Terms/Definitions
42 SL500: Interface Reference Manual • July 2008 Revision: F • 96122
Terms/Definitions
Tables throughout this chapter use the following terms to show compliance with
ANSI’s Fibre Channel Tape (FC–Tape) Technical Report and to show how
Sun StorageTek implements them.
FC–Tape Terms
Allowed (A): Can be used between an initiator and a target (library or tape drive).
This status is typically dependent on the particular feature or parameter and its
applicability to the request from an initiator.
Invokable (I): Can be used between an initiator and a target. For example, if a
feature is invoked, the recipient must implement and respond to the feature or
parameter.
Prohibited (P): Can not be used between an initiator and a target.
Required (R): Must be used between an initiator and a target. Both the initiator and
target must implement the feature or parameter.
Dash (–): This parameter is not meaningful.
Blank (): The feature is not part of the feature set.
Initiator: SCSI device that originates commands.
Tar ge t: SCSI device that receives commands.
Sun StorageTek Terms
Yes (Y): Sun StorageTek library conforms to that command, feature, or value.
No (N): Sun StorageTek library does not conform to that command, feature, or
value.
Originate (Orig.): Originates the exchange or SCSI command from the library.
Response (Resp.): Returns an acknowledgement (R_RDY and/or data) from the
library.
Transmission Word: A four-byte character containing 32 bits of information. This is
the smallest information unit transmitted on Fibre Channel. See TABLE 5-2.
TABLE 5-2 Tra n sm i ss io n Wo r d
Word Byte 0 Byte 1 Byte 2 Byte 3
n
(MSB) Bits (LSB)
31 24 23 16 15 8 7 0
(MSB) = Most significant bit (LSB) = Least significant bit
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