INITIALIZE ELEMENT STATUS WITH RANGE (37h)The INITIALIZE ELEMENT STATUS WITH RANGE command shall cause the media changer to check thespecified elements for volume status and any other relevant status. This command enables the initiator toget a quick response from a Read Element Status command that may follow, and is useful after a powerfailure, if tape medium has been changed by an operator, or if subsystem configuration has changed.Bit 7 6 5 4 3 2 1 0Byte0 Operation Code (37h)1 LUN Reserved Fast Range2 (MSB) Starting Element Address3 (LSB)4 Reserved5 Reserved6 (MSB) Number of Elements7 (LSB)8 Reserved9 ControlField descriptions:Range:A Range bit of zero indicates that all element addresses shall be checked and that the StartingElement Address and Number of Elements fields are ignored. A Range bit of one indicates that theseries of elements beginning at the specified Starting Element Address for the specified Number ofElements shall be checked. If the Number of Elements field is zero, the range checked shall startwith the Starting Element Address and continue through the last element address on the unit.Fast: A Fast bit of one indicates that the specified elements shall be scanned for media presence only. AFast bit of zero indicates that the specified elements shall be scanned for all relevant status.Element Address:When the Range bit is set this field specifies the starting element address of the scan for theInitialize Elements with Range command. When the Range bit is not set the information in thisfield is ignored.Number of Elements:When the Range bit is set this field specifies the number of elements to scan during the InitializeElements with Range command. The number of cartridges to scan should not exceed themaximum number of available storage slots taking in account the starting Element Address field.When the Range bit is not set the information in this field is ignored.Chapter 3. Supported SCSI Commands 3-3
