Release NotesDocument 6-01378-10 Rev AOctober 20084 Compatibility MatrixCompatibility Matrix 0The following table provides information about library and tape drive firmwarecompatibility with Scalar i500® i4 (520G.GS003). This information is current as ofthe publication date of these release notes.Component Firmware VersionLibrary Firmware 520G.GS003Drive TypesIBM LTO-2 (Fibre) 8571IBM LTO-2 (SCSI) 8571IBM LTO-3 (Fibre) 85P8IBM LTO-3 (SCSI) 85P8IBM LTO-4 (Fibre) 85V1*IBM LTO-4 (SCSI) 85V1*IBM LTO-4 (SAS) 85V1*HP LTO-4 (Fibre) H46ZHP LTO-4 (SAS) A45Z* Due to security features, you cannot downgrade the IBM LTO-4drive with brick code 82FB or later to previous code levels withoutfollowing specific instructions. If you must downgrade, contactTechnical Support for assistance.Note: You must run the Library Service Utility prior to upgradingfirmware if you are currently running firmware version320G.GS004 or 400G.GS006.