When attempting to restore individual items from a Microsoft Exchange backup that used Granular Restore Technology (GRT), the error 0xe000848c may occur

Article:TECH144382  |  Created: 2010-11-17  |  Updated: 2011-08-29  |  Article URL http://www.symantec.com/docs/TECH144382
Article Type
Technical Solution


Subject

Issue



Attempts to restore an individual item from a Microsoft Exchange database backup using the Backup Exec Agent for Exchange with the GRT option enabled may result in a failed job.  This will occur when restoring from either tape media or backup to disk folder media.  The event ID listed in the supplemental materials section below will show up on the Exchange server in the Application Log during the time frame of the restore attempt.

The following Microsoft document explains how to correct the Event ID

http://technet.microsoft.com/en-us/library/aa996193%28EXCHG.80%29.aspx

Another reason that the restore fails with the listed error code is due to slow performance of the Microsoft Exchange database due to fragmentation which can cause a timeout during the restore operation resulting in a failed restore job attempt.  In some cases, placing the Backup Exec Remote Agent for Windows Servers service on the Exchange server will cause the communication during the restore job to slow down which could allow the restore to complete by taking longer for the operation to finish.


Error



0xe000848c - Unable to attach to a resource. Make sure that all selected resources exist and are online, and then try again. If the server or resource no longer exists, remove it from the selection list. Edit the selection list properties, click the View Selection Details tab, and then remove the resource.

For additional information regarding this error refer to link V-79-57344-33932

0xe000848c

Result code in SGMON log : (-536836980)


Solution



The recommended solution to this issue is to do the following

  • Run an offline defragment of the Microsoft Exchange database using ESEUTIL which is a Microsoft utility available on their website
  • Run a defragment of the file system where Microsoft Exchange is installed as well as the database location
  • Update the network card drivers on the server that is hosting Microsoft Exchange as well as the drivers for the network card on the server that hosts Backup Exec

Supplemental Materials

SourceUMI
ValueV-79-57344-33932
Description

Unable to attach to a resource. Make sure that all selected resources exist and are online, and then try again. If the server or resource no longer exists, remove it from the selection list. Edit the selection list properties, click the View Selection Details tab, and then remove the resource.


SourceError Code
Value0xe000848c
Description

Unable to attach to a resource. Make sure that all selected resources exist and are online, and then try again. If the server or resource no longer exists, remove it from the selection list. Edit the selection list properties, click the View Selection Details tab, and then remove the resource.


SourceEvent ID
Value9646
Description

Event Type:

Error

Event ID:

9646

Event Source:

MSExchangeIS

Event Category:

General

Description:

Closing Mapi session "/o=OrganizationName/ou=AdministrativeGroupName/cn=Recipients/cn=UserName" because it exceeded the maximum of 500 objects of type "objtFolder".



Article URL http://www.symantec.com/docs/TECH144382


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