HP Virtual Connect Fibre Channel Networking Scenarios Cookbook

18
Login Redistribution
If a failed port becomes available again, the login redistribution (or login failback) is not automatic unless you have
configured Automatic Login Redistribution, which is available with the VC FlexFabric modules.
Figure 17: Login redistribution is not automatic with the VC-FC module
VC Domain
VC-FC Module
VC SAN 1
Server 1 Server 4
Server 2
Server 3
HBA1 HBA2
HBA1 HBA2 HBA1 HBA2
Server 3
Server 2
Server 1
HBA1 HBA2
Server 4
Fabric 1
There are two Login redistribution modes for the Fabric-Attach fabric:
 Manual Login Re-Distribution—When configured, a user is expected to initiate a Login Re-Distribution request
using the VC GUI or CLI interfaces.
 Automatic Login Re-Distribution—When configured, the VC FlexFabric module initiates Login Re-Distribution
automatically when the specified time interval expires.
Table 1: Manual and Automatic Logins Redistribution support
Login Re-Distribution
Mode
Auto-failover*
Auto-failback**
VC-FC
support
FlexFabric support
MANUAL
YES
NO
YES
YES (default)
AUTOMATIC
YES
YES
after link stability delay
NO
YES
* when a port in the SAN Fabric group becomes unavailable.
** when a failed port returns to a good working condition.