Re: Joerg   You are very welcome.  It's covered in the CLI guide.  The 6xxx series arrays all run the same firmware code.  Only certain Dell/EQL firmware would work with those arrays. When replacing a drive,  Dell doesn't sync the revision to match existing drivers before shipment.  So supporting mixed drive firmware is a must.    Possibly with older array firmware there's an issue.  Though that's not anything I've seen in 10+ years at EQL.   What firmware are you running on this array?  First I would suggest you try to clear the label, just in case a RAID label from another array is on the drive.  If that fails, if you can, I would remove that drive, restart the array to fail over to the passive CM.  Wait 5 mins, then while logged in, insert the drive.   If you do this on the serial port you will definitely get the console messages.   Which could have a clue.   Issues like these highlight the benefit of having the array under contract.   Regards,   Don 
Hi I have a PS6010xv that is out of warranty. We have a HDD failure and when we replace it there is the error that drive is not approved. The failed HDD is having firmware EE06. the replacement one although has an EE06 label, we found the firmware inside to be EE07. Is it because the firmware version is different so that equallogic can't accept it and is there any work around?
Drive not approved