HP StorageWorks 1606 - Extension SAN Switch Release Note page 6

NOTE:
Advanced Compression is supported only with FOS 6.3.0a and later.
Adaptive Rate Limiting (ARL)—The DC SAN Director Multiprotocol Extension Blade and 1606
Extension SAN Switch allow an FCIP tunnel connection to dynamically change the rate at which
the tunnel transmits data through the TCP connections. ARL uses the information from the TCP
connections to determine and adjust the rate limit for the FCIP tunnel dynamically. This allows FCIP
connections to use the maximum available bandwidth. ARL requires the optional Advanced Extension
license.
FCR enhancements
EX_Port Trunking—This feature was first introduced with FOS 5.2.0. In that release, when a
master EX_Port in a trunk group goes offline, you must select a new area (master port). This causes
all slave EX_Ports of that trunk group to be disabled and brought online to select a new master
EX_Port. The Masterless EX_Port feature (introduced with FOS 6.3.0a) uses the dynamic port
binding capability first introduced with FOS 6.2 to reassign the trunk area from the old master
port to the new master port. With the master port offline condition, one of the slave ports becomes
the new master port, and all of the other slave ports remain online. The new master port uses the
old master port's area, and the old master port gets a new/unused area. The PID of the trunk does
not change with the master port offline condition.
Adaptive Networking—New features were first introduced with FOS 6.0, including FC QoS, which
allows users to establish flow-based prioritization of traffic over a SAN. FOS 6.3 extends QoS
over FCR configurations, allowing support of QoS for traffic flows originating in an edge fabric,
passing through the FC backbone fabric, and then continuing to a destination edge fabric. This
feature requires configuration of both LSAN zones and QoS zones, and requires that the Adaptive
Networking license be installed on switches in both the edge and backbone fabrics.
Adaptive Networking enhancements
If one or more applications running on the data center fabric are slowing down, the administrator
can enable the new Bottleneck Detection feature on all suspected edge switches to which F_Ports are
attached. Using this feature, the administrator can determine whether there are any slow-draining
devices causing network congestion. When this feature is enabled and a switch detects a condition
where the offered load exceeds the rate at which the destination device can accept frames, a RASLog
message is generated and the administrator can view historic statistics logs for the port to investigate
the problem. This new capability is considered part of the Adaptive Networking feature set, but does
not require a license. This feature is available on all 4-Gb and 8-Gb ports.
Enhanced native connectivity with McDATA products
FOS-based platforms operating in interopmode 3 can now participate in Mi10K fabrics using
239 DID mode. Previously, connecting to such fabrics could only be done through FCR.
FOS-based platforms operating in either interopmode 2 or 3 can now participate in M-EOS fabrics
using nondefault DID Base Offset settings.
NOTE:
For specific information HP support for B-series and M-series interop fabrics, see the HP StorageWorks
Merging Fabrics Based on M-series and B-series Fibre Channel Switches Application Notes .
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