FW 07.01.02/HAFM SW 08.06.00 HP StorageWorks HA-Fabric Manager Release Notes (AA-RUR6G-TE, August 2005)

Zone FlexPar featur
e
Because zoning is managed on a fabric-wide basis, all switches and directors in the
fabric must maintain the same zoning configuration. This configuration is maintained
automatically through the Fibre Channel protocol.
To keep this information current, RSCN messages are sent through the fabric to inform
attached devices
when zoning changes occur, when devices become available, or
when devices become unavailable. In the case where devices become available or
unavailable, RSCNs are sent only to the devices in the same zone. Zoning changes,
however, trigger RSCNs to be sent to all of the devices in the fabric. As fabrics g row
larger and larger, the quantity of RSCNs from zoning changes can create congestion
and disrupt devices, causing them to pause normal activity to determine the status of
the other devices. This can occur even if the new device is not zoned to talk to the
other device
sinthefabric.
With the Zone FlexPar feature enabled, RSCN messages for a zoning change are
handled like RSCNs for availability/unavailability changes. Specifically, RSCNs are
restricted to only those devices sharing at least one common zone with the device that
changed. Th
is way, only devices that are impacted by the change in connectivity
receive RSCNs.
TheZoneFlexParfeatureisavailableinbothOpenFabric1.0andHomogeneous
Fabric 1.0
Interop modes, as well as in environments with loop-attached devices. In
Homogeneous Fabric 1.0 mode, the default zone is treated like any other zone, and
RSCNs are sent only to the affected devices if the default zone is enabled or disabled. A
PFE key is not required for the Zone FlexPar feature, and it can be enabled or disabled
through C
LI for a specific switch. When upgrading to firmware 07.01.02–4 or installing
anewswi
tch with firmware 07.01.02–4 the feature is enabled by default, allowing it
to work i
mmediately. If the Zone FlexPar feature is not enabled on all switches in the
fabric, the restricted RSCN distribution only applies for devices attached to switches
with the feature enabled.
Enhanced SANtegrity Security Suite
SANtegrit y Security Suite enhanced features include authentication support for device
login, interswitch connections and management interfaces. The Secure Access features
are included as a standard part of the SANtegrity Security Suite in firmware 0 7.01.02–4.
Standard features
The following SANtegrity features do not require a license or SANtegrity Binding.
• CHAP
Authentication for HAFM/SWAPI—Thisprovidesauthenticationof
connections from the HAFM appliance ser vice processor and SWAPI D irect
Connect. This ensures that requested HAFM ma nagem ent sessions or SWAPI
Direct Connect sessions are from a trusted source.
• En
cryption of Passwords and Secrets Shared with HAFM—All secrets and
password information are passed in encrypted format for greater security.
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