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The volume shadow service provider vetoed an operation. The provider logged the error in the event log.

Error 12507

The volume shadow service provider is unable to find an object that has been selected. This could be a volume, a Writer or a Component.

Module:

VSS Error Messages

Reason:

The selected volume, Writer, or Component is not available to the Volume Shadow Service Provider.

Action:

Check the Activity Log and the Windows Event Log for additional information.

Check the Windows server, at the exact backup time, the Windows system logged “Event ID 10, iSCSIPrt,  Login request failed. The Login response packet is given in the dump data.”  The Windows server iSCSI volume tempararily lost the connection to iSCSI target, so CA Brightstor ”Agent for Open File” couldn’t take the snapshot for this volume, therefore CA logged Error 12507 within backup log. 

Check Volume Shadow Copy Error – provider veto for troubleshooting VSS error.

When using the VSS or SYNC driver within a virtual machine, the tools attempt to quiesce all I/O (storage, memory, etc) within the virtual machine. Because the virtual machine has a MS iSCSI initiator LUN attached within it, the VSS or SYNC is unable to quiesce the guest operating system in the time allocated for the quiesce operation.

Disabling VSS

Disabling SYNC

1. Open Device Manager, click View, and select Show hidden devices.
2. Expand Non-Plug and Play Drivers.
3. Right-click Sync Driver and select Disable.
4. Click Yes twice to disable the SYNC driver and restart the virtual machine.

The service console in ESX 3.0 is protected by an iptables firewall
Use esxcfg-firewall to administer

By default, only services required by VMware Infrastructure are enabled;all other services must be activated by the administrator via the VI Client or CLI
Service ports are opened either by known service name or by individual port number

Opening a port by service name:
# esxcfg-firewall –e smbClient

Opening a port by service name:
# esxcfg-firewall –o 123,udp,out,ntp

iptables Known Services

AAMClient*

CIMHttpServer*

CIMHttpsServer*

CIMSLP*

commvaultDynamic

commvaultStatic

ftpClient Continue reading VMware iptables Known Services

Vcbmounter can do either image level or file level backups of your VMware ESX servers. Typically, vcbmounter would do the following:  

• Quiesce the file system on the virtual guest operating system
• Changes the VM’s disks to snapshot mode & takes the snapshot- ensuring that the current virtual disk is available for backup and any changes are written to the snapshot file
• For image-level backups, the VMDK is moved to the VCB server then backed up with your backup software. For file level backups, the VMDK is mounted as a directory on your VCB server, then backed up with your backup software.
• All the while the virtual guest OS continues to function as normal
• When the backup is complete, the changes in the snapshot file are reintegrated

As you can imagine, the vcbmounter command has a number of command line options.

VMware Consolidated Backup — Virtual Machine Mount Utility
Version 1.1.0 (build-64559)
Copyright (C) 1998-2007 VMware, Inc.  All rights reserved.
Usage:
vcbMounter -h <url> -u <username> [-p <password>] <operation> [<mode>] [<verbosty>]
            <url> := <hostname>[":"<port>] Continue reading CMD – VCBMounter.exe