HP MSA 1040 HP MSA 1040/2040 VDS and VSS Hardware Providers Installation Guide - Page 18

Troubleshooting This section contains troubleshooting information for the MSA 1040/2040 VSS Hardware Provider. Table 2 Troubleshooting the VSS Hardware Provider Issue Description The VSS Provider cannot create a snapshot. The following error is reported: VSS_E_PROVIDER_VETO The shadow copy does not exist on the controller. Shadow copy creation failed or the following error message is displayed in the system application event log: SCSI bus # supports maximum SCSI I/O length #, but VSS needs # • The maximum number of snapshots allowed by the snapshot license has already been created. • The storage system has failed to execute the commands from the VSS Provider, or the communication between the VSS Provider and the system is broken due to any of the following conditions: • The LUN that will be used to create the snapshot is not a master volume. • The serial number cannot be obtained for the controller owning the master volume partition. • The snapshot cannot be found in the VSS Provider's snapshot list. • The partition is not a snapshot. • The LUN assignment to the newly created snapshot failed. • The snapshot that will be deleted is not a HP snapshot. • The backup utility automatically deletes the shadow copy when the backup is complete. • You might have used the Windows Explorer shadow copy shell extension context menu to create a shadow copy, which is to be used for creating a Windows software shadow copy, not hardware shadow copies. • Make sure you have created the shadow copy using the persistent (-p) attribute. • If you use the Vssadmin tool from Microsoft to create shadow copies, it is not designed to work with the MSA 1040/2040 VSS Hardware Provider. Vssadmin create shadow only works with the Microsoft software shadow copy provider built into Windows. • The MaximumSGList registry entry must be set to a value of 65 or larger. To set the registry for Qlogic cards, double-click qla2300.reg in the MSA 1040/2040 VSS Hardware Provider's installation directory; for example, C:\Program Files\Hewlett-Packard\ HardwareProviders\MSA2000\VSS\ qla2300.reg. • You might have exceeded the limit allowed for shadow copies on the controller, which varies depending on the model of the array. Refer to the documentation for your array. 18