Brocade Fabric OS v7.0.2e Release Notes v1.0

Fabric OS v7.0.2e Release Notes v1.0 Page 14 of 53
FOS Migration Considerations
This section contains important details to consider before migrating to or from this FOS release.
Recommended Migration Paths to FOS v7.0.2e
Migrating from FOS v7.0
Any 8G or 16G platforms running any FOS v7.0.0x release can be non-disruptively upgraded to FOS v7.0.2e.
Migrating from FOS v6.4.x
DCX/DCX-4S units running any FOS v6.4.x release can be non-disruptively upgraded to FOS v7.0.2e.
Any 8G platforms (other than DCX/DCX-4S) that are currently operating at lower than FOS v6.4.1a must be
upgraded to FOS v6.4.1a or later before non-disruptively upgrading to FOS v7.0.2e.
Upgrading these platforms
from any FOS V6.4.x release
lower than
FOS v6.4.1a to FOS v7.0.2e will cause disruption to FC traffic
.
Upgrading any 8G platform operating at FOS v6.4.1a or later to FOS v7.0.2e is non-disruptive to FC traffic.
Migrating from FOS v6.4.1_fcoe1
The upgrade from FOS v6.4.1_fcoe1 to FOS v7.0.2e is non-disruptive to both FC and FCoE traffic on DCX and
DCX-4S.
Note:
Upgrading from FOS v6.4.1_fcoe or FOS v6.4.x releases other than v6.4.1_fcoe1 to FOS v7.0.2e will be
disruptive to FCoE traffic going through FCOE10-24 blades in DCX/DCX-4S. When loading FOS v7.0.2e with
Brocade Network Advisor v11.1.1/11.1.1a, there is no warning flagging this FCoE traffic disruption.
Migrating from FOS v6.3.x
To non-disruptively migrate from FOS v6.3.x to v7.0.2e, units should first load FOS v6.4.1a or later (v6.4.1b
should be used for encryption platforms, units operating in Access Gateway mode, or units with ports
configured as EX or VEX for FCR), and then migrate to FOS v7.0.2e.
FOS Upgrade and Downgrade Special Considerations
The DCX/DCX-4S units running any FOS v6.4.x can be non-disruptively upgraded to FOS v7.0.2e. This upgrade
is non-disruptive to FC traffic only. When loading FOS v7.0.2e to a DCX chassis with FCOE10-24 blades with
Brocade Network Advisor v11.1.1/11.1.1a, there is no warning flagging FCoE traffic disruption.
The DCX/DCX-4S units running FOS v6.4.1_fcoe1 can be non-disruptively upgraded to FOS v7.0.2e. This
upgrade is non-disruptive to both FCoE traffic through FCOE10-24 blades and FC traffic.
Non-disruptive upgrade to FOS v7.0.2e on 8G switches is allowed from
FOSv6.4.1a
or later.
Disruptive
upgrades to Fabric OS 7.0.2e are allowed and supported from FOS 6.3 (up to a two-level migration)
using the optional “-s” parameter with the firmwaredownload command.
If there are multiple node EGs (encryption groups) in a fabric, please complete firmwaredownload on one node
at a time before downloading on another node.
The Brocade 8000 does not support non-disruptive hot code loads (HCL). Upgrading the Brocade 8000 to FOS
v7.0 .2e will be disruptive to the I/O through the switch.
FC FastWrite , EX_Ports, and TCP byte streaming on FR4-18i must be disabled prior to upgrading to FOS
v7.0.2e. Failure to do so will cause the upgrade to be blocked.
Upgrading a switch currently operating in interopmode 2 or 3 to FOS v7.0.2e is disruptive. The interopmode
must be changed to 0 prior to upgrading to FOS v7.0.2e, as interopmodes 2 and 3 are not supported on FOS
v7.0.2e. Changing the interopmode is an offline operation.