IFW and WIN10 1709

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IFW and WIN10 1709

Postby bob66412 » Fri Oct 27, 2017 2:46 pm

I have a WIN10 Home 1703 fully updated desktop configuration with IFW/IFL 3.12. The system disk consists of three small partitions (Recovery, System, Reserved) and the Primary (C:).

When I take a full backup of the system disk IFW uses VSS - and IFW successfully completes the backup and validation.

I “updated” WIN10 to the 1709. IFW will not take a full system disk backup without “Byte-for-byte comparison failed”.

More information:

I restored a WIN10 1703 backup, and again updated Win10 to 1709 and IFW to 3.12 to be sure the updates ran properly.

IFW under WIN10 1709 uses PHYlock - not VSS. Why?

I have run multiple memory tests using the latest memtest86 - with no errors indicated.

The same full disk backup and byte-for-bye validation works without a problem using IFL.

Any suggestions as to what is happening with IFW 3.12 under WIN10 1709?
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Re: IFW and WIN10 1709

Postby TeraByte Support(PP) » Fri Oct 27, 2017 3:55 pm

Is VSS failing and IFW reverts to PHYLock or is VSS use not enabled?
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Re: IFW and WIN10 1709

Postby bob66412 » Fri Oct 27, 2017 6:40 pm

If I go into Settings, VSS is enabled.

If I check PHYLock "Disable Usage" I get a dialog that says "Unable to obtain a lock on drive C:" "Please ensure that PHYLock was enabled and has not been disabled."
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Re: IFW and WIN10 1709

Postby bob66412 » Fri Oct 27, 2017 8:01 pm

OK – this is really getting to annoy me. Did more testing. To my surprise the partition that is causing the issue is not C:, but the EFI system partition Partition (02) 100 MiB FAT-32. IFW log file is:

[10/27/2017 10:55:45 PM] Image for Windows (x64) 3.12
[10/27/2017 10:55:45 PM] Starting ...
imagew64.exe /b /d:w2@0x2 /f:"G:\Backup-w2-0x2-$~YYYY$-$~MM$-$~DD$-$~HHMM$" /max:4GiB /vb
[10/27/2017 10:55:45 PM] Warning: Validate Byte-for-Byte may fail because the source SSD drive does not support DRAT.
[10/27/2017 10:55:45 PM] Attempting to Create VSS Snapshot...
[10/27/2017 10:55:45 PM] Added \\?\Volume{1e20f7e3-a08b-4d95-a5c0-e163ba43f5b6} to snapshot.
[10/27/2017 10:55:45 PM] VSS Snapshot Creation Failed (800423F4h)
[10/27/2017 10:55:45 PM] 00000000 - Task Scheduler Writer - Stable (N/A)
[10/27/2017 10:55:45 PM] 00000000 - VSS Metadata Store Writer - Stable (N/A)
[10/27/2017 10:55:45 PM] 00000000 - Performance Counters Writer - Stable (N/A)
[10/27/2017 10:55:45 PM] 800423F4 - ASR Writer - Stable
[10/27/2017 10:55:45 PM] 00000000 - Shadow Copy Optimization Writer - Stable (N/A)
[10/27/2017 10:55:45 PM] 00000000 - MSSearch Service Writer - Stable (N/A)
[10/27/2017 10:55:45 PM] 00000000 - Registry Writer - Stable (N/A)
[10/27/2017 10:55:45 PM] 00000000 - BITS Writer - Stable (N/A)
[10/27/2017 10:55:45 PM] 00000000 - WMI Writer - Stable (N/A)
[10/27/2017 10:55:45 PM] 00000000 - COM+ REGDB Writer - Stable (N/A)
[10/27/2017 10:55:46 PM] PHYLock is waiting for drive writing to stop ...
[10/27/2017 10:55:50 PM] PHYLock Started
[10/27/2017 10:55:50 PM] PHYLock Using RAM
[10/27/2017 10:55:50 PM] PHYLock version 14
[10/27/2017 10:55:50 PM] Backup: Drive 2 EFI system partition Partition (02) 100 MiB FAT-32
[10/27/2017 10:55:50 PM] To: G:\Backup-w2-0x2-2017-10-27-2255.TBI
[10/27/2017 10:55:50 PM] INFO: Total Sectors:204800 Total Allocated:61918
[10/27/2017 10:55:50 PM] INFO: 61918 Sector(s) backed up
[10/27/2017 10:55:50 PM] Validating: EFI system partition Partition (02) 100 MiB FAT-32
[10/27/2017 10:55:50 PM] From: G:\Backup-w2-0x2-2017-10-27-2255.TBI
[10/27/2017 10:55:50 PM] Time Elapsed: 0:00:00:05
[10/27/2017 10:55:50 PM] Operation Completed with Error Code 0
[10/27/2017 10:55:50 PM] Stop

If I take a full disk backup, but omit the 100 MiB FAT-32 file the backup uses VSS and the validation completes successfully.
Last edited by bob66412 on Fri Oct 27, 2017 9:28 pm, edited 1 time in total.
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Re: IFW and WIN10 1709

Postby TeraByte Support(PP) » Fri Oct 27, 2017 9:24 pm

Does the Windows Event Viewer have any helpful info on the VSS failure?

The validation most likely fails due to changes being made outside of the snapshot/lock by Windows or because of the drive not supporting DRAT.
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Re: IFW and WIN10 1709

Postby bob66412 » Fri Oct 27, 2017 9:34 pm

Volume Shadow Copy Service error: Unexpected error calling routine IVssAsrWriterBackup::GetAsrMetadata. hr = 0x80042411, A critical volume selected for backup exists on a disk which cannot be backed up by ASR.
.

Operation:
PrepareForBackup event

Context:
Execution Context: ASR Writer
Execution Context: Writer
Writer Class Id: {be000cbe-11fe-4426-9c58-531aa6355fc4}
Writer Name: ASR Writer
Writer Instance ID: {e75dc898-7c78-423f-ab28-9dba15c9a4a5}

Error-specific details:
ASR Writer: A critical volume selected for backup exists on a disk which cannot be backed up by ASR. (0x80042411)

--------------------------------

If the failure was due to DRAT wouldn't it have also failed under WIN10 1703?

And there is not a validation failure when the 100MB partition is left out of a backup and VSS is used. Just asking.
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Re: IFW and WIN10 1709

Postby Brian K » Sat Oct 28, 2017 12:39 am

bob66412,

I use PHYLock but I switched to VSS for this test. IFW 3.12. Win10 1709 installed on a GPT disk as you have. Entire Drive image and /vb. No errors in the IFW log and my SSD doesn't support DRAT.

For what it's worth....
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Re: IFW and WIN10 1709

Postby TeraByte Support(PP) » Sat Oct 28, 2017 8:30 am

I also have several drives that don't say they support DRAT that haven't even had any issues with it.

Can you verify the VSS options in Settings (PHYLock/VSS tab)? Are any of them different from the defaults?

Specifically, are the "Lock Unsupported Volumes", "Ignore Unsupported Volumes", and "Handle EFI System Partition" options enabled?
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Re: IFW and WIN10 1709

Postby bob66412 » Sat Oct 28, 2017 9:10 am

Can you verify the VSS options in Settings (PHYLock/VSS tab)? Are any of them different from the defaults?

I compared my Settings against those shown in the IFW User Manual and they agree with the values shown.

Except for "Use VSS when available", which is checked.

Specifically, are the "Lock Unsupported Volumes", "Ignore Unsupported Volumes", and "Handle EFI System Partition" options enabled?

Yes, they are.
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Re: IFW and WIN10 1709

Postby TeraByte Support » Sun Oct 29, 2017 6:57 pm

Are you sure "Handle EFI System Partition" is enabled?

Does it show GPT next to the drive listed or MBR or EMBR ?
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