Troubleshooting Course Content Rough Drafts-ZCS Upgrades: Difference between revisions
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=====Ensure that you have a Premium Support package if upgrading on a weekend===== | =====Ensure that you have a Premium Support package if upgrading on a weekend===== | ||
====Notify Support in advance | =====Notify Support in advance===== | ||
=====Giving Zimbra Support Access To Servers During The Scheduled Upgrade Time - Plan Ahead===== | |||
====Use 3rd party Snapshot software to easily rollback to a previous state==== | ====Use 3rd party Snapshot software to easily rollback to a previous state==== |
Revision as of 14:16, 18 February 2015
Proposed Content
The following list of course topics was generated during a discussion with Adam Cody and subsequent research into performing Zimbra upgrades.
Single Server Upgrade
Planning an Upgrade
Read Release & Upgrade Notes and have them available for reference
Release & Upgrade Notes are available on the same webpage you'll be downloading the ZCS installer from.
Refer to wiki page of known issues for each release (example: recent IE issues)
Zimbra Support has started been maintaining wiki pages on the various ZCS releases and have been noting 'issues' they've discovered after the release. You can find the wiki pages at the following location for the various ZCS releases where they have done this:
Ensure that you have access to the Support Portal
Validate your Zimbra license
Ensure that you have a Support contract
Ensure that you have a Premium Support package if upgrading on a weekend
Notify Support in advance
Giving Zimbra Support Access To Servers During The Scheduled Upgrade Time - Plan Ahead
Use 3rd party Snapshot software to easily rollback to a previous state
Have a Disaster Recovery plan! Zimbra does not support rollbacks from an Upgrade. You must do a disaster recovery.
Block mail flow to server(s) until successful upgrade is verified to prevent loss of email delivered during the upgrade
Confirm there is a current backup available
Determining Your Upgrade Plan - Multiple ZCS Version Upgrades and/or required OS Upgrades
Document Your Upgrade Plan
- Increases repeated success
- Helps when having to interact with Zimbra Support team
Testing an Upgrade
Determine duration
Determine point at which you will do disaster recovery if the upgrade will not be finished by working hour deadline
Ensure that Zimlets are supported in the Zimbra version you will be using (example: email templates Zimlet)
Ensure that any other 3rd party customizations function properly
Testing Backup and Archiving after an Upgrade
Restoring Zimbra customizations and branding post Upgrade
Using Upgrade log files
Multi Server Upgrade
Upgrading servers in the correct order
Rolling Upgrades
Adding new servers during an upgrade
Adding a proxy server for Zimbra 8.6 and higher
Patches