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<figure class="wp-block-image"><img src="https://lh3.googleusercontent.com/rjV95RD6IVt1hy2XouAXosBsFzPbXcKt-dL7IrJqVwxwljm1Hd3KdUZyPbwUwjGaMn_xPZ3SWB-Al4qE6xv0eQP4qBWvRHh4wGqhVqbX5u41dfQIm7cd=w673" alt=""/> 

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</figure>



<p><strong>Detailed Error:</strong></p>
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<p>Database redundancy health check failed.</p>



<p>Database copy: DATABASE_3</p>



<p>Redundancy count: 1</p>



<p>Error: Passive copy &#8216;DATABASE_3\EXCH02&#8217; is not in a good state. Status: DisconnectedAndResynchronizing.</p>



<p>Name Status RealCopyQueu InspectorQue ReplayQueue CIState</p>



<p> e ue </p>



<p>&#8212;- &#8212;&#8212; &#8212;&#8212;&#8212;&#8212; &#8212;&#8212;&#8212;&#8212; &#8212;&#8212;&#8212;&#8211; &#8212;&#8212;-</p>



<p>DATABASE_3\EX Disconnected And Resynchronizing 426 0 0 Healthy</p>



<p>CH02 </p>



<p>DATABASE_3\EX Mounted 0 0 0 Healthy</p>



<p>CH01</p>



<p>===============</p>



<p> Full Status</p>



<p>===============</p>



<p>Identity : DATABASE_3\EXCH02</p>



<p>Name : DATABASE_3\EXCH02</p>



<p>DatabaseName : DATABASE_3</p>



<p>Status : DisconnectedAndResynchronizing</p>



<p>MailboxServer : EXCH02</p>



<p>ActiveDatabaseCopy : exch01</p>



<p>ActivationSuspended : False</p>



<p>ActionInitiator : Unknown</p>



<p>ErrorMessage : The Microsoft Exchange Replication service w</p>



<p> as unable to perform an incremental reseed o</p>



<p> f database copy &#8216;DATABASE_3\EXCH02&#8217; due to a</p>



<p> network error. The database copy status wil</p>



<p> l be set to Disconnected. Error An error occ</p>



<p> urred while communicating with server &#8216;EXCH0</p>



<p> 1&#8242;. Error: Unable to read data from the tran</p>



<p> sport connection: A connection attempt faile</p>



<p> d because the connected party did not proper</p>



<p> ly respond after a period of time, or establ</p>



<p> ished connection failed because connected ho</p>



<p> st has failed to respond.</p>



<p>ErrorEventId : 2058</p>



<p>ExtendedErrorInfo :</p>



<p>SuspendComment :</p>



<p>SinglePageRestore : 0</p>



<p>ContentIndexState : Healthy</p>



<p>ContentIndexErrorMessage :</p>



<p>CopyQueueLength : 426</p>



<p>ReplayQueueLength : 0</p>



<p>LatestAvailableLogTime : 14.01.2014 07:13:37</p>



<p>LastCopyNotificationedLogTime : 14.01.2014 07:13:37</p>



<p>LastCopiedLogTime : 14.01.2014 07:11:52</p>



<p>LastInspectedLogTime : 14.01.2014 07:11:52</p>



<p>LastReplayedLogTime : 14.01.2014 07:11:52</p>



<p>LastLogGenerated : 592826</p>



<p>LastLogCopyNotified : 592400</p>



<p>LastLogCopied : 592400</p>



<p>LastLogInspected : 592400</p>



<p>LastLogReplayed : 592400</p>



<p>LogsReplayedSinceInstanceStart : 0</p>



<p>LogsCopiedSinceInstanceStart : 0</p>



<p>LatestFullBackupTime :</p>



<p>LatestIncrementalBackupTime :</p>



<p>LatestDifferentialBackupTime :</p>



<p>LatestCopyBackupTime :</p>



<p>SnapshotBackup :</p>
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<p>SnapshotLatestFullBackup :</p>



<p>SnapshotLatestIncrementalBackup :</p>



<p>SnapshotLatestDifferentialBackup :</p>



<p>SnapshotLatestCopyBackup :</p>



<p>LogReplayQueueIncreasing : False</p>



<p>LogCopyQueueIncreasing : False</p>



<p>OutstandingDumpsterRequests : {}</p>



<p>OutgoingConnections :</p>



<p>IncomingLogCopyingNetwork :</p>



<p>SeedingNetwork :</p>



<p>ActiveCopy : False</p>



<p>Identity : DATABASE_3\EXCH01</p>



<p>Name : DATABASE_3\EXCH01</p>



<p>DatabaseName : DATABASE_3</p>



<p>Status : Mounted</p>



<p>MailboxServer : EXCH01</p>



<p>ActiveDatabaseCopy : exch01</p>



<p>ActivationSuspended : False</p>



<p>ActionInitiator : Service</p>



<p>ErrorMessage :</p>



<p>ErrorEventId :</p>



<p>ExtendedErrorInfo :</p>



<p>SuspendComment :</p>



<p>SinglePageRestore : 0</p>



<p>ContentIndexState : Healthy</p>



<p>ContentIndexErrorMessage :</p>



<p>CopyQueueLength : 0</p>



<p>ReplayQueueLength : 0</p>



<p>LatestAvailableLogTime :</p>



<p>LastCopyNotificationedLogTime :</p>



<p>LastCopiedLogTime :</p>



<p>LastInspectedLogTime :</p>



<p>LastReplayedLogTime :</p>



<p>LastLogGenerated : 0</p>



<p>LastLogCopyNotified : 0</p>



<p>LastLogCopied : 0</p>



<p>LastLogInspected : 0</p>



<p>LastLogReplayed : 0</p>



<p>LogsReplayedSinceInstanceStart : 0</p>



<p>LogsCopiedSinceInstanceStart : 0</p>



<p>LatestFullBackupTime :</p>



<p>LatestIncrementalBackupTime :</p>



<p>LatestDifferentialBackupTime :</p>



<p>LatestCopyBackupTime :</p>



<p>SnapshotBackup :</p>



<p>SnapshotLatestFullBackup :</p>



<p>SnapshotLatestIncrementalBackup :</p>



<p>SnapshotLatestDifferentialBackup :</p>



<p>SnapshotLatestCopyBackup :</p>



<p>LogReplayQueueIncreasing : False</p>



<p>LogCopyQueueIncreasing : False</p>



<p>OutstandingDumpsterRequests : {}</p>



<p>OutgoingConnections :</p>



<p>IncomingLogCopyingNetwork :</p>



<p>SeedingNetwork :</p>



<p>ActiveCopy : True</p>



<p><strong>Resolution:</strong></p>



<p>To resolve this issue, check if the database which is having the issue is over 1TB and if that&#8217;s the case try to remove some users from this database to another database.</p>



<p>To view the users of this database using the following powershell cmdlet.</p>
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<p>Get-MailboxDatabase &#8220;Mailbox Database 1&#8221; | Get-MailboxStatistics | Sort totalitemsize -desc | Export-CSV C:\mailboxes.csv</p>

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