Fabric-attach Fibre Channel networks

SAN infrastructures typically use a Fibre Channel switching solution involving several SAN switches that implement NPIV (N-Port ID Virtualization) technology. NPIV uses N-ports and F-ports to build a Fibre Channel SAN fabric. NPIV enables multiple N_Ports to connect to a switch through a single F_Port, so that a server can share a single physical port with other servers, but access only its associated storage on the SAN.

When you configure a fabric-attach Fibre Channel network, the port you choose for the uplink from the enclosure interconnect to the storage SAN must support NPIV (N_Port ID Virtualization).

Login redistribution

Login redistribution is used for login balancing when logins are not distributed evenly over the Fibre Channel links (for example, when an uplink that was down becomes available).

Auto

Login redistribution is initiated automatically when the link stability time expires.

Manual

Login redistribution must be initiated manually.

NOTE:

The HPE Virtual Connect SE 40Gb F8 Module for HPE Synergy and the HPE Virtual Connect SE 100Gb F32 Module for HPE Synergy uplinks only support auto-login redistribution. For these modules, Fibre Channel networks are allowed to be configured as Manual but are treated as Auto.

HPE Virtual Connect FC Modules support both Auto and Manual login redistribution.

Link stability interval

The link stability interval is enabled when Login redistribution is set to Auto. The link stability interval is the time interval, in seconds, before Login redistribution occurs (when it is set to Auto).

HPE Virtual Connect FC Modules have a default value of 30 seconds and a supported range of 5 to 1800 seconds.

The time in seconds that the module waits before reconnecting to a link that was previously offline (login redistribution). This interval prevents connection loss due to reconnecting to a link that is unstable (going online and offline repeatedly).

Data type:

A number from 1 to 1800, inclusive

HPE Virtual Connect FC Modules support a range of 5 to 1,800 seconds.