INITIALIZE ELEMENT STATUS WITH RANGE (37h)
The INITIALIZE ELEMENT STATUS WITH RANGE command shall cause the media changer to check the
specified elements for volume status and any other relevant status. This command enables the initiator to
get a quick response from a Read Element Status command that may follow, and is useful after a power
failure, if tape medium has been changed by an operator, or if subsystem configuration has changed.
Bit 7 6 5 4 3 2 1 0
Byte
0 Operation Code (37h)
1 LUN Reserved Fast Range
2 (MSB) Starting Element Address
3 (LSB)
4 Reserved
5 Reserved
6 (MSB) Number of Elements
7 (LSB)
8 Reserved
9 Control
Field descriptions:
Range:
A Range bit of zero indicates that all element addresses shall be checked and that the Starting
Element Address and Number of Elements fields are ignored. A Range bit of one indicates that the
series of elements beginning at the specified Starting Element Address for the specified Number of
Elements shall be checked. If the Number of Elements field is zero, the range checked shall start
with 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. A
Fast 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 the
Initialize Elements with Range command. When the Range bit is not set the information in this
field is ignored.
Number of Elements:
When the Range bit is set this field specifies the number of elements to scan during the Initialize
Elements with Range command. The number of cartridges to scan should not exceed the
maximum 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
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