Hello,
I would like to solve our issue which bothers us for a few months now. We have advanced server infrastructure. These issues happens on completely different configurations/ brands of servers. One is HP microsver GEN8 with Samsung 840 pro as system disk and 4x raid 10 with WD raptor, b120i controller, which is used as domain controller. The other one is HP ML10v2 with Samsung 850 evo SSD disk B120i controller, and the last one is IBM x3650 m2 with 8x 15Krpm sas drives and MR10i MEGARAID controller, these both servers are in WORKGROUP, out of domain.
All servers are backed up via DPM server, which is running virtualized on third X3650 M2. DPM virtual server, nor hyperv X3650 server (and another 6 virtual servers) HAVE NO PROBLEMS AT ALL with backup. Also we backup via vssadmin script running early in the morning on WDmycloud device.
The issue is simple - vss is going to hang. It happens in one day or 2-4 days sporadically. First We can detect it via DPM system center not able to create recovery points. Then I open cmd "vssadmin list providers" and it correctly lists providers Immediately after I run vssadmin list volumes and service hangs forever at :
C:\Windows\system32>vssadmin list providers
vssadmin 1.1 - Volume Shadow Copy Service administrative command-line tool
(C) Copyright 2001-2013 Microsoft Corp.
Then if I try to open: windows server backup, Shadow volume configuration (after opening error 0x80080005: server execution failed), dpm backups, vssadmin just wont work.
I tried following:
restart VSS - service will hang at stopping state. After force closing service via "taskkill /f /pid" it will automatically restart, but still not working
restart VSS and associated services with reregistering writers via this script - http://serverfault.com/questions/435319/server-2008-sp1-vss-writers-not-responding - wont work - VSS service will not stop, nor swprv (microsoft software shadow copy provider) - cannot stop service
force killing swprv service with taskill - first I find service with sc queryex swprvm then taskkill /f /pid. THen taskkil reports - There is no running instance of the task.
Tried tips in this thread - https://social.technet.microsoft.com/Forums/windows/en-US/f7bef308-6e84-485e-ac19-6231e2f89e08/windows-server-2008-r2-vss-errors?forum=windowsbackup - not working. Disabling SQL writer wont help.
Also tried list writers with DISKSHADOW - it hangs same way
The only solution which helps is - reboot the server. But I don't think its solution. I cannot reboot servers during work hours.
After reboot, vssadmin list providers / volumes / shadows works flawlessly until next hang.
Any solutions ?
Kamil Ondrus
