Considerations For Ficon Cup Environments; Ha Sync State; Table 44 Enterprise-Class Platform Ha Sync States - Brocade Communications Systems 1606 Administrator's Manual

In most cases, you will be upgrading firmware; that is, installing a newer firmware version than the
one you are currently running. However, some circumstances may require installing an older
version; that is, downgrading the firmware. The procedures in this section assume that you are
upgrading firmware, but they work for downgrading as well, provided the old and new firmware
versions are compatible. Always reference the latest release notes for updates that may exist
regarding downgrades under particular circumstances.
For details on Administrative Domains and the firmware download process, see
"Managing Administrative Domains"
For details about testing and restoring firmware, see
platforms"

Considerations for FICON CUP environments

To prevent channel errors during nondisruptive firmware installation, the switch CUP port must be
taken offline from all host systems.

HA sync state

High availability (HA) synchronization occurs when two CPs in an enterprise-class platform are
synchronized. This state provides redundancy and a non-disruptive firmware download. In order for
a firmware download to successfully occur, the two CPs in an enterprise-class platform must be in
sync.
If the CPs have mixed versions when you enter the firmwareDownload command, the CPs may not
be in HA sync. In this case, you need to enter the firmwareDownload –s command first to upgrade
or downgrade the standby CP to the same level as the active CP first, and then upgrade the CPs to
the desired version of firmware.
NOTE
You should not run mixed firmware levels on CPs.
Table 44
installed on the active and standby CP. Use the table to determine if you need to use the
fimrwareDownload -s command.
TABLE 44
Active CP Fabric OS
version
v6.2.0
v6.2.x
v6.3.0
v6.3.0
v6.3.0
v6.4.0
v6.4.0
Fabric OS Administrator's Guide
53-1001763-01
on page 204.
shows the sync state of an enterprise-class platform that has different Fabric OS versions
Enterprise-class platform HA sync states
Standby CP Fabric OS
version
v6.2.0
v6.3.0
v6.2.x
v6.3.0
v6.4.0
v6.3.0
v6.4.0
Firmware download process overview
for more information.
"Test and restore firmware on enterprise-class
HA sync state
inSync
inSync
If Ethernet Switch Service
is enabled, no sync.
inSync
InSync
inSync
inSync
Chapter 15,
Remedy
n/a
n/a
Run firmwareDownload -s on the
standby CP and upgrade it to v6.3.0.
n/a
n/a
Run firmwareDownload -s on the
standby CP and upgrade it to v6.4.0.
n/a
9
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