Request Volume Element Address
232 SL150 Interface Reference Manual Julyl 2017
Allocation Length
Specifies the length in bytes of the space allocated by the initiator for the
transfer of element descriptors. Only complete element descriptors are
transferred. Element descriptors are transferred until one of the following
conditions is met:
All available element descriptors of the type specified in the Element Type
Code have been transferred.
The number of element descriptors specified in the Number of Elements
field has been transferred.
There is less allocation length space available than required for the next
complete element descriptor or header to be transferred.
Request Volume Element
Address Data
The library returns data for a Request Volume Element Address command
in:
An eight-byte Volume Element Address header, followed by
One to four element pages, one page per element type. A page consists of:
An eight-byte Element Status Page header, followed by
One or more Element Descriptors.
The format of the descriptor is based on the element type reported in this
page. There is a separate Element Descriptor format for each element type.
The data can be truncated based on the length specified in the allocation
length field.
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