Special Consideration For Blades; Ip Address Change Of A Node Within An Encryption Group - Brocade Communications Systems Brocade 8/12c Administrator's Manual

Special consideration for blades

HA clusters of FS8-18 blades should not include blades in the same DCX chassis.
For FS8-18 blades, the slot number must also be included in the ipaddrset command, for example:
There are additional considerations if blades are removed and replaced, or moved to a different
slot. On chassis-based systems, IP addresses are assigned to the slot rather than the blade, and
are saved in non-volatile storage on the control processor blades. IP addresses may be assigned
even if no blade is present. If an FS8-18 blade is installed in a slot that was previously configured
for a different type of blade with two IP ports (an FC4-16E blade, for example), the FS8-18 blade is
assigned the address specified for -eth0 in that slot.
To be sure the correct IP addresses are assigned, use the ipaddrshow command to display the
IP address assignments, as shown in the following example:
NOTE
The IP address of the cluster link should be configured before enabling the encryption engine for
encryption. If the IP address is configured after the encryption engine is enabled for encryption, or
if the IP address of the cluster link ports is modified after the encryption engine is enabled for
encryption, the encryption switch must be rebooted, and the encryption blade must be powered off
and powered on (slotpoweroff/slotpoweron) for the IP address configuration to take effect. Failure
to do so will result in the re-key operation not starting in the encryption group or high availability (HA)
cluster.

IP Address change of a node within an encryption group

Modifying the IP address of a node that is part of an encryption group is disruptive in terms of
cluster operation. The change causes the encryption group to split, and if the node was part of an
HA cluster, failover/failback capability is lost. The ipaddrset command issues no warning and you
are not prevented from changing a node IP address that is part of a configured encryption group or
HA cluster. The recommended steps for modifying the IP address of a node are provided below. the
procedures are based on whether the node is a group leader or a member node.
Fabric OS Encryption Administrator's Guide
53-1002159-03
switch:admin> ipaddrset -slot 7 -eth0 --add 10.32.33.34/23
switch:admin> ipaddrset -slot 7 -gate --add 10.32.1.1
switch:admin> ipaddrshow -slot 7
SWITCH
Ethernet IP Address: 10.33.54.207
Ethernet Subnetmask: 255.255.240.0
Fibre Channel IP Address: none
Fibre Channel Subnetmask: none
Gateway IP Address: 10.33.48.1
DHCP: Off
eth0: 10.33.54.208/20
eth1: none/none
Gateway: 10.33.48.1
Configuring cluster links
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