Error Code: Error code: 0x70021

Hi
Backups have failed for a week already with this problem. I suspect it has to do with MS Updates as we are also experiencing some other issues with ISS and possibly Sharepoint.
Stress levels are rising. Here is the error I receive:
1 Information 15/07/2013 08:05:45 Command 'Backing up' is running.
2 Information 15/07/2013 08:05:54 Analyzing partition '1-0'...
3 Information 15/07/2013 08:05:55 Analyzing partition '1-0'...
4 Information 15/07/2013 08:05:56 Create Incremental Backup
From: Disk '2', Disk '1'
To file: "file:H:\Archive(1)_2013_04_27_11_21_50_600D33.TIB"
Compression: Maximum
Exclude: Files matching mask
Match criterion: *\System Volume Information\*{3808876B-C176-4e48-B7AE-04046E6CC752}; ...
5 Information 15/07/2013 08:06:07 Pending operation 151 started: 'Creating partition image'.
6 Information 15/07/2013 08:06:20 Locking partition 0-0...
7 Error 15/07/2013 08:07:44 Operation with partition 'C:' was terminated.
Details:
Failed to create volume snapshot.
Error code: 0x70021
$module = "disk_bundle_vs"
Tag: 0xA5695862AAF8E67C
Failed to start creating the volume snapshot.
Error code: 0x10C442
$module = "disk_bundle_vs"
Tag: 0x14181C22EF45B0C2
Unknown status.
Error code: 0x9
code = 2 147 942 421 (0x80070015),
$module = "disk_bundle_vs"
Tag: 0x2AACB7B2AB852AC
The device is not ready
Error code: 0xFFF0
code = 2 147 942 421 (0x80070015),
$module = "disk_bundle_vs"
Tag: 0xBD28FDBD64EDB8E0
Additional info:
--------------------
Error code: 502
Module: 1
LineInfo: a164035b3ff39287
Fields: $module : disk_bundle_vs
Message: Operation with partition 'C:' was terminated.
Details:
Failed to create volume snapshot.
Error code: 0x70021
$module = "disk_bundle_vs"
Tag: 0xA5695862AAF8E67C
Failed to start creating the volume snapshot.
Error code: 0x10C442
$module = "disk_bundle_vs"
Tag: 0x14181C22EF45B0C2
Unknown status.
Error code: 0x9
code = 2 147 942 421 (0x80070015),
$module = "disk_bundle_vs"
Tag: 0x2AACB7B2AB852AC
The device is not ready
Error code: 0xFFF0
code = 2 147 942 421 (0x80070015),
$module = "disk_bundle_vs"
Tag: 0xBD28FDBD64EDB8E0
--------------------
Error code: 33
Module: 7
LineInfo: a5695862aaf8e67c
Fields: $module : disk_bundle_vs
Message: Failed to create volume snapshot.
--------------------
Error code: 50242
Module: 16
LineInfo: 14181c22ef45b0c2
Fields: $module : disk_bundle_vs
Message: Failed to start creating the volume snapshot.
--------------------
Error code: 9
Module: 0
LineInfo: 2aacb7b2ab852ac
Fields: code : 2147942421, $module : disk_bundle_vs
Message: Unknown status.
--------------------
Error code: 65520
Module: 0
LineInfo: bd28fdbd64edb8e0
Fields: code : 2147942421, $module : disk_bundle_vs
Message: The device is not ready
--------------------
8 Error 15/07/2013 08:07:44 Command 'Backing up' has failed.
Additional info:
--------------------
Error code: 61
Module: 309
LineInfo: 4a8728dc8a1c94f4
Fields: $module : service_process_vs
Message: Command 'Backing up' has failed.
--------------------
Error code: 3
Module: 329
LineInfo: 1cd98aae889424f9
Fields: $module : disk_bundle_vs
Message: Backup has failed.
--------------------
Error code: 1060
Module: 1
LineInfo: b43e776571144dec
Fields: $module : disk_bundle_vs
Message: Failed to commit operations.
--------------------
Error code: 33
Module: 7
LineInfo: a5695862aaf8e67c
Fields: $module : disk_bundle_vs
Message: Failed to create volume snapshot.
--------------------
Error code: 50242
Module: 16
LineInfo: 14181c22ef45b0c2
Fields: $module : disk_bundle_vs
Message: Failed to start creating the volume snapshot.
--------------------
Error code: 9
Module: 0
LineInfo: 2aacb7b2ab852ac
Fields: code : 2147942421, $module : disk_bundle_vs
Message: Unknown status.
--------------------
Error code: 65520
Module: 0
LineInfo: bd28fdbd64edb8e0
Fields: code : 2147942421, $module : disk_bundle_vs
Message: The device is not ready
--------------------
Task 'Incremental backup' has failed on machine 'TECHSBS02.techmaticjhb.local'.
Peter Vigoureux
Acronis Customer Central | Acronis Backup Software
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