SCSI Commands: 22BMODE SELECT Page 1023.10.14Drive Capabilities Control Mode Page (21h)The Drive Capabilities Control mode page controls the capabilities of the LTO drive.A single copy of this page is maintained for all initiators. New INQUIRY StringControl, Firmware Test Control, and Data Compression Control will be in effectimmediately after MODE SELECT. New Operating Systems Support, ExtendedPOST Mode, and Auto Unload Mode will be in effect the next power cycle, afterMODE SELECT. This page persists across power cycles.ByteBits7 6 5 4 3 2 1 00 Reserved Page Code (21h)1 Page Length (0Eh)2 Operating Systems Support3 Default Block Size Firmware Test Control 2 STTF FTC24 WORM Control Extended POST Mode5 INQUIRY String Control6 Firmware Test Control7 Data Compression Control8 HUO Auto Unload Mode9 Firmware Test Control 310 Firmware Test Control 411 Reserved12 Reserved13 Reserved14 Reserved15 Reserved3.10.14.1 Drive Capabilities Page Field DescriptionsField Bytes Bits DescriptionPage Code 0 0-5 21h, indicating the Drive Capabilities Control Mode Page.AdditionalPage Length1 0Eh, indicating that fourteen parameter bytes follow the PageLength byte.OperatingSystemsSupport2 0 = Standard LTO (default AU1-SCSI and ISV)Default BlockSize3 6-7 00h01h02h03hFixed-block size is 512 bytesFixed-block size is 1024 byteVariable-length block sizereservedFirmware TestControl-2(FTC2)3 3-5,0-10 = disable Factory test mode code (default)1 = enable Factory test code 12 = enable Factory test code 2Save Trace ToFlash (STTF)3 2 0 = disable the Save Trace To Flash feature.1 = enable the Save Trace To Flash feature (default).WORMControl4 6-7 0 = Reading and writing of WORM media allowed1 = Only reading of WORM media allowed2 = Reading and writing of WORM media NOT allowed. Cartridgehandled as an incompatible tape.POST Mode 4 0-5 0 = Enable POST (default)1 = Disable POST
