HP 4400 HP StorageWorks Fabric OS 6.4.0c Release Notes (5697-0703, September 2 - Page 24

Firmware upgrades and downgrades

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Fabric OS features (supported in interopmode 0) Fabric OS 6.4.0c IM = interopmode IM 2 IM 3 Masterless F_Port Trunking (AG connect to Fabric OS switches only) Yes Yes FC10-6 to FC10-6 ISL Yes Yes RASLog Events on Duplicate WWNs Yes Yes Virtual Fabrics Yes Yes Logical Fabric using LISLs (XISLs in base Fabric) No No Port Fencing Yes Yes Bottleneck Detection Yes Yes Lossless DLS No No 1Only Frame Reduction zones can be configured on Fabric OS platforms and sent to fabrics operating in McDATA Open Fabric Mode (interopmode 3). M-EOS 9.9 is required to support Frame Reduction zones in McDATA Open Fabric Mode. 2Requires M-EOS 9.7 or later for redirection between devices attached to Fabric OS switches, M-EOS 9.8 for redirection between devices attached to M-EOS switches, M-EOS 9.9 for use in McDATA Open Fabric Mode. Supported EOS platforms include M4400, M4700, M6140, and Mi10K. 3To support Frame Reduction to an M-EOS edge fabric, there must be at least one Fabric OS switch in the edge fabric to configure Frame Redirection zones. 4All routers (EX_Ports) must reside in a backbone fabric running in interopmode 0 only. Only edge fabrics with devices imported to the backbone fabric or other edge fabrics can operate in interopmode 2 or 3. 5The feature is available, but not tested or supported. 6SCC policies are supported only in conjunction with L2 Fabric Binding. 7Allowed only between Fabric OS-based switches. 8DPS is supported outbound from Fabric OS-based switches. M-EOS can provide reciprocal load balancing using Open Trunking. 9Not supported in Fabric OS 6.0 or later. 10Mode 3 is qualified only with M-EOS switches. 11Not on FCR. 12Supported only locally on the Fabric OS switch. NOTE: FICON Cascaded CUP is qualified on select platforms only. Firmware upgrades and downgrades Upgrading to Fabric OS 6.4.0c is allowed only from Fabric OS 6.3.x. The policy to support one-level migration only, which began with Fabric OS 6.0.0, provides more reliable and robust migrations. By having fewer major changes in internal databases, configurations, and subsystems, the system can perform the upgrade more efficiently, ensuring a truly seamless and nondisruptive process for the fabric. The one-release migration policy also reduces the number of upgrade-downgrade permutations that must be tested, allowing for thorough testing and verification of supported migration paths. If you are migrating from Fabric OS 6.1.x, HP recommends that you use Fabric OS 6.2.2c as the migration path to 6.3.x, and on to 6.4.0c in order to reduce the risk of exposure to known issues at earlier 6.2.x levels. 24

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Fabric OS 6.4.0c
Fabric OS features (supported in interopmode 0)
IM 3
IM 2
IM = interopmode
Yes
Yes
Masterless F_Port Trunking (AG connect to Fabric OS switches only)
Yes
Yes
FC10-6 to FC10-6 ISL
Yes
Yes
RASLog Events on Duplicate WWNs
Yes
Yes
Virtual Fabrics
No
No
Logical Fabric using LISLs (XISLs in base Fabric)
Yes
Yes
Port Fencing
Yes
Yes
Bottleneck Detection
No
No
Lossless DLS
1
Only Frame Reduction zones can be configured on Fabric OS platforms and sent to fabrics operating in McDATA Open
Fabric Mode (interopmode 3). M-EOS 9.9 is required to support Frame Reduction zones in McDATA Open Fabric Mode.
2
Requires M-EOS 9.7 or later for redirection between devices attached to Fabric OS switches, M-EOS 9.8 for redirection
between devices attached to M-EOS switches, M-EOS 9.9 for use in McDATA Open Fabric Mode. Supported EOS platforms
include M4400, M4700, M6140, and Mi10K.
3
To support Frame Reduction to an M-EOS edge fabric, there must be at least one Fabric OS switch in the edge fabric to
configure Frame Redirection zones.
4
All routers (EX_Ports) must reside in a backbone fabric running in interopmode 0 only. Only edge fabrics with devices imported
to the backbone fabric or other edge fabrics can operate in interopmode 2 or 3.
5
The feature is available, but not tested or supported.
6
SCC policies are supported only in conjunction with L2 Fabric Binding.
7
Allowed only between Fabric OS-based switches.
8
DPS is supported outbound from Fabric OS-based switches. M-EOS can provide reciprocal load balancing using Open
Trunking.
9
Not supported in Fabric OS 6.0 or later.
10
Mode 3 is qualified only with M-EOS switches.
11
Not on FCR.
12
Supported only locally on the Fabric OS switch.
NOTE:
FICON Cascaded CUP is qualified on select platforms only.
Firmware upgrades and downgrades
Upgrading to Fabric OS 6.4.0c is allowed only from Fabric OS 6.3.x. The policy to support one-level
migration only, which began with Fabric OS 6.0.0, provides more reliable and robust migrations.
By having fewer major changes in internal databases, configurations, and subsystems, the system
can perform the upgrade more efficiently, ensuring a truly seamless and nondisruptive process for the
fabric. The one-release migration policy also reduces the number of upgrade-downgrade permutations
that must be tested, allowing for thorough testing and verification of supported migration paths.
If you are migrating from Fabric OS 6.1.x, HP recommends that you use Fabric OS 6.2.2c as the
migration path to 6.3.x, and on to 6.4.0c in order to reduce the risk of exposure to known issues at
earlier 6.2.x levels.
24