NetVault Server 8.6.1 on Windows 2008 64Bit
NetVault Client 8.6.1 Windows 2008 R2 64Bit
Exchange Plugin 4.5.17
Exchange Server 2010
Restore of an Exchange backup from Jan 2009 to an Exchange Client (which is a different machine to where the backup came from) fails.
We made sure that the Media List showed all media had been scanned in and online, then selected the Saveset to restore and gave the path to restore the edb file in the Restore Options (Copy Files to Target Directory Only). Lastly we selected the Exchange Client.
The restore Job failed with the following error:
Error 2013/02/27 12:56:12 306 Jobs NV01 Job manager lost message channel unexpectedly
From the NetVault Server Job Manager Trace (nvjobmgr5972):
2 JOBMGR ??? 7128 133 0 125612654519 Send progress plugin screen updates to 1 connected GUIs
2 JOBMGR ??? 7128 100 0 125612704524 Report job status 'Scanning the index file' to schedule manager
2 JOBMGR ??? 7128 62 0 125612704524 Plugin is now in state Scanning the index file
2 MESSAGE ??? 7128 1010 0 125612754528 Destination (null):3
2 MESSAGE ??? 7128 1011 0 125612754528 Source (null):3
0 JOBMGR ??? 7128 447 0 125612764528 Plugin lost message channel unexpectedly
The NetVault Client Exchange Plugin Trace (nvexchange_progress_10744) progress shows many of these:
2 PLGLIB ??? 10744 808 0 125611896869 Plugin screen max item id exceeded
The NetVault Client Exchange Plugin restore Trace (nvexchange_restore_5456) shows:
2 EXCHBACK ??? 5456 1170 0 125611928069 Local stream id '1', Global id '0302810af9685549f30e0000a017000001000000'
2 EXCHBACK ??? 5456 1171 0 125611928069 Stream size '-2004330496'
2 EXCHUTIL ??? 5456 699 0 125611928069 Method TestStreams: ends, success = TRUE
2 EXCHUTIL ??? 5456 699 0 125611928069 Method TestBackupRecord: ends, success = TRUE
2 EXCHBACK ??? 5456 1087 0 125612489698 Got the segment list
2 EXCHBACK ??? 5456 1089 0 125612489698 Total offset is 0
2 EXCHUTIL ??? 5456 700 0 125612489698 Method ValidateIncrementalJob: starts
2 EXCHREST ??? 5456 1004 0 125612505300 Got the backup record for the backup job of this restore
2 EXCHREST ??? 5456 1005 0 125612505300 The backup set name is ExchangeData
2 EXCHREST ??? 5456 1016 0 125612505300 This job is a restore of an earlier full or copy backup job
2 EXCHUTIL ??? 5456 699 0 125612505300 Method ValidateIncrementalJob: ends, success = TRUE
0 FILESYS ??? 5456 52 0 125612520900 Cannot close a NULL file
2 EXCHREST ??? 5456 1192 0 125612723710 Got Backup Id (1243136)
2 EXCHREST ??? 5456 1231 0 125612723710 Start reading entries from index file
2 EXCHREST ??? 5456 1232 0 125612723710 Got server node entry 'EX01' in index
2 EXCHREST ??? 5456 1194 0 125612723710 Backup Server name is 'EX01', Current Exchange Server 'EX02'
0 EXCHREST ??? 5456 1201 0 125612723710 Unknown node type in index
0 EXCHREST ??? 5456 1201 0 125612723710 Unknown node type in index
2 EXCHUTIL ??? 5456 700 0 125612723710 Method AsciiToUnicode: starts
2 EXCHUTIL ??? 5456 639 0 125612723710 AsciiToUnicode: retval='1. Mailbox Store (EX01)'
Unfortunately the Exchange Plugin is not backward compatible to version 3.1.8 of the Exchange Plugin and you will have to use Exchange Plugin 3.1.8 version in the following way as a workaround:
1] Remove the existing Exchange 4.5.17 Plugin (NetVault Client Management - Right click and select the Exchange Client and select Remove Software - Select the current Exchange Plugin and click on Remove).
2] Restart the NetVault Services on the Exchange Client (NetVault Client Configurator - Services tab).
3] Install the 3.1.8.17 Exchange Plugin (NetVault Client Management - Right click and select the Exchange Client and select Install Software - Point to where you have saved the 3.1.8 Exchange Plugin and install it).
4] Restart the NetVault Services on the Exchange Client and you should be able to successfully drill down the Exchange Server in the Backup window.
Once you have successfully restored the data, make sure you remove the old Exchange Plugin and reinstall the newer version of the Exchange Plugin, so that your existing backups work again.
