Windows Backup keeps failing (Windows Server 2019)- Error code 0x80780049

[sshabir]

Hi All,

I am having an issuewith Windows Backup when the Host (Windows Server 2019) tries to back up theVirtual Server (WSrv2019) which fails every other day.

It is so frustratingthat even after I run 'vssadmin list writers' command in powershell and thenReset VSS writers but it keeps going back to error state after couple of days.

Help and advice ismuch appreciated. Error is shown below(Server name and Hard disk name changed)

Writer Failures

Writer Id:{66841CD4-6DED-4F4B-8F17-FD23F8DDC3DE}

Instance Id:{633B3679-D071-4861-94F0-AB45207BDA86}

Writer Name:Microsoft Hyper-V VSS Writer

Writer State: 8

Failure Result:800423F4

Application Result:80004005

Application Message:(null)

Component:1C32320B-9A73-4C4E-83D7-2DC88E86D41B

Logical Path: (null)

Component Result: 800423F4

Component Message: (null)

File Spec: D:\Hyper-V\server name\VirtualMachines\\1C32320B-9A73-4C4E-83D7-2DC88E86D41B.vmcx Recursive: 0

File Spec: D:\Hyper-V\server name\VirtualMachines\\1C32320B-9A73-4C4E-83D7-2DC88E86D41B.VMRS Recursive: 0

File Spec: D:\Hyper-V\server name\VirtualMachines\\1C32320B-9A73-4C4E-83D7-2DC88E86D41B.vmgs Recursive: 0

File Spec: D:\Hyper-V\Virtual HardDisks\server name\\server name_APPS.vhdx Recursive: 0

File Spec: D:\Hyper-V\Virtual HardDisks\server name\\HD name.vhdx Recursive: 0

File Spec: D:\Hyper-V\servername\Snapshots\85311DEB-0459-410F-BEB4-420A02679721.VMCX Recursive: 0

File Spec: D:\Hyper-V\servername\Snapshots\85311DEB-0459-410F-BEB4-420A02679721.VMRS Recursive: 0

File Spec: D:\Hyper-V\servername\Snapshots\85311DEB-0459-410F-BEB4-420A02679721.vmgs Recursive: 0

File Spec: D:\Hyper-V\Virtual HardDisks\server name\server name_APPS-AutoRecovery.avhdx Recursive: 0

File Spec: D:\Hyper-V\Virtual HardDisks\server name\HD Name-AutoRecovery.avhdx Recursive: 0

*-----------------------------*

Application backup

Writer Id:{66841CD4-6DED-4F4B-8F17-FD23F8DDC3DE}

Component:1C32320B-9A73-4C4E-83D7-2DC88E86D41B

Caption : Online\ENC-SRV-V01

Logical Path:

Error : 80780175

Error Message : Component was skipped from volume shadow copy.

Detailed Error : 800423F4

Detailed Error Message : The writerexperienced a non-transient error. Ifthe backup process is retried,

the error is likelyto reoccur.

*-----------------------------*

Error from Event Viewer

Log Name: Microsoft-Windows-Backup

Source: Microsoft-Windows-Backup

Date: 07/12/2020 21:02:57

Event ID: 5

Task Category: None

Level: Error

Keywords:

User: SYSTEM

Computer: Computer

Description:

The backup operation that started at'‎2020‎-‎12‎-‎07T21:00:21.767740900Z' has failed with following error code'0x80780049' (None of the items included in backup were backed up.). Pleasereview the event details for a solution, and then rerun the backup operationonce the issue is resolved.

Event Xml:

;

5

3

2

0

0

0x4000000000000000

925

Microsoft-Windows-Backup

Server name

{d798a416-1192-4fc1-9d04-2b5211923271}

0x80780049

0x0

%%2155348041

12

2020-12-07T21:00:21.767740900Z

Server name 2020_02_21 11:08DISK_01

0

2020-12-07T21:00:21.714038700Z

2020-12-07T21:02:50.908243800Z

1601-01-01T00:00:00.000000000Z

1601-01-01T00:00:00.000000000Z

19

1601-01-01T00:00:00.000000000Z

1601-01-01T00:00:00.000000000Z

1601-01-01T00:00:00.000000000Z

1601-01-01T00:00:00.000000000Z

1601-01-01T00:00:00.000000000Z

1601-01-01T00:00:00.000000000Z

false

false

false

C:\Windows\Logs\WindowsServerBackup\Backup-07-12-2020_21-00-21.log

C:\Windows\Logs\WindowsServerBackup\Backup_Error-07-12-2020_21-00-21.log

0xd

The issue is afterresetting the VSS writers they go back to error after couple of days. Theservers seem to have enought disk space.

Many Thanks

 

Shoaib

[Warwick_Tech]

A quick thought - Windows Server Backup doesn't like drives over 15tb (I think, give or take)

 

Are you running it via sheduled task or the gui? is it backing up to an IP or hostname?

[sshabir]

Thanks Warwick_Tech- I am running a schedule task to back up Mon-Fri at 9Pm to an external Western Digital Hard Drive of 10 TB. What do you mean by is it backing up to an IP or hostname? I believe hostname as i can see the Virtual server name in the back up error logs

[Warwick_Tech]

Thanks Warwick_Tech- I am running a schedule task to back up Mon-Fri at 9Pm to an external Western Digital Hard Drive of 10 TB. What do you mean by is it backing up to an IP or hostname? I believe hostname as i can see the Virtual server name in the back up error logs

 

Ah, if it's directly attached then it will be a drive letter - I thought if it was hostname try changing it to IP but that won't work here

 

the code I use is as follows:

 

START BACKUP -backuptarget:\\server\folder\folder -include:c:,d: -allcritical -vssfull -quiet

 

^ C: is the windows partition, D: is all my VHD files

-allcritical covers everything and -vssfull covers the VM's

 

So yours would need to be something like;

 

START BACKUP -backuptarget:D:\folder\folder -include:c:,d: -allcritical -vssfull -quiet

[sshabir]

Sorry i don't understand. Do i need to create a Scheduled task where i already have one running at 9 Pm Mon-Fri.

 

Where do i use this?

 

START BACKUP -backuptarget:\folder\folder -include:c:,d: -allcritical -vssfull -quiet

[Warwick_Tech]

Sorry i don't understand. Do i need to create a Scheduled task where i already have one running at 9 Pm Mon-Fri.

 

Where do i use this?

 

START BACKUP -backuptarget:\folder\folder -include:c:,d: -allcritical -vssfull -quiet

 

How are you running the backups at the moment?

[sshabir]

I am using Windows Server backup to back up the VM to a external hard drive (2 TB)

[Warwick_Tech]

I am using Windows Server backup to back up the VM to a external hard drive (2 TB)

 

Ok, try it with a command line or scheduled task instead;

https://www.ubackup.com/windows-server/windows-server-backup-once-a-week-6988.html

 

But add -vssfull to the command line options

[sshabir]

Thanks for the info Warwick_Tech. My confusion is that i do have a 'Scheduled Task' in the 'Task Scheduler' under-

 

Task Scheduler Library\Microsoft\Windows\Backup

 

Please see the pictures attached.

 

Regards

 

Shoaib

[sshabir]

One thing i did notice in my 'Schedule Task' in 'Windows Server Backup' that it had 'VSS copy Backup' selected instead of the one you mentioned 'VSS full backup' which i have changed. I ran a manual backup again with all Errors reset on 'VSS writers' but it still failed. I will wait for the scheduled task to run tonight to see if that helps.

[sshabir]

I resolved the issue by ditching Windows Server backup and using Veeam Backup and replication. I also changed the “Checkpoint” setting under Vm settings from “Standard checkpoint” to production checkpoint.

 

The tool which really helped me is “Acronis Vss doctor” which is a free tool and helps you to troubleshoot the issue more easily.

 

Thank you all for your help esp Baugaudin (Acronis) from Spiceworks.

[TwistedHelixis]

I know you have now switched things to a different backup, but just in case someone else reads this, some server management software hook into VSS, this can cause Windows backup to bork.

[sshabir]

The server was also backing up to the cloud using Redstor online backup. I am not sure if that was causing any issues as most of the time Redstor back up also failed. Since I have changed the check point setting I have not had any issues.

[Jcx500]

The server was also backing up to the cloud using Redstor online backup. I am not sure if that was causing any issues as most of the time Redstor back up also failed. Since I have changed the check point setting I have not had any issues.

 

It shouldn’t do, we use redstor and windows backup on a few vms