error code '0x80780049' There was a failure while compacting the virtual hard disk on the backup location. Detailed error: a device attached to the system is not functioning. (Network Steve Forum)

error code '0x80780049' There was a failure while compacting the virtual hard disk on the backup location. Detailed error: a device attached to the system is not functioning.

Volume backups succeed with 1.13 GiB of data.

However, backups fail on the same volume when I increase the data to 50.2 GiB.

The target volume is a thinly provisioned 1 TiB iSCSI drive that WBAdmin formatted and dedicated entirely for backups. It takes WBAdmin an unusually long time (tens of minutes) to quickly format the drive. Yet data transfers fairly quickly: the 1.13 GiB backup completes in 1 minute.

During backup, WBAdmin snap-in reports transfer complete and compacting begin: compact stays 0% for a minute or so, jumps to 6%, stays for another couple of minutes, fails. I think it's timing out.

I've tried backups with and without deduplication, small (1.13 GiB) or large (96.86 GiB): large backups fail regardless of deduplication, small backups succeed regardless of deduplication. Only size seems to matter.

Backup Source

Physical data: 50.2 GiB (deduplicated)
Logical data: 96.86 GiB
Volume: 256 GiB
File system: NTFS
Allocation unit size: 16 KiB
Storage device: locally attached hard drive

Backup Target

Volume: 1 TiB
File system: NTFS
Allocation unit size: 4 KiB (WBAdmin defaults)
Storage device: thinly provisioned iSCSI

Event Log

Log Name: Microsoft-Windows-Backup

Source: Microsoft-Windows-Backup
Date: 8/29/2015 10:21:35 PM
Event ID: 5
Task Category: None
Level: Error
Keywords:
User: SYSTEM
Computer: ctu-testvm
Description:
The backup operation that started at '2015-08-30T01:00:04.242823700Z' has failed with following error code '0x80780049' (None of the items included in backup were backed up.). Please review the event details for a solution, and then rerun the backup operation once the issue is resolved.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-Backup" Guid="{1DB28F2E-8F80-4027-8C5A-A11F7F10F62D}" />
<EventID>5</EventID>
<Version>3</Version>
<Level>2</Level>
<Task>0</Task>
<Opcode>0</Opcode>
<Keywords>0x4000000000000000</Keywords>
<TimeCreated SystemTime="2015-08-30T02:21:35.117902000Z" />
<EventRecordID>144</EventRecordID>
<Correlation />
<Execution ProcessID="1784" ThreadID="3648" />
<Channel>Microsoft-Windows-Backup</Channel>
<Computer>ctu-testvm</Computer>
<Security UserID="S-1-5-18" />
</System>
<EventData>
<Data Name="BackupTemplateID">{F17F4B95-4214-4706-8D56-0F1BB0F9288F}</Data>
<Data Name="HRESULT">0x80780049</Data>
<Data Name="DetailedHRESULT">0x0</Data>
<Data Name="ErrorMessage">%%2155348041</Data>
<Data Name="BackupState">12</Data>
<Data Name="BackupTime">2015-08-30T01:00:04.242823700Z</Data>
<Data Name="BackupTarget">ctu-tes 2015_08_29 18:25 DISK_01</Data>
<Data Name="NumOfVolumes">1</Data>
<Data Name="VolumesInfo"><VolumeInfo><VolumeInfoItem Name="D:" OriginalAccessPath="D:" State="17" HResult="-2139618991" DetailedHResult="-2147024865" PreviousState="9" IsCritical="0" IsIncremental="0" BlockLevel="1" HasFiles="0" HasSystemState="0" IsCompacted="1" IsPruned="0" IsRecreateVhd="0" FullBackupReason="2" DataTransferred="104003403776" NumUnreadableBytes="0" TotalSize="104003403776" TotalNoOfFiles="0" Flags="8200" BackupTypeDetermined="1" SSBTotalNoOfFiles="0" SSBTotalSizeOnDisk="0" /></VolumeInfo></Data>
<Data Name="SourceSnapStartTime">2015-08-30T01:00:04.242823700Z</Data>
<Data Name="SourceSnapEndTime">2015-08-30T01:00:09.712054300Z</Data>
<Data Name="PrepareBackupStartTime"><TimesList><Time Time="2015-08-30T01:00:10.820Z" /></TimesList></Data>
<Data Name="PrepareBackupEndTime"><TimesList><Time Time="2015-08-30T01:00:10.961Z" /></TimesList></Data>
<Data Name="BackupWriteStartTime"><TimesList><Time Time="2015-08-30T01:00:10.961Z" /></TimesList></Data>
<Data Name="BackupWriteEndTime"><TimesList><Time Time="2015-08-30T02:20:34.289Z" /></TimesList></Data>
<Data Name="TargetSnapStartTime">1601-01-01T00:00:00.000000000Z</Data>
<Data Name="TargetSnapEndTime">1601-01-01T00:00:00.000000000Z</Data>
<Data Name="DVDFormatStartTime"><TimesList></TimesList></Data>
<Data Name="DVDFormatEndTime"><TimesList></TimesList></Data>
<Data Name="MediaVerifyStartTime"><TimesList></TimesList></Data>
<Data Name="MediaVerifyEndTime"><TimesList></TimesList></Data>
<Data Name="BackupPreviousState">17</Data>
<Data Name="ComponentStatus"><ComponentStatus></ComponentStatus></Data>
<Data Name="ComponentInfo"><ComponentInfo></ComponentInfo></Data>
<Data Name="SSBEnumerateStartTime">1601-01-01T00:00:00.000000000Z</Data>
<Data Name="SSBEnumerateEndTime">1601-01-01T00:00:00.000000000Z</Data>
<Data Name="SSBVhdCreationStartTime">1601-01-01T00:00:00.000000000Z</Data>
<Data Name="SSBVhdCreationEndTime">1601-01-01T00:00:00.000000000Z</Data>
<Data Name="SSBBackupStartTime">1601-01-01T00:00:00.000000000Z</Data>
<Data Name="SSBBackupEndTime">1601-01-01T00:00:00.000000000Z</Data>
<Data Name="SystemStateBackup"><SystemState IsPresent="0" HResult="0" DetailedHResult="0" /></Data>
<Data Name="BMR"><BMR IsPresent="0" HResult="0" DetailedHResult="0" /></Data>
<Data Name="VssFullBackup">true</Data>
<Data Name="UserInputBMR">false</Data>
<Data Name="UserInputSSB">false</Data>
<Data Name="BackupSuccessLogPath">C:\Windows\Logs\WindowsServerBackup\Backup-30-08-2015_01-00-04.log</Data>
<Data Name="BackupFailureLogPath">C:\Windows\Logs\WindowsServerBackup\Backup_Error-30-08-2015_01-00-04.log</Data>
<Data Name="EnumerateBackupStartTime"><TimesList><Time Time="1601-01-01T00:00:00.000Z" /></TimesList></Data>
<Data Name="EnumerateBackupEndTime"><TimesList><Time Time="1601-01-01T00:00:00.000Z" /></TimesList></Data>
<Data Name="PruneBackupStartTime"><TimesList><Time Time="1601-01-01T00:00:00.000Z" /></TimesList></Data>
<Data Name="PruneBackupEndTime"><TimesList><Time Time="1601-01-01T00:00:00.000Z" /></TimesList></Data>
<Data Name="BackupFlags">0x8</Data>
<Data Name="ComponentInfoSummary"><ComponentInfoSummary ComponentInfoArrayPresent="1" TotalComponents="0" SucceededComponents="0" /></Data>
</EventData>
</Event>

C:\Windows\Logs\WindowsServerBackup\Backup-30-08-2015_01-00-04.log

Backup of volume D: succeeded.

C:\Windows\Logs\WindowsServerBackup\Backup_Error-30-08-2015_01-00-04.log: blank

Anyone know what's going wrong and what to do?

Edited by Luis Marsano 3 hours 6 minutes ago

August 29th, 2015 11:51pm

This topic is archived. No further replies will be accepted.