Errors in Windows Application event log

Questions about Cobian Backup 11 (Gravity)
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mbole
Posts: 3
Joined: 24 Jan 2021, 04:59

Errors in Windows Application event log

Post by mbole »

Hi...

Environment:
Windows Server 2008 R2 standard, service pack 1, standalone (no domain)
Cobian Backup Gravity (service mode)
CB Service is running as local system

Two backup tasks, both from one folder on local disk to another folder on local disk.
Trigerred by schedule every night, incremental mode, 2 full copies to keep...

Tasks are executed properly, backup is done as expected, but...

Every time any of this two tasks is trigerred by schedule I get following 4 errors in win Application event log.
Checked permisions in com, HKEY_LOCAL_MACHINE>SYSTEM>CurrentControlSet>Services>VSS>VssAccessControl.

Any idea?

Volume Shadow Copy Service error: Unexpected error querying for the IVssWriterCallback interface. hr = 0x80070005, Access is denied.
. This is often caused by incorrect security settings in either the writer or requestor process.

Operation:
Gathering Writer Data

Context:
Writer Class Id: {35e81631-13e1-48db-97fc-d5bc721bb18a}
Writer Name: NPS VSS Writer
Writer Instance ID: {9ea5ad9f-1c43-411a-b559-095ca534dcca}

Volume Shadow Copy Service error: Unexpected error querying for the IVssWriterCallback interface. hr = 0x80070005, Access is denied.
. This is often caused by incorrect security settings in either the writer or requestor process.

Operation:
Gathering Writer Data

Context:
Writer Class Id: {be9ac81e-3619-421f-920f-4c6fea9e93ad}
Writer Name: Dhcp Jet Writer
Writer Instance ID: {f4c659a1-42ce-434b-adac-f3818169213f}

Volume Shadow Copy Service error: Unexpected error querying for the IVssWriterCallback interface. hr = 0x80070005, Access is denied.
. This is often caused by incorrect security settings in either the writer or requestor process.

Operation:
Gathering Writer Data

Context:
Writer Class Id: {e8132975-6f93-4464-a53e-1050253ae220}
Writer Name: System Writer
Writer Instance ID: {13df0635-5373-4424-9dd9-6254671d29e6}

Volume Shadow Copy Service error: Unexpected error querying for the IVssWriterCallback interface. hr = 0x80070005, Access is denied.
. This is often caused by incorrect security settings in either the writer or requestor process.

Operation:
Gathering Writer Data

Context:
Writer Class Id: {f08c1483-8407-4a26-8c26-6c267a629741}
Writer Name: WINS Jet Writer
Writer Instance ID: {22e1a55d-7a42-49b4-bb8f-de397491a40d}
mbole
Posts: 3
Joined: 24 Jan 2021, 04:59

Re: Errors in Windows Application event log

Post by mbole »

UPDATE

After installing several windows updates, errors are gone except WINS one.

So... this are not Cobian backup errors :)
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cobian
Site Admin
Posts: 117
Joined: 31 Oct 2020, 01:25
Location: Sweden
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Re: Errors in Windows Application event log

Post by cobian »

Those are non-fatal errors as well and the backup should be done without any other problem as far as I know.
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Luis Cobian
Cobian Backup's creator
mbole
Posts: 3
Joined: 24 Jan 2021, 04:59

Re: Errors in Windows Application event log

Post by mbole »

Yes... as I mentioned in the first post, everything is OK with backup.

Just annoing, you see errors in the file server log, and after some time, you start to default to "oh this is those stupid vss errors" and some day, some serious error will come and you will miss it :)
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