I have a Precision T5600 with the PERC H310 SATA/SAS controller and a SATA HDD. When the task sequence tries to partition the disk it fails with the below in SMSTS.LOG. Invalid disk number specified: 0 OSDDiskPart 7/19/2012 4:09:42 PM 1228 (0x04CC) CDisk::GetDiskSize(oDisk.getIndex(), cbDiskSize), HRESULT=80070490 (e:\nts_sms_fre\sms\client\osdeployment\osddiskpart\main.cpp,691) OSDDiskPart 7/19/2012 4:09:42 PM 1228 (0x04CC) LoadDiskConfiguration(oDisk), HRESULT=80070490 (e:\nts_sms_fre\sms\client\osdeployment\osddiskpart\main.cpp,1412) OSDDiskPart 7/19/2012 4:09:42 PM 1228 (0x04CC) Invalid configuration specified. Please ensure that the task sequence is properly configured. OSDDiskPart 7/19/2012 4:09:42 PM 1228 (0x04CC) OSDDiskPart.exe failed: 0x80070490 OSDDiskPart 7/19/2012 4:09:42 PM 1228 (0x04CC) Process completed with exit code 2147943568 TSManager 7/19/2012 4:09:42 PM 1152 (0x0480) !--------------------------------------------------------------------------------------------! TSManager 7/19/2012 4:09:42 PM 1152 (0x0480) Failed to run the action: Partition Disk 0. Element not found. (Error: 80070490; Source: Windows) TSManager 7/19/2012 4:09:42 PM 1152 (0x0480) I've gone to Dell's support site and added the latest WinPE storage drivers into the boot image with no success. Any pointers or tips?

If you are sure you are using the right storage driver you can try to run a diskpart and clean the disk. And then run the task sequence.

Sorry I forgot to mention that diskpart doesn't even see the HDD. Dell's WinPE CAB only has two storage drivers, so I had imported both of those.

Ok if diskpart don't see the hdd then winpe don't have the right driver.

That's what I figured and was hoping somone else has the right drivers, as I can't find any other ones.

Is this the driver you have tried: http://www.dell.com/support/drivers/us/en/555/DriverDetails/DriverFileFormats?DriverId=1DV4H&FileId=2984740710