HP 4400 HP B-series Fabric OS 7.0.0a Release Notes (5697-0881, June 2011) - Page 37

Native Connectivity M-EOS interoperability, Port Mirroring, Virtual Fabrics, Zoning

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SAN Backbone Director Switch with a 16-link license is connected to an HP StorageWorks DC04 SAN Director Switch with only 8-link ICL ports. • If ICL ports are disabled on only one side of an ICL link, the enabled side may see enc_out errors. Native Connectivity (M-EOS interoperability) A switch running Fabric OS 7.0.0a cannot form E_Port connectivity with any M-EOS platform. A switch running Fabric OS 7.0.0a can operate only in Brocade native mode (interopmode 0). Connectivity between M-EOS platforms and a switch running Fabric OS 7.0.0a is supported via FCR only. Port Mirroring • On the HP 8/80 Base 48-ports Enabled SAN Switch, the port mirroring feature has a limitation where all port mirror resources must stay within the same ASIC port group. The resources are the configured mirror port, Source Device, and Destination Device or ISL, if the Destination Device is located on another switch. The ASIC port groups are 0-15, 16-31, 32-47, 48-63, and 64-79. The routes are broken if the port mirror resources are spread across multiple port groups. • Port Mirroring is not supported on the Brocade HP 1606 SAN Extension Switch. Virtual 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 connected via a VF incapable switch. Extra caution should be used to verify the FIDs match for all switches in the same Logical Fabric. • A switch with virtual fabrics enabled may not participate in a fabric that is using Password Database distribution or Administrative Domains. The virtual fabrics feature must be disabled prior to deploying in a fabric using these features. Zoning • There are limitations to zoning operations that can be performed from a Fabric OS 6.x switch that is in the same fabric as a Fabric OS 7.0.0a switch if the Fabric OS 6.x switch is not running the recommended firmware version. See the Fabric OS Interoperability section for details. Beginning with the Fabric OS 6.2.0 release, all WWNs containing uppercase characters are automatically converted to lowercase when associated with a zone alias and stored as part of a saved configuration on a switch. For example, a WWN entered as either AA.BB.CC.DD.EE.FF.GG.HH or aa.bb.cc.dd.ee.ff.gg.hh when associated with a zone alias is stored as aa.bb.cc.dd.ee.ff.gg.hh on a switch operating with Fabric OS 6.2.0 or later. This behavioral change in saved zone alias WWN members does not impact most environments. However, in a scenario where a switch with a zone alias WWN member with uppercase characters (saved on the switch with pre-Fabric OS 6.2.0 code) is merged with a switch with the same alias member WWN in lowercase characters, the merge fails, since the switches do not recognize these zoning configurations as being the same. For additional details and workaround solutions, see the latest Fabric OS Admin Guide updates or contact Customer Support. HP B-series Fabric OS 7.0.0a Release Notes 37

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SAN Backbone Director Switch with a 16-link license is connected to an HP StorageWorks DC04
SAN Director Switch with only 8-link ICL ports.
•
If ICL ports are disabled on only one side of an ICL link, the enabled side may see enc_out errors.
Native Connectivity (M-EOS interoperability)
A switch running Fabric OS 7.0.0a cannot form E_Port connectivity with any M-EOS platform. A
switch running Fabric OS 7.0.0a can operate only in Brocade native mode (interopmode 0).
Connectivity between M-EOS platforms and a switch running Fabric OS 7.0.0a is supported via FCR
only.
Port Mirroring
•
On the HP 8/80 Base 48-ports Enabled SAN Switch, the port mirroring feature has a limitation
where all port mirror resources must stay within the same ASIC port group. The resources are the
configured mirror port, Source Device, and Destination Device or ISL, if the Destination Device is
located on another switch. The ASIC port groups are 0-15, 16-31, 32-47, 48-63, and 64-79.
The routes are broken if the port mirror resources are spread across multiple port groups.
•
Port Mirroring is not supported on the Brocade HP 1606 SAN Extension Switch.
Virtual 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 connected via a VF incapable
switch. Extra caution should be used to verify the FIDs match for all switches in the same Logical
Fabric.
•
A switch with virtual fabrics enabled may not participate in a fabric that is using Password Database
distribution or Administrative Domains. The virtual fabrics feature must be disabled prior to deploy-
ing in a fabric using these features.
Zoning
•
There are limitations to zoning operations that can be performed from a Fabric OS 6.x switch that
is in the same fabric as a Fabric OS 7.0.0a switch if the Fabric OS 6.x switch is not running the
recommended firmware version. See the Fabric OS Interoperability section for details.
Beginning with the Fabric OS 6.2.0 release, all WWNs containing uppercase characters are
automatically converted to lowercase when associated with a zone alias and stored as part of a
saved configuration on a switch. For example, a WWN entered as either
AA.BB.CC.DD.EE.FF.GG.HH or aa.bb.cc.dd.ee.ff.gg.hh when associated with a zone alias is
stored as aa.bb.cc.dd.ee.ff.gg.hh on a switch operating with Fabric OS 6.2.0 or later.
This behavioral change in saved zone alias WWN members does not impact most environments.
However, in a scenario where a switch with a zone alias WWN member with uppercase characters
(saved on the switch with pre-Fabric OS 6.2.0 code) is merged with a switch with the same alias
member WWN in lowercase characters, the merge fails, since the switches do not recognize
these zoning configurations as being the same.
For additional details and workaround solutions, see the latest Fabric OS Admin Guide updates
or contact Customer Support.
HP B-series Fabric OS 7.0.0a Release Notes
37