Virtual Connect SAN Cookbook.pdf - Sallustio.ch
Virtual Connect SAN Cookbook.pdf - Sallustio.ch
Virtual Connect SAN Cookbook.pdf - Sallustio.ch
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Login Redistribution<br />
If a failed port becomes available again, the logins redistribution (or logins failback) is not automatic<br />
except if the Automatic Login Redistribution available with the VC FlexFabric modules is used.<br />
Server 1<br />
Server 2<br />
Server 3<br />
Server 4<br />
HBA1 HBA2 HBA1 HBA2 HBA1 HBA2<br />
HBA1<br />
HBA2<br />
VC Domain<br />
VC <strong>SAN</strong> 1<br />
VC-FC Module<br />
Server 3<br />
Server 2<br />
Server 1<br />
Server 4<br />
Fabric 1<br />
There are two Login redistribution modes:<br />
<br />
<br />
Manual Login Re-Distribution: When configured, a user is expected to initiate a Login Re-<br />
Distribution request via VC GUI or CLI interfaces.<br />
Automatic Login Re-Distribution: When configured, the VC FlexFabric module initiates Login Re-<br />
Distribution automatically when the time interval specified expires.<br />
Table 1: Manual and Automatic Logins Redistribution support<br />
Login Re-Distribution<br />
Mode<br />
Auto-failover*<br />
Auto-failback**<br />
VC-FC<br />
support<br />
MANUAL YES NO YES<br />
AUTOMATIC<br />
YES<br />
YES after link<br />
stability delay<br />
NO<br />
FlexFabric<br />
support<br />
YES<br />
(default)<br />
YES<br />
*: when a port in the <strong>SAN</strong> Fabric group becomes unavailable<br />
**: when a failed port returns to a good working condition<br />
Considerations and concepts 22