An alternate file share witness server is presented as a safety net and a method for establishing quorum during outages that take down an entire site.
- [Narrator] When we left things in the last video,…there was still one piece of the puzzle that we needed…to finish up.…We had two sites with two exchange nodes,…and a File Share Witness at one data center,…and two exchange nodes in a secondary location.…Then when the primary location went offline,…the data center with only two exchange nodes…restored the DAG to takeover.…However, there were only two nodes.…That's an even number, there is no tie-breaker vote,…so there is no quorum.…
When you turn data center activation coordination on,…you need to consider the number of exchanges nodes…at each site.…If there's an odd number, then your ability to maintain…quorum takes care of itself,…but there's always the chance that this won't be the case.…So you should always specify…an Alternate File Share Witness.…The requirements for an Alternate File Share Witness…are the same as they were for the File Share Witness…that we've set up in previous chapters.…
It needs to be a server that's a member…of the active directory forest,…
AuthorScott M Burrell
- Planning and managing database storage
- Setting database requirements
- Storage architecture
- Virtualization scenarios
- Creating and managing mailbox databases
- Failure domains and SLA requirements
- Proper placement of a file share witness
- Site resilient DAG
- Troubleshooting database replication, performance, and database failure
- Planning for SLA recovery requirements
Skill Level Intermediate
Deploying Exchange Server 2016with Robert McMillen3h 1m Intermediate
Exchange 2016: Client Access Serviceswith Scott M Burrell1h 50m Intermediate
Exchange 2016: Transport Serviceswith Scott M Burrell2h 24m Intermediate
1. Plan and Manage Database Storage
2. High Availability Mailbox Databases
3. Site Resilient DAG
4. Troubleshooting Mailbox Databases
5. Backup and Recovery Solutions
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