Hello,
We have Windows client that is constantly getting the dreaded 156 error when I click on the details I see these type errors.
WRN – Snapshot Error while opening directory: GLOBALROOT\Device\HarddiskVolumeShadowCopy34\Program Files\Common File\System
WRN -Snapshot Error while opening directory: GLOBALROOT\Device\HarddiskVolumeShadowCopy42\Program Files\Common File\System
I checked the vssadmin list writers and they look ok. I check the viewer logs and I see nothing to indicate it’s a shadow copy issue
C:\>vssadmin list writers
vssadmin 1.1 - Volume Shadow Copy Service administrative command-line tool
(C) Copyright 2001-2005 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: {4d51c367-77d7-418c-adf6-256aac9c25a3}
State: [1] Stable
Last error: No error
Writer name: 'ASR Writer'
Writer Id: {be000cbe-11fe-4426-9c58-531aa6355fc4}
Writer Instance Id: {62430e04-d624-40c6-bc5a-2826aed1f08d}
State: [1] Stable
Last error: No error
Writer name: 'WMI Writer'
Writer Id: {a6ad56c2-b509-4e6c-bb19-49d8f43532f0}
Writer Instance Id: {90a6807d-f573-4600-aaa5-742a4dff80e7}
State: [1] Stable
Last error: No error
Writer name: 'Shadow Copy Optimization Writer'
Writer Id: {4dc3bdd4-ab48-4d07-adb0-3bee2926fd7f}
Writer Instance Id: {3377fc33-6642-437a-95a8-4ac6ea60e2f3}
State: [1] Stable
Last error: No error
Writer name: 'Registry Writer'
Writer Id: {afbab4a2-367d-4d15-a586-71dbb18f8485}
Writer Instance Id: {6aeeb7c2-03ee-4b64-86ed-c3d948935757}
State: [1] Stable
Last error: No error
Writer name: 'COM+ REGDB Writer'
Writer Id: {542da469-d3e1-473c-9f4f-7847f01fc64f}
Writer Instance Id: {dd2a0f44-38ab-4bde-b8d6-47c7acefcb81}
State: [1] Stable
Last error: No error
Also, I changed the client so that it is using VSS and NOT VSP for open files however we are still getting the 156 error.
I attached the bpcd log however is doesn't show much and the bpfis and bpbkar logs are empty and the remain empty for each backup.
NOTE: This is a relatively new backup and it has been getting the 156 error since we started backing it up, so it has never got a completely successful backup.
Client info
Windows 2008 64bit server
We have 7.6.0.3 client running on it.
WRN – Snapshot Error while opening directory: GLOBALROOT\Device\HarddiskVolumeShadowCopy34\Program Files\Common File\System
WRN -Snapshot Error while opening directory: GLOBALROOT\Device\HarddiskVolumeShadowCopy42\Program Files\Common File\System