HP 316095-B21 FW 08.01.00 McDATA EFCM Basic User Manual (620-000240-000, Novem - Page 288

Glossary O OEM offline offline diagnostics offline sequence offline state OLS online online diagnostics online state Open Systems Architecture open systems management server See original equipment manufacturer. Referring to data stored on a medium, such as tape or even paper, that is not available immediately to the user. Diagnostics that only operate in stand alone mode. User operations cannot take place with offline diagnostics running. OLS. (1) Sequence sent by the transmitting port to indicate that it is attempting to initialize a link and has detected a problem in doing so. (2) Sequence sent by the transmitting port to indicate that it is offline. When the switch or director is in the offline state, all the installed ports are offline. The ports transmit an offline sequence (OLS) and they cannot accept a login got connection from an attached device. Contrast with online state. See offline sequence. Referring to data stored on the system so it is available immediately to the user. Diagnostics that can be run by the customer engineer while the operational software is running. These diagnostics do not impact user operations. When the switch or director is in the online state, all of the unblocked ports are allowed to log into the fabric and begin communicating. Devices can connect to the switch or director 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. OSI. A model that represents a network as a hierarchical structure of functional layers. Each layer provides a set of functions that can be accessed and used by the layer above. Layers are independent, in that implementation of a layer can be changed without affecting other layers (D). OSMS. An optional feature, when enabled, host control and management of the director or switch are provided through an Open g-30 EFCM Basic User Manual