Questions tagged [vss]

Volume Shadow Copy Service

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VSS limit not working as expected

I have two servers: a 2012R2 and a 2016. I have a data folder mirrored with DFS. I've configured VSS on the drive that contains the folder on both servers. But Windows is not obeying the VSS limits I'...
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Use RAM drive for VSS?

Anyone tried, on Windows Server, 'vssadmin add shadowstorage' for a volume using a RAM drive, on a server with lots of RAM? Would it contribute to instability somehow? Should enable a nice jolt of ...
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Can Volume Shadow Copy Service (VSS) expose a volume to a Failover Cluster disk?

I am running a Windows Server 2012 R2 failover cluster environment for development, to mirror our production cluster, and I have VSS able to expose to a drive, mount point or share local to the ...
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How to prevent System Volume Information from filling up with orphan shadows?

On many Windows systems, clients and servers, including 2016, 2019, and many builds of 10, we are seeing System Volume Information fill up, sometimes with hundreds of gigabytes of orphan shadows. On ...
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Throttle Windows to match local storage, to prevent SVI buildup?

I'm seeing a rather large number of machines lately with System Volume Information folders ranging from large (50G) to huge (350G), on both desktops (Windows 10, various builds) and servers (2012R2, ...
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Two Way Volume Shadow Copy Service

Can one use Windows Server VSS in a two-way configuration? VSS from Volume A to Volume B is a "normal" mode of operation. But, can one do, at the same time, VSS from Volume B to Volume A? ...
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Data Loss Event ID 25 "The shadow copies on Volume E: were deleted because shadow copy storage could not grow in time."

I am experiencing loss of shadow copies, and this is accompanied by eventId 25: Log Name: System Source: Volsnap Date: 8/27/2020 6:41:11 PM Event ID: 25 Task Category: None ...
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VSS backup acess is denied WinServ2016

On my windows server 2016 I userd disk2vhd for backups, but for some reason last backups that disk2vhd created in last time was invalid. Disks works ok and whole system too. So I want to make backups ...
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Windows 2016 VSS - Can 2 Volumes share same physical disk 'storage area'

I have a 2016 server with 2 volumes C and M and would like to set up VSS to a SEPARATE dedicated disk. Is it possible to point both volumes (C & M) VSS configurations to use this SAME dedicated ...
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Windows Server 2016 VSS System Requirements - Additional Disk?

I have a Windows 2016 server I'd like to set up Volume Shadow Service (VSS). Is it still recommended that I have a separate physical disk? The setup dialog itself seems to state this as you see in ...
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Google Cloud Platform, taking snapshot of SQL server concerns

I would like to take a snapshot of my SQL server that is running in GCP prior to applying patches. What is the suggested safe way of doing so? Coming from VMware world, I always omitted memory from ...
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Why is VSS creating failed logon events (Event ID 4625) when Azure AD Connect is installed?

We have a customer with a Windows Server 2016 domain controller. It's a small business so their server infrastructure consists of a Hyper-V host and this DC. The DC hosts file shares and Azure AD ...
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Multicast UDP traffic flow in the distribution layer using VSS

We have a campus with 2 different building with few floors on each building and 100's of systems in different VLANS at each floor. At the Access layer we have Layer 2 switches at each floor connecting ...
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Windows Backup / wbadmin errors | Source: SPP | Event id: 16389 | Increase SPP CreateTimeout?

After a reboot we encounter while the first backup (wbadmin) on a Windows Server 2016 these errors in the eventlog: Source: SPP Event ID 16389 Details: The writer's timeout expired between the ...
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windows volume shadow copy recover entire volume

For those that don't want the long story, I'll start with my questions: Has anyone done a VSS entire volume revert of a large volume (over 8TB) before? And if so, how long should I expect it to take?...
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Where does DPM use space on a protected SQL Server?

I'm using Microsoft System Center Data Protection Manager 2016 to protect SQL Server 2017 on Windows Server 2016. I believe that whenever DPM does a backup (synchronization or express full) it will ...
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Is it safe to restart a database as soon as VSS backup begins?

I know that VSS is designed to create a snapshot of the state of the entire system as soon as you call begin backup, and hold on to it until the backup is ended (or the disk runs out of space). Does ...
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Windows Server 2012 BSOD after VSS Shadow Copies

After the recent installation of the following KB's: KB4103730, KB4096416, KB4095872, the server would BSOD once a shadow copy starts. A sfc /scannow finds issues but also states there were some ...
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Diskshadow - Can Begin Backup and End Backup be called in separate scripts?

I've been reading a lot of documentation about Diskshadow on various sites from Microsoft to blog postings and they all recommend to do something like this: # diskshadow script commands set verbose ...
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Hyperv-V creates mystery .avhdx files and fills up disk space

I have windows server 2016. Also i have Hyper-V role on my server. Every day in 5:36 i have error, that disk full and my virtual machine is stopping. In Hyper-V logs: ProviderName: Microsoft-...
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VSS event log error every three hours (System.Writer Access denied)

In my event log (Windows Server 2012) I see this error every three hours, going back a very long time: Volume Shadow Copy Service error: Unexpected error querying for the IVssWriterCallback ...
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Reliable way to see all available Shadow copies as an administrator?

I'm having a lot of trouble understanding on what conditions a user will be able to restore files from a ShadowCopy. Here is a brief description of the context of the issue: Windows Server 2012 R2 ...
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Backing up RavenDB - is it safe to backup data directory without VSS?

The documentation for RavenDB basically indicates there are several ways of backing up your RavenDB database: Using the supplied Raven.Backup.exe tool Initiating an export from the "studio" web ...
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Issue with shadow copies in 2012 R2 file server cluster

I have recently created a 2012 R2 file server cluster, and am trying to enable shadow copies. When I right click the drive containing user data within the failover cluster manager, and click ...
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Google Compute Engine VSS snapshot VM requirements

I am unable to find the proper documentation on what I need to activate on the windows VM to make sure my gce snapshots are indeed using VSS. Creating a snapshot with VSS enabled in pretty ...
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VSS writer NTDS State 11 failed and other writers state 5

We use Altaro VMBackup V7.0.20.3 to back up some VMs hosted on a single Hyper-V Host running Windows Server 2012 R2. One of the VMs running Windows Server 2008 gets the following error after the ...
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How to name a Windows/NTFS VSS?

Is there a way to give a name to VSS (Volume SnapShot) into Windows? The defaut name is like @GMT-2017.02.12-15.52.45. I would like to give a specific name to some of them. Or at least to set some ...
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ADAM (MSExchange) VSS Writer - Non-retryable error (when backing up with DPM, or makinng Hyperv checkpoint)

I have Exchange EDGE ROLE installed as VM on Hyper-v (Win 2016 std). When DPM 2016 tries to backup that VM I have an error that it is failing, I tracked the problem to inability to make VSS snapshot ...
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1 answer
882 views

VSS snapshots on SMB3 share are "orphaned" and cannot be deleted

"Screenshots in EMC and Windows GUIs" Server 2012 R2 cluster. Storage for cluster is EMC VNXe 3200 (SMB3 shares, not ISCSI). Veeam used for backups. There are VSS snapshots on the EMC that were ...
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VSS - The semaphore timeout period has expired

On a Server 2016 box Windows Backup fails with The backup operation that started at '‎2016‎-‎12‎-‎23T02:00:13.001000000Z' has failed because the Volume Shadow Copy Service operation to create a ...
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3 votes
2 answers
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VSS management on Windows

I often use the integrated VSS feature on Windows files servers, to allow users to restore themselve some files. This also allow IT team to do the job fast when few files are involved, which is the ...
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Server 2012 R2 VSS freezing and causing DFSR and Win Backups to fail

Symptom is that approx once a week DFSR (Distributed File System Replication) stops replicating and Windows Backup (wbengine.exe) stops responding. When I analyse their wait chains they're waiting on ...
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cisco 3850 in separate wiring closets - VSS?

I have two new 3850 24 port gig switches. I am putting one in the front wiring closet of our warehouse, the other in the rear. IS there a way to have these be a layer 2 / layer 3 Virtual Switch using ...
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3 answers
1k views

AWS Windows SQL EC2/EBS application consistent snapshot

Has anyone found a way to take a EBS snapshot for a Windows Server that maintains Application Consistency? In my case it's with SQL and I'd like to maintain SQL app consistency. Either via quiescing ...
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restoring files with VShadows does not work

I've been developing a vss-writer based on this microsoft sample. At the beginning I was using BETest.exe to test my app > betest.exe /B /S backup.xml /D C:\BackupDestination /X BetestSample.xml &...
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1 vote
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WS2012, VSS Backup errors

I have few problems with VSS Full Backup on WS 2012 R2. I have 3 physical servers with few VM's on each. I'm doing Full Backup everyday via Windows Server backup. On each server I have different ...
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VSS-like feature for SMB file shares in Samba4

In Samba4, is there any feature like VSS for SMB file shares in Windows Server? I see that the Previous Version tab exists under Properties in the context menu on the client side, but I don't know ...
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3 votes
1 answer
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Windows 7: Access rights/group policy to prevent shadow copies from being deleted by user?

Is there a way to prevent shadow copies to be deleted by non-admin-users? The only thing I found right now were group policies which hide the tab in Windows explorer from the user (so that he can't ...
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1 answer
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Veeam Backup failing. Cannot create a shadow copy of the volumes containing writers data

We have a Windows Server 2003 R2 SP2 VMWare VM that is failing Veeam backups with the following error: Failed to prepare guest for hot backup. Error: VSSControl: 1 Backup job failed. Cannot create a ...
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Disabling shadow copies on a NFS share folder

I want to disable shadow copies being created on a specific Windows NFS share folder which is being used by an ESXi 6 server for virtual machine backups (via xsibackup). The reason for wanting to do ...
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VSS Unexpected error querying for the IVssWriterCallback—Access Denied

I'm having trouble with VSS based backups of my Exchange server. I'm getting the following error on the start of the backup: Volume Shadow Copy Service error: Unexpected error querying for the ...
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7 votes
6 answers
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How to fix system state backup error and NTDS VSS (error: 0x800423f4) state [11]?

The SBS 2011 (Exchange is at SP1) Windows 2008 R2 suddenly stopped making backups with error Backup unsuccessful. A Volume Shadow Copy Service operation failed. Unknown error (0x800423f4). When ...
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2 votes
3 answers
2k views

Missing Exchange Writer + Missing System Writer + Specific services crashing regulary + Hyper-V VM

I have some strange errors on multiple Server 2012 R2 Virtual Machines (Hyper-V hosts). Missing VSS writers on startup: System Writer and Exchange Writer. I have scoured the net for possible ...
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Pause the Windows Task Scheduler

Is there a way to temporarily pause the Windows Task Scheduler so it doesn't launch new scheduled tasks in the middle of a critical operation? I have a PowerShell script that syncs an HA server to an ...
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3 votes
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SQL Server VSS writer interfering with VMWare snapshots

After changing to TSM for the VMWare backups, we've started experiencing an odd issue with our Snapshot backups. We take system drive snapshots as a backup solution for the machine states. All the ...
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Duplicate Disks Showing in "My PC" Server 2012 R2

I've got a Server 2012 R2 VM running as an SMB file host (VHDx on Host side.) Recently, I noticed that both the system disk and the data disk have duplicates showing in "My PC": I: is a clone of C:, ...
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Windows Server Backup is doing incremental instead of full backup of Exchange data

I am backing up an Exchange Server database to a backup volume on Windows Server 2012 R2, using Windows Server Backup. I mostly followed the tutorial shown at http://exchangeserverpro.com/backup-...
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1 answer
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Cisco VSS failure.

We have two 6500s running with VSS. We have a switch with dual uplinks. Each uplink goes to a different 6500. If the VSL between the 6500s goes down then they both become active. This breaks the ...
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1 vote
1 answer
202 views

How to determine the appropriate VSS hotfixes/updates to apply to a Windows 2003 server?

Yes...I know...Windows 2003 has already EOL'd now. I'm dealing with a remaining one in a large environment and have some issues that I believe are related to VSS according to a KB hotfix article. ...
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3 votes
1 answer
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Veeam Hyper-V backup error: Microsoft Hyper-V VSS Writer VSS_WS_FAILED_AT_POST_SNAPSHOT

I have an error from a Veeam Hyper-V backup of a Virtual Machine in a Hyper-V host: Unable to create snapshot (Microsoft CSV Shadow Copy Provider) (mode: Veeam application-aware processing). Details: ...
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