SCSI Commands: 17BINQUIRY Page 30If the Enable Vital Product Data (EVPD) and Command Support Data (CmdDt) bitsare clear and the Page Code is zero, Standard INQUIRY Data is returned. If theEnable Vital Product Data (EVPD) flag is set and the Page Code is zero, theSupported Vital Product Data Pages page is returned.If both EVPD and CmdDt are set then the drive will return CHECK CONDITIONstatus with a sense key of ILLEGAL REQUEST.If CmdDt is set and EVPD is clear then the drive will return the command supportdata for the specified operation code.If the Enable Vital Product Data (EVPD) flag is set and the Page Code is not zeroand there is a vendor defined INQUIRY data page corresponding to that page code,then that page is returned. Otherwise, Check Condition status is returned. TheSense Key is set to Invalid Request (5) and the additional Sense to Invalid Field inCDB (2400).3.5.2 Standard INQUIRY Data PageByteBits7 6 5 4 3 2 1 00 Peripheral Qualifier Peripheral Device Type1 RMB Reserved2 Version3 AERC Obsolete NACA HiSup Response Data Format4 Additional Length5 Reserved6 BQue EncServ VS MuiltiP MChgr Obsolete Obsolete Addr167 RelAdr Obsolete WBus16Sync Linked TransDis CmdQ VS8 – 15 Vendor Identification16 – 31 Product Identification32 – 35 Product Revision Level36 – 55 Vendor Specific56 Reserved Clocking QAS IUS57 Reserved58 - 73 Version Descriptors3.5.2.1 Standard INQUIRY Page Field DescriptionsField Bytes Bits DescriptionPeripheralQualifier0 5-7 Always 000b.PeripheralDevice Type0 0-4 Normally 01h to indicate a sequential access device.7Fh indicates that a logical unit is not present. This value isreturned when an invalid LUN was in the last Identify message.RMB 1 7 Always 1, indicating Removable Media.Version 2 Always 4AERC 3 7 Always 0, indicating Asynchronous Event Reporting Capability isnot supported.
