HP StorageWorks 2/16 User Manual page 180

Glossary
node port
Physical interface within an end device which can connect to an F_Port on a switched fabric or
directly to another N_Port (in point-to-point communications).
nondisruptive maintenance
Ability to service FRUs (including maintenance, installation, removal and replacement) while
normal operations continue without interruption. See also concurrent maintenance.
N_Port
See node port.
offline sequence
Sequence sent by the transmitting port to indicate that it is attempting to initialize a link and
has detected a problem in doing so.
offline state
When the switch is in the offline state, all the installed ports are offline. The ports transmit an
OLS (offline sequence) and they cannot accept a login for connection from an attached device.
Contrast with online state.
OLS
See offline sequence.
online state
When the switch is in the online state, all of the unblocked ports are allowed to login to the
fabric and begin communicating. Devices can connect to the switch if the port is not blocked
and can communicate with another attached device if both devices are in the same zone or if
the default zone is enabled. Contrast with offline state.
Open Systems Management Server
An optional feature that can be enabled on the director or switch through the Product Manager
application. When enabled, host control and management of the director or switch are
provided through an open system interconnection (OSI) device attached to a director or switch
port.
operating state (switch)
The operating states are described as follows:
Online - when the switch is set online, an attached device can log in to the switch if the
port is not blocked. Attached devices can communicate with each other if they are
configured in the same zone.
Glossary–16 edge switch 2/16 product manager user guide