HP B-series Fabric OS 7.1.1a Release Notes (5697-3023, November 2013 - includes all 7.1.1x versions)

CommentsArea
command on all FCIP interconnected switches to avoid IFCCs in a mainframe environment.
Issuing either a switch disable or an FCIP Tunnel disable command allows the FCIP FICON
Emulation processing state-machine to execute an orderly cleanup process and allow normal
activation of the new configuration. When all cabling and Traffic Isolation Zone manipulations
have been completed, enable the switches or the FCIP Tunnels.
A disabled XGE or GE port is re-enabled after a code upgrade/downgrade. To prevent
XGE/GE ports from being re-enabled after a code load, they should be persistently disabled.
FCIP
Firmware upgrades for FICON are only supported from Fabric OS 7.0.0c or Fabric OS
7.0.0d.
Firmware Downloads
Non-disruptive Hot Code Load is supported only on director class switches (HP StorageWorks
DC SAN Backbone Director, HP StorageWorks DC04 SAN Director Switch, or HP SN8000B
Firmware Downloads
SAN Director switches. Comprehensive non-disruptive Hot Code Load is not supported on
the HP 1606 SAN Extension Switch or HP StorageWorks DC SAN Backbone Director, HP
StorageWorks DC04 SAN Director Switch, or HP SN8000B SAN Director switches with an
HP DC SAN Director Multiprotocol Extension Blade since the FCIP tunnels will go down for
10-15 seconds and all traffic in the tunnels will be disrupted. IFCCs may result if traffic is not
stopped while downloading firmware.
The CUP device must be varied offline to all MVS partitions before starting a code load. The
CUP device can be varied back online after the code load completes. Failure to vary off the
CUP devices may result in missing interrupt.
Firmware Downloads
When connecting an 8 Gb/s or 16 Gb/s capable port in a switch to an IBM Virtualization
Engine TS7700, the port must be configured to a minimum of 16 buffers to avoid IFCCs at
Interoperability
the channel and loss of FICON paths to the control unit. This requires the Extended Fabric
license on the switch.
Port Fencing should be used to avoid taking ports down for normal fabric events. The
recommended fencing criteria and settings are listed in Table 7 (page 32).
Manageability
NOTE: Port fencing should not be set for C3 discards.
As a best practice for deploying Fabric OS switches and directors into a FICON environment,
verify the Fabric OS version shipped with the most current Fabric OS recommendation. HP
Manageability
recommends that you update all Fabric OS switches and directors to the same Fabric OS
levels for production.
FMS must be enabled on the local switch for the remote CUP to work.Manageability
The FICON merge wizard feature in HP Network Advisor cannot be used to merge an HP
StorageWorks 4/256 SAN Director with an HP StorageWorks DC SAN Backbone Director,
HP StorageWorks DC04 SAN Director Switch, or HP SN8000B SAN Director switches.
Manageability
When setting insistent domain ID on a switch using the FICON Configuration Wizard, the
switch is always taken offline and insistent domain ID set, even if insistent domain ID is already
set.
Manageability
The "PORT BANDWIDTH" in the FICON Director Activity Report from RMF may not be
accurate.
Managebility
FPGA version 0x1C on the HP DC SAN Director Multiprotocol Extension Blade is not supported
with Fabric OS 7.0.0c. The FPGA version can be checked by issuing the bladevershow
command.
Serviceability
The SIOCA tool run from HMC on System z performs a similar function and therefore may
not give reliable results.
Serviceability
Under certain circumstances, enabling multiple Traffic Isolation Zones with failover disabled
may cause frames to be dropped due to the timing when paths are re-routed while the zones
Traffic Isolation Zones
are being implemented. To avoid this, all Traffic Isolation Zones should be enabled with
failover enabled first, so that all desired routes are established.
Contact HP technical support before attempting to configure and enable this feature.Traffic Isolation Zones
Additional considerations for FICON environments 31