Hi @David McBride,
Welcome to the Microsoft Q&A platform!
According to your description, you currently find error 1068 in Event Viewer, and the maintenance project of database "mailboxDB" failed.
I suggest you try to follow the steps below to troubleshoot:
- Make sure your server has enough CPU, memory, and disk resources available. Insufficient resources may cause maintenance tasks to fail.
- Navigate to Event Viewer > Exchange Server > Mailbox > Microsoft Application and Service Logs. Look for any relevant warning or error messages.
- Exchange runs various online maintenance tasks, such as database defragmentation, index cleanup, etc. You can use PowerShell to check the status of the following tasks:
Get-MailboxDatabase -Status | Format ListName,Maintenance*
- You can use the "Get-MailboxDatabaseCopyStatus" cmdlet to check the health of the database copy:
Get-MailboxDatabaseCopyStatus -Identity "mailboxDB"
- Run an online integrity check to ensure that there are no potential issues with the database:
New-MailboxRepairRequest -Database "mailboxDB" -CorruptionType SearchFolder, AggregateCounts, ProvisionedFolder, FolderView
- Make sure your maintenance schedule is configured correctly. You can use the following cmdlet to check and adjust the maintenance schedule:
Set-MailboxDatabase -Identity "mailboxDB" -MaintenanceSchedule (New-MaintenanceSchedule -DailyFrom 01:00:00 -DailyTo 05:00:00)
Please feel free to contact me if you have any queries.
Best,
Jake Zhang