298 T10000: Interface Reference Manual August 2016
Private Loop Direct Attach
Defines a subset of standards for operations of serial devices (tape drives) on a
private loop.
Private NL_Port
An NL_Port that does not attempt a Fabric Login.
PRLI
See Process Login.
PRLO
See Process Logout.
Process Login (PRLI)
The Process Login command used in Extended Link Services. It is required when
originated by the initiator, requires a response by a drive, and is prohibited when
originated by a drive.
Process Logout (PRLO)
The Process Logout command used in Extended Link Services. It is invokable when
originated by the initiator, requires a response by a drive, is invokable when
originated by a drive, and requires a response by an initiator.
Prohibited
The state of a function, parameter, or operation of FC not being allowed to be used
between an initiator and a target.
Protection Information
Protection information can be generated by a Disk storage controller or it can be
generated at the application layer and may be checked by any object associated with
the I_T_L nexus (see SAM-4). Once received, protection information is retained (for
example, written to medium, stored in non-volatile memory, or recalculated on read
back) by the device server until it is overwritten. Power loss, hard reset, logical unit
reset, and I_T nexus loss shall have no effect on the retention of protection
information.Protection Information is also referred to as theData Integrity Field (DIF)
or Data Integrity Validation (DIV).
Public Loop
An Arbitrated Loop that includes a participating FL_Port and at least one NL_Port.
Public NL_Port
An NL_Port that attempts a Fabric Login.
Q
QoSR
Quality of service request.
R
R_A_TOV
See Resource Allocation Timeout.
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