System information

4
Configuring iSAN Connections
4-23
Configuring a Backup iFCP Connection
5. Set the Timeout for backup activation to between 5 and 60 seconds
(default is 5 seconds). If the backup port cannot reach the primary
port through the local SAN for this period of time, the backup
port assumes that the primary port has failed and activates the
redundant connection. This timeout does not apply if the primary
port is running but the WAN link to the primary port goes down.
In that case the primary port notifies the backup port to activate
the backup connections immediately.
6. Set the Recovery method to Automatic or Manual. This determines
the primary port's behavior when the failure is corrected. When
the port is restarted, it regains connection to the local SAN or a
WAN link.
• Automatic - The primary port takes over the connections from
the backup port immediately. Switching the connections back
to the primary port, like switching them to the backup port
earlier, is disruptive. All data sessions to the affected devices
are terminated. The remote devices are temporarily
de-registered from the local SAN and then re-registered by the
primary port.
• Manual - The backup port continues to serve the transferred
connections after the primary port is restored.
NOTE: Backup port is always on the same SAN Router as the primary port, it
must be configured symmetrically before clicking Apply or OK. For example,
if you select the Port 13 tab and specify Port 14 as a backup, then you must
also select the Port 14 tab and specify Port 13 as the backup.
7. Click OK or Apply.
Redundancy status indicates whether the backup port is active and
ready to take over in case of failure. Press F5 to refresh this status
information. If the backup configuration fails, the backup port
cannot be reached. Verify that the backup port's IP address is the
internal address of the port. If the backup configuration is
rejected, the backup port is disabled, not configured for iFCP, not
configured symmetrically as a backup pair or the local mSAN IDs
differ.