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Can't move active database in DAG Exchange 2010 RRS feed

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    We have DAG with 2 mailbox server members

    Server 1 has CAS, hub and mailbox roles
    Server 2 has mailbox role only

    I've setup DAG between 2 servers sharing 15 databases. I'm facing 2 issues:

    1. Half of the database passive copies are in Failed and Suspended state with ContentIndexState Failed

    I've trying to reseed server with following commands:

    Suspend-MailboxDatabaseCopy -Identity "DBNAME\SERVERNAME"
    Update-MailboxDatabaseCopy -Identity "DBNAME\SERVERNAME" -DeleteFiles

    I works sometime and fails sometime

    2nd issue is I have some of the active dbs on one server and some on the other and I'm trying to bring all active dbs on one server with following command:


    Move-ActiveMailboxDatabase -Identity 'DBNAME' -MountDialOverride 'BestEffort' -skiplagchecks -ActivateOnServer 'SERVERNAME'

    it fails as well


    • Edited by RTITDEPT Friday, January 16, 2015 8:56 PM
    Wednesday, January 14, 2015 7:52 PM

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    Hi,

    For the first issue, this problem may be related to the corrupt logs on the active node.

    Please reset the log sequence on the active node and then reseed passive mailbox database copy to check result. Make Sure you have backup of database.

    • Dismount the active database
    • Check the health of the database on the active node and confirm that the state is clean shut down
    • Then we will move the log files from the active node to a temp folder ( where you have space )
    • Mount the active database
    • Now we will have a new sequence of log files on active database
    • Now we will reseed the database with new sequence of log files to passive ( Make sure you select
    –DeleteExistingFiles  - which will delete the log files and database in passive )

    For the second issue, please check if the passive node you want to active database has failed content index. If the content index is failed, then you will get error message.

    To troubleshoot this problem more efficiently, please post the error message here for further analysis.

    Besides, please check the application log on the affected server to check if there is any related events.

    Best regards,

    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com

    Belinda Ma
    TechNet Community Support

    • Proposed as answer by Belinda Ma Monday, January 26, 2015 5:51 AM
    • Marked as answer by Belinda Ma Tuesday, January 27, 2015 2:20 AM
    Thursday, January 15, 2015 8:00 AM
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    Hi,

    The Preference count list column shows the count of the number of databases with each of these values. In your case, there are 1 database copy with an activation preference of 1, 13 copies with an activation preference of 2. For more details about this, you can refer to the following article.

    http://technet.microsoft.com/en-gb/library/dd335158(v=exchg.150).aspx

    In the server EX01 which is RTEXCHANGE, you have 13 active database copies and one passive database copy. And there are 13 passive database copies and 1 active database copy on server EX02 that is RTEXCHANGE02. You want to active all database on server EX01. You can't move active database to server EX01, however you can move to EX02 successfully.

    It seems that the issue is related to the passive database copy on server EX01. Please update this database copy using the DeleteExistingFiles parameter and restart the replication service, then try to move active database to EX01 to check result.

    From the last picture you provided above, I didn't see the error message you got when you moved the cluster group.

    Best regards,

    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com

    Belinda Ma
    TechNet Community Support

    • Proposed as answer by Belinda Ma Monday, January 26, 2015 5:51 AM
    • Marked as answer by Belinda Ma Tuesday, January 27, 2015 2:20 AM
    Monday, January 19, 2015 9:34 AM

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    Hi,

    For the first issue, this problem may be related to the corrupt logs on the active node.

    Please reset the log sequence on the active node and then reseed passive mailbox database copy to check result. Make Sure you have backup of database.

    • Dismount the active database
    • Check the health of the database on the active node and confirm that the state is clean shut down
    • Then we will move the log files from the active node to a temp folder ( where you have space )
    • Mount the active database
    • Now we will have a new sequence of log files on active database
    • Now we will reseed the database with new sequence of log files to passive ( Make sure you select
    –DeleteExistingFiles  - which will delete the log files and database in passive )

    For the second issue, please check if the passive node you want to active database has failed content index. If the content index is failed, then you will get error message.

    To troubleshoot this problem more efficiently, please post the error message here for further analysis.

    Besides, please check the application log on the affected server to check if there is any related events.

    Best regards,

    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com

    Belinda Ma
    TechNet Community Support

    • Proposed as answer by Belinda Ma Monday, January 26, 2015 5:51 AM
    • Marked as answer by Belinda Ma Tuesday, January 27, 2015 2:20 AM
    Thursday, January 15, 2015 8:00 AM
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    Belinda, thank you for your reply

    I was able to successfully reseed all mailboxdatabases - so all dbs have "healthy" or "mounted" status

    However I still can't move active database between 2 servers but it only fails one way

    EX01 - has CAS, HUB and Mailbox roles and is also a PAM

    EX02 - is Mailbox only and a SAM

    When I try to activate passive copy on EX02 it works fine but always fails on EX01

    The error is fairly generic " Unable to mount database"


    • Edited by RTITDEPT Saturday, January 17, 2015 4:54 PM
    Friday, January 16, 2015 6:28 PM
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    So I did some more digging and found this useful script. My question now is what is PreferenceCountList and why it says 1,13 ??
    Friday, January 16, 2015 7:03 PM
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    receiving this error when trying to Redistribute Databases according to activation preference

    Friday, January 16, 2015 7:12 PM
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    In addition I can' make EX01 Primary Active Manager in cluster - if fails when I try to move it from EX02

    Saturday, January 17, 2015 5:16 PM
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    Hi,

    The Preference count list column shows the count of the number of databases with each of these values. In your case, there are 1 database copy with an activation preference of 1, 13 copies with an activation preference of 2. For more details about this, you can refer to the following article.

    http://technet.microsoft.com/en-gb/library/dd335158(v=exchg.150).aspx

    In the server EX01 which is RTEXCHANGE, you have 13 active database copies and one passive database copy. And there are 13 passive database copies and 1 active database copy on server EX02 that is RTEXCHANGE02. You want to active all database on server EX01. You can't move active database to server EX01, however you can move to EX02 successfully.

    It seems that the issue is related to the passive database copy on server EX01. Please update this database copy using the DeleteExistingFiles parameter and restart the replication service, then try to move active database to EX01 to check result.

    From the last picture you provided above, I didn't see the error message you got when you moved the cluster group.

    Best regards,

    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com

    Belinda Ma
    TechNet Community Support

    • Proposed as answer by Belinda Ma Monday, January 26, 2015 5:51 AM
    • Marked as answer by Belinda Ma Tuesday, January 27, 2015 2:20 AM
    Monday, January 19, 2015 9:34 AM
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    You're getting an ec 1105 when moving to a Healthy passive copy?
    Monday, January 19, 2015 7:25 PM
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    Hi,

    Is there any update on this issue?

    Best regards,

    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com

    Belinda Ma
    TechNet Community Support

    Wednesday, January 21, 2015 1:59 AM
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    There has been additional switches which are made available in exchange 2010 SP2 and later for being able to mount the databases even if the content Index state is not healthy.

    -SkipActiveCopyChecks -SkipClientExperienceChecks -SkipHealthChecks -SkipLagChecks

    You may have to consider using these additional switches along with Move-ActiveMailboxDatabase cmdlet.

    Pavan Maganti ~ ( Exchange | 2003/2007/2010/E15(2013)) ~~ Please remember to click “Vote As Helpful" if it really helps and "Mark as Answer” if it answers your question, “Unmark as Answer” if a marked post does not actually answer your question. ~~ This Information is provided is "AS IS" and confers NO Rights!!

    Thursday, January 22, 2015 11:42 AM