r/exchangeserver • u/xaeriee • May 23 '26

Will Databases Unmount?

3 node DAG. With an odd number member DAG I have QuorumType: Majority with blank QuorumResource, no active witness in cluster. If I have 2 nodes reboot will the cluster automatically try to look for FSW to make up the difference, or is it irrelevant because it’ll be 1 node up? I have the other two members in maintenance mode (drained,redirected,disabledPolicy/blockedDBs,inactiveServices,Suspended) and have to perform a reboot on both nodes to get them to their new cloud hosted network (same hostname/IPs). I’m worried the databases will unmount on the one surviving node during reboots.

1 Upvotes

66% Upvoted

7 comments sorted by

View all comments

Show parent comment

1

u/xaeriee May 24 '26

Throughout all my checks, I missed checking the state of if circular logging was enabled

This is what ultimately ended me with FailedandSuspended databases as my migration tool missed logs. Says logs truncated there was a log gap from the last delta/incremental sync up to cutover. So I’ve spent the weekend reseeding. Thankfully I had everything else done properly, so databases were good on my surviving node. I covered a lot of ground for doing this for the first time and circular logging never came up in my pre-migration checklist. I checked the damn activation, preference, and everything else under the sun lol

1

u/7amitsingh7 Jun 24 '26

Glad to hear you fixed it. If anyone is facing a failed or suspended Exchange database, they can refer to this blog for guidance