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Errors Importing PST files into Exchange 2010

I have circa 200 PST files that I am trying to import to an Exchange 2010 server. I am receiving a lot of "Couldn't connect to the target mailbox" errors both when i create the Import Requests and when I try to resume failed ones. When i was creating the requests I would start getting the error, then wait a few minutes and try again, in which case things would work for a little bit, then i would get the error again. It looks as if there is a limit how many requests i can have so the few first ones run, then the subsequent ones fail. We are not having a CAS Array, this is a single-server installation. Any ideas? I include the exact error below. Thanks!

Couldn't connect to the target mailbox.
+ CategoryInfo : NotSpecified: (60:Int32) [Resume-MailboxImportRequest], RemotePermanentException
+ FullyQualifiedErrorId : 86B989C,Microsoft.Exchange.Management.RecipientTasks.ResumeMailboxImportRequest

James Haywood

Have you tried the PST import tool from Microsoft?

http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=28767

criskrit

ASKER

The problem seems related to a limit of maximum simultaneous Import Requests. Is there a way to specify/change this? Also is it possible to specify limits for Active and Queued Import Requests? I wouldn't want to have too many Active requests (too much load on the server) but i would like to be able to Queue all 200+ Import Requests so that i don't have to check back every few minutes. thanks!

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James Haywood

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criskrit

ASKER

unfortunately i have already done this and it doesn't seem to work. I have setup 50 active requests but the server will not accept more than 20. Also this still doesn't queue the non-active ones... :-(
Any (other) ideas?

James Haywood

What settings have you tried with this file?

criskrit

ASKER

here is the full thing:

<MRSConfiguration
MaxRetries = "60"
MaxCleanupRetries = "5"
MaxStallRetryPeriod = "00:15:00"
RetryDelay = "00:00:30"
MaxMoveHistoryLength = "100"
MaxActiveMovesPerSourceMDB = "50"
MaxActiveMovesPerTargetMDB = "50"
MaxActiveMovesPerSourceServer = "50"
MaxActiveMovesPerTargetServer = "50"
MaxTotalMovesPerMRS = "500"
FullScanMoveJobsPollingPeriod = "00:10:00"
MinimumTimeBeforePickingJobsFromSameDatabase = "00:00:04"
ServerCountsNotOlderThan = "00:10:00"
MRSAbandonedMoveJobDetectionTime = "01:00:00"
BackoffIntervalForProxyConnectionLimitReached = "00:30:00"
DataGuaranteeCheckPeriod = "00:00:10"
DataGuaranteeTimeout = "00:30:00"
DataGuaranteeLogRollDelay = "00:01:00"
EnableDataGuaranteeCheck = "true"
DisableMrsProxyCompression = "false"
DisableMrsProxyBuffering = "false"
MinBatchSize = "100"
MinBatchSizeKB = "256" />

James Haywood

Can you show the command/script you are using? thanks

criskrit

ASKER

I am grouping PST by first initial, so the following repeats for all letters of the alphabet:

Dir \\mailseiu1\OST-to-PST\PSTs\import_pending\a*.pst | %{ New-MailboxImportRequest -Name PSTimport_A -BatchName ImportPstFiles -BadItemLimit 50 -Mailbox $_.BaseName -FilePath $_.FullName}

criskrit

ASKER

any more suggestions on this?

James Haywood

Sorry I've been waiting for an Exchange Admin friend to get back to me. The only other suggestion is to run the imports in batches of 10

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criskrit

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criskrit

ASKER

The Expert's comment is in the right direction but doesn't really resolve the issue as this seems like a glitch in the Exchange configuration as mentioned in my last comment along with the workaround i used.