arcserve-KB : How to manually restart VSS Writers in a failed state without Rebooting Server.

Last Update: 2017-08-03 18:17:38 UTC


There are instances when snapshots are fail due to an agent's VSS writers being in a failed state but it is impossible or not desirable to restart the server until at least after business hours.


An alternative solution other than restarting the server is to restart  the associated services for each of the VSS writers showing up in a failed state by following the steps below:

  • Find each of the VSS writers in a failed state by using the command in command prompt (Run As Administrator)  - ' vssadmin list writers '.
  • Mark and copy all the failed VSS writers.
  • Find the VSS writer's associated Service Display Name in the table below and restart the service.
  • To confirm the status has changed Stable with no Error - type - vssadmin list writers

  • Run another Backup/snapshot.
  • If the VSS writers fail again, it would be necessary to restart the server.
List Of Writers:

VSS Writer Service Name Service Display Name
ASR Writer VSS Volume Shadow Copy
BITS Writer BITS Background Intelligent Transfer Service
COM+ REGDB Writer VSS Volume Shadow Copy
DFS Replication service writer DFSR DFS Replication
DHCP Jet Writer DHCPServer DHCP Server
FRS Writer NtFrs File Replication
FSRM writer srmsvc File Server Resource Manager
IIS Config Writer AppHostSvc Application Host Helper Service
IIS Metabase Writer IISADMIN IIS Admin Service
Microsoft Exchange Writer MSExchangeIS Microsoft Exchange Information Store
Microsoft Hyper-V VSS Writer vmms Hyper-V Virtual Machine Management
NTDS NTDS Active Directory Domain Services
OSearch VSS Writer OSearch Office SharePoint Server Search
OSearch14 VSS Writer OSearch14 SharePoint Server Search 14
Registry Writer VSS Volume Shadow Copy
Shadow Copy Optimization Writer VSS Volume Shadow Copy
SPSearch VSS Writer SPSearch Windows SharePoint Services Search
SPSearch4 VSS Writer SPSearch4 SharePoint Foundation Search V4
SqlServerWriter SQLWriter SQL Server VSS Writer
System Writer CryptSvc Cryptographic Services
TermServLicensing TermServLicensing Remote Desktop Licensing
WINS Jet Writer WINS Windows Internet Name Service (WINS)
WMI Writer Winmgmt Windows Management Instrumentation

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