Fabric OS Administrator’s Guide
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53-1001763-02
Firmware download process overview
9
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
Chapter 15,
“Managing Administrative Domains”
for more information.
For details about testing and restoring firmware, see
“Test and restore firmware on enterprise-class
platforms”
on page 204.
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
shows the sync state of an enterprise-class platform that has different Fabric OS versions
installed on the active and standby CP. Use the table to determine if you need to use the
fimrwareDownload -s command.
TABLE 44
Enterprise-class platform HA sync states
Active CP Fabric OS
version
Standby CP Fabric OS
version
HA sync state
Remedy
v6.2.0
v6.2.0
inSync
n/a
v6.2.x
v6.3.0
inSync
n/a
v6.3.0
v6.2.x
If Ethernet Switch Service
is enabled, no sync.
Run firmwareDownload -s on the
standby CP and upgrade it to v6.3.0.
v6.3.0
v6.3.0
inSync
n/a
v6.3.0
v6.4.0
InSync
n/a
v6.4.0
v6.3.0
inSync
Run firmwareDownload -s on the
standby CP and upgrade it to v6.4.0.
v6.4.0
v6.4.0
inSync
n/a
Summary of Contents for 53-1001763-02
Page 1: ...53 1001763 02 13 September 2010 Fabric OS Administrator s Guide Supporting Fabric OS v6 4 0 ...
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Page 54: ...14 Fabric OS Administrator s Guide 53 1001763 02 High availability of daemon processes 1 ...
Page 74: ...34 Fabric OS Administrator s Guide 53 1001763 02 Basic connections 2 ...
Page 102: ...62 Fabric OS Administrator s Guide 53 1001763 02 Audit log configuration 3 ...
Page 214: ...174 Fabric OS Administrator s Guide 53 1001763 02 Management interface security 7 ...
Page 228: ...188 Fabric OS Administrator s Guide 53 1001763 02 Brocade configuration form 8 ...
Page 276: ...236 Fabric OS Administrator s Guide 53 1001763 02 Creating a logical fabric using XISLs 10 ...
Page 404: ...364 Fabric OS Administrator s Guide 53 1001763 02 ...
Page 440: ...400 Fabric OS Administrator s Guide 53 1001763 02 Performance data collection 17 ...
Page 480: ...440 Fabric OS Administrator s Guide 53 1001763 02 F_Port masterless trunking 19 ...
Page 494: ...454 Fabric OS Administrator s Guide 53 1001763 02 Buffer credit recovery 20 ...
Page 574: ...534 Fabric OS Administrator s Guide 53 1001763 02 Hexadecimal overview E ...