Can't mount Exchange 2010 mailbox datastore, Active Directory operation failed error is not retriable. Directory object not found

Can't mount exchange mailbox databases at all, all MS services for exchange are up and running....

have tried to restart server, restart services and no avail please help thank you..



Cmdlet Name: Mount-Database
Object Modified: Others & Misc
Parameter: Identity = Others & Misc

Succeeded: False
Error: Microsoft.Exchange.Data.Directory.ADOperationException: Active Directory operation failed on EMEPSINFADC01.HQ.LOCAL. This error is not retriable. Additional information: Directory object not found.\r\nActive directory response: 0000208D: NameErr: DSID-031001E4, problem 2001 (NO_OBJECT), data 0, best match of:\n\t\'DC=HQ,DC=LOCAL\'\n ---> System.DirectoryServices.Protocols.DirectoryOperationException: The object does not exist.\r\n   at System.DirectoryServices.Protocols.LdapConnection.ConstructResponse(Int32 messageId, LdapOperation operation, ResultAll resultType, TimeSpan requestTimeOut, Boolean exceptionOnTimeOut)\r\n   at System.DirectoryServices.Protocols.LdapConnection.SendRequest(DirectoryRequest request, TimeSpan requestTimeout)\r\n   at Microsoft.Exchange.Data.Directory.PooledLdapConnection.SendRequest(DirectoryRequest request, LdapOperation ldapOperation, IAccountingObject budget, Nullable`1 clientSideSearchTimeout)\r\n   at Microsoft.Exchange.Data.Directory.ADSession.ExecuteModificationRequest(ADObject entry, DirectoryRequest request, ADObjectId originalId, Boolean emptyObjectSessionOnException)\r\n   --- End of inner exception stack trace ---\r\n   at Microsoft.Exchange.Data.Directory.ADSession.AnalyzeDirectoryError(PooledLdapConnection connection, DirectoryRequest request, DirectoryException de, Int32 totalRetries, Int32 retriesOnServer)\r\n   at Microsoft.Exchange.Data.Directory.ADSession.ExecuteModificationRequest(ADObject entry, DirectoryRequest request, ADObjectId originalId, Boolean emptyObjectSessionOnException)\r\n   at Microsoft.Exchange.Data.Directory.ADSession.Save(ADObject instanceToSave, IEnumerable`1 properties)\r\n   at Microsoft.Exchange.Management.SystemConfigurationTasks.NewMailboxDatabase.SaveSystemMailbox(MailboxDatabase mdb, Server owningServer, ADObjectId rootOrgContainerId, ADSystemConfigurationSession configSession, ADRecipientSession recipientSession, ADObjectId[] forcedReplicationSites, TaskWarningLoggingDelegate writeWarning, TaskVerboseLoggingDelegate writeVerbose)\r\n   at Microsoft.Exchange.Management.SystemConfigurationTasks.MountDatabase.InternalProcessRecord()\r\n   at Microsoft.Exchange.Configuration.Tasks.Task.ProcessRecord()
Run Date: 2013-12-24T06:52:05
OriginatingServer: RMMAIL01 (14.03.0123.002)
 
Error:
Exception thrown during AdminLogProvisioningHandler.Validate: Microsoft.Exchange.Data.Storage.ObjectNotFoundException: The discovery mailbox, a hidden default mailbox that is required to search mailboxes, can't be found. It may have been inadvertently deleted. This mailbox must be re-created before you can search mailboxes.
   at Microsoft.Exchange.Data.Storage.Infoworker.MailboxSearch.MailboxDataProvider.GetDiscoveryMailbox(ADRecipientSession session)
   at Microsoft.Exchange.Management.SystemConfigurationTasks.AdminAuditLogHelper.CheckArbitrationMailboxStatus(OrganizationId organizationId, ADUser& user, ExchangePrincipal& principal, String& errorMessage)
kpxcoolxAsked:
Who is Participating?
 
kpxcoolxAuthor Commented:
this will solve the issue?
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Pavel NagaevLead email system administratorCommented:
I don't know but what we exactly know

"Microsoft.Exchange.Data.Storage.ObjectNotFoundException: The discovery mailbox, a hidden default mailbox that is required to search mailboxes, can't be found. It may have been inadvertently deleted. This mailbox must be re-created before you can search mailboxes."

Just try.
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Md. MojahidCommented:
Many region could be to this issue so you have first of check your hardware utilization/database size and free drive space  and also check your event log.
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kpxcoolxAuthor Commented:
--------------------------------------------------------
Microsoft Exchange Error
--------------------------------------------------------
Failed to mount database 'Executive & Information Technology'.

Executive & Information Technology
Failed
Error:
Active Directory operation failed on EMEPSINFADC01.HQ.LOCAL. This error is not retriable. Additional information: Directory object not found.
Active directory response: 0000208D: NameErr: DSID-031001E4, problem 2001 (NO_OBJECT), data 0, best match of:
      'DC=HQ,DC=LOCAL'


The object does not exist.




--------------------------------------------------------
OK
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kpxcoolxAuthor Commented:
yes i saw this and tried it still to no avail
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Pavel NagaevLead email system administratorCommented:
Try to play with dcdiag. Is everything OK with AD?
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kpxcoolxAuthor Commented:
Performing initial setup:
   Trying to find home server...
   ***Error: RMMAIL01 is not a Directory Server.  Must specify /s:<Directory
   Server> or  /n:<Naming Context> or nothing to use the local machine.
   ERROR: Could not find home server.
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Pavel NagaevLead email system administratorCommented:
Must specify /s:<Directory   Server>
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kpxcoolxAuthor Commented:
Directory Server Diagnosis

Performing initial setup:
   * Identified AD Forest.
   Done gathering initial info.

Doing initial required tests

   Testing server: EastMeadow\RMDC01
      Starting test: Connectivity
         ......................... RMDC01 passed test Connectivity

Doing primary tests

   Testing server: EastMeadow\RMDC01

      Starting test: DNS

         DNS Tests are running and not hung. Please wait a few minutes...
         ......................... RMDC01 passed test DNS

   Running partition tests on : DomainDnsZones

   Running partition tests on : ForestDnsZones

   Running partition tests on : Schema

   Running partition tests on : Configuration

   Running partition tests on : HQ

   Running enterprise tests on : HQ.LOCAL
      Starting test: DNS
         ......................... HQ.LOCAL passed test DNS
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Mohammed HamadaSenior IT ConsultantCommented:
You may have a DNS issue, can you check your dns settings? your primary DNS should point to your internal DNS to resolve correctly.
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kpxcoolxAuthor Commented:
the static ip settings  for ipv4 are set to our internal dc's
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Mohammed HamadaSenior IT ConsultantCommented:
I think your problem is a connection issue, it seems from the logs that the server is not able to connect to the LDAP.

Try to check if there's any connection issue, check if there's any firewall blocking the connection between ur AD and the server.

If none works, then I'd suggest that you restart your DC.
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kpxcoolxAuthor Commented:
restarted dc's but i don't think its a connection issue i can bring up active directory users and computers on the exchange box
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Gareth GudgerCommented:
Can you ping the DC from the Exchange box by IP and host name?

Can you perform various DNS resolution tasks with NSLOOKUP?

This error almost sounds like the database information no longer exists in Active Directory........
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Mohammed HamadaSenior IT ConsultantCommented:
Can you telnet active directory on port 389 from Exchange ? I'm not sure to be honest if Exchange uses the SSL port or the normal port. SSL port is 636 for ldap. try that too.
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