Dell PowerVault TL4000 SCSI Reference Guide - Page 94

Request, Volume, Element, Address, header

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Request Volume Element Address header Bit Byte 0 1 2 3 4 5 6 7 7 (MSB) (MSB) (MSB) 6 Reserved 5 4 3 2 1 First Element Address Reported Number of Elements Reported Send Action Code Byte Count of Report Available 0 (LSB) (LSB) (LSB) Field descriptions: First Element Address Reported: This field indicates the element address of the element with the smallest element address found to meet the Send Volume Tag command s request. Number of Elements Reported: This field indicates the number of elements found. The status for these elements is returned if the Allocation Length specified in the Request Volume Element Address command was sufficient. Send Action Code: The Send Action Code in the Request Volume Element Address Header returns the Send Action code of the last successful Send Volume Tag command. Byte Count of Report Available: This field indicates the number of available element status bytes that meet the CDB requirements. This value does not adjust to match the Allocation Length field of the CDB and does not include the 8 byte Request Volume Element Address header. 3-80 TL2000 and TL4000 SCSI Reference

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Request
Volume
Element
Address
header
Bit
7
6
5
4
3
2
1
0
Byte
0
(MSB)
First
Element
Address
Reported
1
(LSB)
2
(MSB)
Number
of
Elements
Reported
3
(LSB)
4
Reserved
Send
Action
Code
5
(MSB)
6
Byte
Count
of
Report
Available
7
(LSB)
Field
descriptions:
First
Element
Address
Reported:
This
field
indicates
the
element
address
of
the
element
with
the
smallest
element
address
found
to
meet
the
Send
Volume
Tag
command
s
request.
Number
of
Elements
Reported:
This
field
indicates
the
number
of
elements
found.
The
status
for
these
elements
is
returned
if
the
Allocation
Length
specified
in
the
Request
Volume
Element
Address
command
was
sufficient.
Send
Action
Code:
The
Send
Action
Code
in
the
Request
Volume
Element
Address
Header
returns
the
Send
Action
code
of
the
last
successful
Send
Volume
Tag
command.
Byte
Count
of
Report
Available:
This
field
indicates
the
number
of
available
element
status
bytes
that
meet
the
CDB
requirements.
This
value
does
not
adjust
to
match
the
Allocation
Length
field
of
the
CDB
and
does
not
include
the
8
byte
Request
Volume
Element
Address
header.
3-80
TL2000
and
TL4000
SCSI
Reference