Windows Server Backup Error

Question

Hello everyone, I've got problem with VSS in windows server 2016, when I make a backup for C drive, in event viewer throwed some errors, detail below:

Ran out of time while deleting files.

Operation:

OnPostSnapshot event

PostSnapshot Event

Context:

Execution Context: Shadow Copy Optimization Writer

Execution Context: Writer

Writer Class Id: {4dc3bdd4-ab48-4d07-adb0-3bee2926fd7f}

Writer Name: Shadow Copy Optimization Writer

Writer Instance ID: {9f382d74-33f2-4571-8e8f-a0c25b19e75f}

The backup operation that started at '‎2024‎-‎01‎-‎31T04:49:52.520469800Z' has failed to back up volume(s) 'C:'. Please review the event details for a solution, and then rerun the backup operation once the issue is resolved.

I tried to make a backup the another drives, it's no problem, It's only error with C drive. What should I do now? Please help me

Answer 1

Hi Nguyen,

I am facing one similar issue with VSS while taking a component based snapshot backup. Can you please help how to resolve this problem?

Answer 2

Hi Nguyen,

Hope you're doing well.

1. Try to restart VSS service and then try to backup again.
2. Ensure that there is enough free disk space on the volume being backed up (C: drive). Running out of disk space can cause VSS failures.
3. If you have third-party backup or security software installed, ensure that it is compatible with Windows Server 2016 and that it is not conflicting with the VSS operation.

Best Regards.

Answer 3

Firstly, thank you for your support and give you result of commands

C:\Users\Administrator>fltmc

Filter Name Num Instances Altitude Frame

---

FsDepends 7 407000 0

KLIF.KES-21-9 7 320400.1673531274 0

storqosflt 0 244000 0

wcifs 0 189900 0

FileCrypt 0 141100 0

luafv 1 135000 0

klbackupflt.KES-21-9 5 100800.1673531274 0

npsvctrig 1 46000 0

RsFx0410 1 41004.10 0

Wof 1 40700 0

C:\Users\Administrator>vssadmin list writers

vssadmin 1.1 - Volume Shadow Copy Service administrative command-line tool

(C) Copyright 2001-2013 Microsoft Corp.

Writer name: 'Task Scheduler Writer'

Writer Id: {d61d61c8-d73a-4eee-8cdd-f6f9786b7124}

Writer Instance Id: {1bddd48e-5052-49db-9b07-b96f96727e6b}

State: [1] Stable

Last error: No error

Writer name: 'VSS Metadata Store Writer'

Writer Id: {75dfb225-e2e4-4d39-9ac9-ffaff65ddf06}

Writer Instance Id: {088e7a7d-09a8-4cc6-a609-ad90e75ddc93}

State: [1] Stable

Last error: No error

Writer name: 'Performance Counters Writer'

Writer Id: {0bada1de-01a9-4625-8278-69e735f39dd2}

Writer Instance Id: {f0086dda-9efc-47c5-8eb6-a944c3d09381}

State: [1] Stable

Last error: No error

Writer name: 'System Writer'

Writer Id: {e8132975-6f93-4464-a53e-1050253ae220}

Writer Instance Id: {fede4ccb-8152-4f16-bc9b-217506cd09e0}

State: [1] Stable

Last error: No error

Writer name: 'SqlServerWriter'

Writer Id: {a65faa63-5ea8-4ebc-9dbd-a0c4db26912a}

Writer Instance Id: {c2002e21-3128-4a54-95e7-f4eda901ea27}

State: [1] Stable

Last error: No error

Writer name: 'ASR Writer'

Writer Id: {be000cbe-11fe-4426-9c58-531aa6355fc4}

Writer Instance Id: {a0441c9e-0582-4e9b-a523-c3b6a8df7b26}

State: [1] Stable

Last error: No error

Writer name: 'Shadow Copy Optimization Writer'

Writer Id: {4dc3bdd4-ab48-4d07-adb0-3bee2926fd7f}

Writer Instance Id: {18733ba1-8296-47f1-9df2-3402f65274ec}

State: [1] Stable

Last error: No error

Writer name: 'Registry Writer'

Writer Id: {afbab4a2-367d-4d15-a586-71dbb18f8485}

Writer Instance Id: {9a694935-981b-4818-9174-66059ddd4da5}

State: [1] Stable

Last error: No error

Writer name: 'COM+ REGDB Writer'

Writer Id: {542da469-d3e1-473c-9f4f-7847f01fc64f}

Writer Instance Id: {77d9ac07-ca14-490c-94d0-21fcd73c884c}

State: [1] Stable

Last error: No error

Writer name: 'WMI Writer'

Writer Id: {a6ad56c2-b509-4e6c-bb19-49d8f43532f0}

Writer Instance Id: {0c37ea75-9cc2-4a66-94ab-c3a371b0c3d5}

State: [1] Stable

Last error: No error

C:\Users\Administrator>vssadmin list providers

vssadmin 1.1 - Volume Shadow Copy Service administrative command-line tool

(C) Copyright 2001-2013 Microsoft Corp.

Provider name: 'Microsoft File Share Shadow Copy provider'

Provider type: Fileshare

Provider Id: {89300202-3cec-4981-9171-19f59559e0f2}

Version: 1.0.0.1

Provider name: 'Microsoft Software Shadow Copy provider 1.0'

Provider type: System

Provider Id: {b5946137-7b9f-4925-af80-51abd60b20d5}

Version: 1.0.0.7

Answer 4

Hi Nguyen,

Hope you're doing well.

Please provide us the following information:

Please open cmd and type the following command:

(1) fltmc

(2) vssadmin list writers

(3) vssadmin list providers

Best Regards