Fujitsu MAX3073NC - SCSI,80, Dell DC961,Hard Drive Scsi Logical Interface Specifications page 210

Parameter Data Formats
"1" : Requests that the device server not read into the buffer any logical blocks beyond the
addressed logical blocks.
"0" : The device server continues to read logical blocks into the buffer beyond the addressed logical
blocks.
n. FSW (force sequential write) (not supported)
This bit specifies how to write multiple blocks.
"1" : If the IDD writes multiple blocks, this indicates that data are recorded on the disk media in the
order in which they are transferred from the INIT.
"0" : If the IDD writes multiple blocks, this indicates that data are recorded on the disk media with
their order changed in order to complete the command in the fastest time.
This bit cannot be changed. The IDD disregards the specification in this bit and operates according
to the "Default" value (="1").
o. LBCSS (Logical Block Cache Segment Size) (not supported)
"1" : Indicates that the "Cache segment size" field units are interpreted as logical blocks.
"0" : The "Cache segment size" field units are interpreted as bytes.
This bit is not supported for the IDD. The IDD disregards the specification in this bit.
p. Cache segment count
This parameter specifies the number of cache segments used by the IDD. This parameter is valid
when the SIZE bit specification is "0."
When a value greater than max value is specified, the IDD performs rounding processing and sets
max value. Also, when a value less than 3 is specified, the IDD performs rounding processing and
set 4.
This parameter indicates the same value for all initiators and if it is changed by any initiator, a UNIT
ATTENTION condition (UNIT ATTENTION [=6] / Mode select parameter changed [=2A-01]) is
generated for all the initiators that did not change it.
This parameter can be changed though the IDD disregards the specification of this field. The IDD
divides the Cache Segments according to the inherent algorithm. That is, the Cache Segment size is
best tuned per the request data size of Host command. Within one Cache Segment, data for various
commands are stored.
IDD does not support this parameter. IDD disregards the specification of this field.
q. Non cache buffer size
If this field is greater than zero, this field advises the device server how many bytes the application
client requests that the device server allocate for a buffer function when all other cache segments are
occupied by data to be retained. If the number is at least one, caching functions in the other
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