HP StorageWorks 8/8 HP StorageWorks Fabric OS 6.2.0a release notes (5697-0348, - Page 20

Other important notes and recommendations, Virtual fabrics, Licensing behavior, Frame redirection

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Other important notes and recommendations This section contains additional information that you should consider before you use this Fabric OS release. Virtual fabrics • On Virtual Fabrics-capable platforms, the Virtual Fabrics feature must be enabled after upgrading to Fabric OS 6.2.0a in order to utilize the related capabilities, including Logical Switches and Logical Fabrics. • When creating Logical Fabrics that include switches that are not Virtual Fabrics-capable, it is possible to have two Logical Switches with different FIDs in the same fabric. Extra caution should be used to verify that the FIDs match for all switches in the same Logical Fabric. • The aptpolicy can be configured per logical switch. The Administrator Guide indicates it is a chassis-level setting. • In order to support non-disruptive Hot Code Load on an HP StorageWorks 8/40 SAN Switch with VF enabled, the total zoning DB size for the entire chassis should not exceed 1MB. Licensing behavior When operating a switch with Fabric OS 6.2.0a, some licenses may display as Unknown. This is due to a changes in licensing requirements for some features that no longer require a license key and may still be installed on a switch. Frame redirection In Fabric OS 6.2.0a, Frame Redirection zoning is not allowed with Default Zoning (all access in IM0 and default zone in IM2). This was allowed in prior releases. There is no software enforcement to block the upgrade. Adaptive networking/flow-based QoS prioritization • When using QoS in a fabric with 4G ports or switches, Fabric OS 6.0 or later versions must be installed on all products in order to pass QoS info. E_Ports from the HP StorageWorks DC SAN Backbone Director or HP StorageWorks DC04 SAN Director to other switches must come up after 6.0 is running on those switches. • Flow-based QoS is not supported on FC8 blades in the HP StorageWorks 4/256 SAN Director • Any products that are not capable of operating with Fabric OS 6.0 may not exist in a fabric with Flow-based QoS. Major problems occur if previous generation 2G products exist in the fabric. • For the HP StorageWorks SAN Switch 4/32 and SAN Switch 4/32B, if all of the ports are E_Ports and the switch is upgraded to Fabric OS 6.2.0a, the buffers on the E_Ports are changed to utilize the QoS model. If the switch is rebooted, 28 of 32 ports will come up in QoS mode; the last four ports will come up in buffer-limited mode. Workarounds include disabling long distance configuration for these ports or explicitly disabling QoS on other ports, freeing up buffers for the last four ports. FCR All FCR switches need to be running Fabric OS 6.2.0a in order to support M-EOS 239 Domain Mode on the i10K 20

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Other important notes and recommendations
This section contains additional information that you should consider before you use this Fabric OS
release.
Virtual fabrics
•
On Virtual Fabrics-capable platforms, the Virtual Fabrics feature must be enabled after upgrading
to Fabric OS 6.2.0a in order to utilize the related capabilities, including Logical Switches and
Logical Fabrics.
•
When creating Logical Fabrics that include switches that are not Virtual Fabrics-capable, it is
possible to have two Logical Switches with different FIDs in the same fabric. Extra caution should
be used to verify that the FIDs match for all switches in the same Logical Fabric.
•
The aptpolicy can be configured per logical switch. The Administrator Guide indicates it is a
chassis-level setting.
•
In order to support non-disruptive Hot Code Load on an HP StorageWorks 8/40 SAN Switch with
VF enabled, the total zoning DB size for the entire chassis should not exceed 1MB.
Licensing behavior
When operating a switch with Fabric OS 6.2.0a, some licenses may display as
Unknown
. This is
due to a changes in licensing requirements for some features that no longer require a license key and
may still be installed on a switch.
Frame redirection
In Fabric OS 6.2.0a, Frame Redirection zoning is not allowed with Default Zoning (
all access
in
IM0 and default zone in IM2). This was allowed in prior releases. There is no software enforcement
to block the upgrade.
Adaptive networking/flow-based QoS prioritization
•
When using QoS in a fabric with 4G ports or switches, Fabric OS 6.0 or later versions must be
installed on all products in order to pass QoS info. E_Ports from the HP StorageWorks DC SAN
Backbone Director or HP StorageWorks DC04 SAN Director to other switches must come up after
6.0 is running on those switches.
•
Flow-based QoS is not supported on FC8 blades in the HP StorageWorks 4/256 SAN Director
•
Any products that are not capable of operating with Fabric OS 6.0 may not exist in a fabric with
Flow-based QoS. Major problems occur if previous generation 2G products exist in the fabric.
•
For the HP StorageWorks SAN Switch 4/32 and SAN Switch 4/32B, if all of the ports are E_Ports
and the switch is upgraded to Fabric OS 6.2.0a, the buffers on the E_Ports are changed to utilize
the QoS model. If the switch is rebooted, 28 of 32 ports will come up in QoS mode; the last four
ports will come up in buffer-limited mode. Workarounds include disabling long distance configur-
ation for these ports or explicitly disabling QoS on other ports, freeing up buffers for the last four
ports.
FCR
All FCR switches need to be running Fabric OS 6.2.0a in order to support M-EOS 239 Domain Mode
on the i10K
20