Case Study - Fixed Exchange Server Mailbox Corruption

Kernel Data Recovery Fixed Exchange Server Mailbox Corruption Issue
Capital Network Solutions Facilitating widerange of network services
Capital Network Solutions Industry: IT Location: South Wales

Capital Network Solutions (CNS) is a South Wales-based an IT solutions Service Provider with over 18 years of experience in facilitating widerange of network services to its customers. Everything was going smooth, until CNS faced corruption issues in Exchange Server mailbox that caused barriers in accessing company’s crucial emails

Subject

While transitioning the mailboxes of MS Exchange Server 2007 SP2 to Exchange Sever 2010 SP1 (DAG), the client faced too many email corruption issues in mailbox store. This issue restricted the client in moving complete mailbox data from older to newer version. More specifically, the client had encountered this ERROR message:
“This mailbox exceeded the maximum number of corrupted items that were specified for this move request”.

Even after trying manual method, like repairing the mailbox by exporting PST files; the client found out no satisfactory progress.

Cause

When Kernel Data Recovery team analyzed the client’s problem, the experts concluded that whenever the mailbox of Exchange Server 2010 Replication Service was tried to upgrade – the corrupted piece of mailbox data (email, attachment, contact item etc.) eventually skipped the mailbox during the transitioning process. This issue created mailbox store corruption and resulted in the loss of data.

Solution

After evaluating the client’s problem, it was the time to implement measurable steps to fix up the corrupt mailbox store issues. During inspection, it was found that the client has already tried to resolve the issue by expanding the maximum amount of Bad Item Limit to 100. The following command was run in the Exchange Powershell Sever, by the client:
Get-MoveRequest | where {$_.Status -eq "Failed"} | Set-MoveRequest - BadItemLimit 100 –AcceptLargeDataLoss

Thereafter, the following command was run to resume the migration request:
Get-MoveRequest | where {$_.Status -eq "Failed"} | ResumeMoveRequest

Kernel Data Recovery team observed that although, the client had been able to move few mailboxes to show more...

Outcome

Capital Network Solutions was finally able to perform smooth transition of complete mailbox data from older Exchange version to newer one without any hindrance. The corruption of mailbox store had not been possible, if it was dealt unprofessionally. The total recovery time was beyond client’s anticipation and outcome received was highly appreciated by the client.

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