager Connector.

ACC Auto-Update

When you install ACC, by default, the auto-update check box is selected. Auto-update allows ACC to upgrade automatically to the latest version without user intervention by querying AirWatch for newer versions of ACC. AirWatch recommends that you allow auto-update (do not deselect the check box), but AirWatch made this optional for those environments and situations in which manual upgrades are preferred.

Note:

The auto-update option only applies to the ACC component of the Enterprise Systems Connector. It does not apply to the VMware Identity Manager Connector component.

Benefits to Auto-Update

  • No need to determine manually if you need to upgrade and then have to search for the latest ACC version - the software does it for you.

  • You always have the latest features, enhancements, and fixes.

  • Most importantly, you have the most up-to-date security.

Update Process

ACC auto-update is performed using the Bank1 and Bank2 folders inside the Cloud Connector folder. AirWatch detects which of these folders is empty and streams the appropriate ACC files into it, in addition to emptying the contents of the other folder. For the subsequent update, AirWatch repeats the process except for the alternate folder. This process repeats each time a new version is auto-updated. This process is illustrated in the Update Process Flow figure.

Important:

Do not delete the Bank1 or Bank2 folders. The Bank1 and Bank2 folders are integral to the ACC auto-update process.

Figure 1. Update Process Flow

Auto-Update Security

ACC auto-updates are performed with security in mind. Every update is signed by the AirWatch Console and verified by ACC, so it only updates itself with a trusted upgrade. The upgrade process is also transparent to the AirWatch Admin. When a newer version is available, ACC knows from querying the AirWatch Console on port 443, and then an upgrade occurs.

While ACC is upgrading to the latest version, it is not available, so there is a short loss of service (that is, approx. 1 minute). When multiple ACC servers are installed, to ensure that all ACC services are not down at the same time, AirWatch incorporates a random timer to the upgrade process so ACC outages occur at different times for short periods of time.

If the ACC auto-updates, the version under Add or Remove Programs does not change - the original version is still listed. The version under Add or Remove Programs only changes when you run the full ACC installer. The best way to verify if the auto-update succeeded is to look in the ACC logs for what version is running.

Effects of Disabling Auto-Update

If you choose to disable this feature and ACC is not upgraded, ACC remains operational until any one of the following occurs.

  • ACC is powered off and then on (purposely or a power outage).

  • ACC must be reinstalled.

  • AirWatch Console is upgraded to a later version.

  • AirWatch, AWCM, or ACC certificates are regenerated. When certificates are regenerated the latest version of ACC must be installed and rebooted to recognize the new certificates.