HP StorageWorks 2/140 FW 07.01.02/HAFM SW 08.06.00 HP StorageWorks Director Re - Page 23

BB_Credit Allocation for ports, NVRAM caching, Robust large fabrics, Changing password in CLI - 32 switch

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BB_Credit Allocation for ports With firmware 07.00.00 and later, this supports the ability to allocate a specific number of buffer credits per port. This feature provides benefit primarily in the Edge Switch 2/12 and 2/24 switches, where a single pool of buffers is shared among all ports. Users will now be able to allocate buffer credits only where needed. For the Director 2/64, Director 2/140, and Edge Switch 2/32 switches, this enhancement simply allows more granular configuration options for users who want complete configuration control. NVRAM caching All writes to non-volatile memory random access memory (NVRAM), which stores configuration data, are now cached to prevent possible corruption of information. Prior to firmware 07.00.00, a small window existed where a switch power-down during an NVRAM write could enable the configuration default settings when the switch is powered back on. All switches and directors are now protected from potential interruptions to NVRAM updates. Robust large fabrics Numerous low-level enhancements and optimizations have been made to improve the stability of directors and switches in fabrics containing high populations of devices. Changing password in CLI When users are prompted to change the password when logging into the Command Line Interface (CLI), they can enter the default password (password). This will be accepted, however at the next login they will again be required to change the password if it is still the default password. When users enter the default password when prompted to change the password, new Security Log entry 10203, Default Password Not Changed, is posted. Zoning enhancement to reduce fabric congestion In Homogeneous Fabric mode, an enhancement was added to reduce unnecessary fabric congestion when performing fabric-wide zoning operations that impact the Default Zone. This enhancement limits the number of members allowed in the Default Zone to 64. When the firmware detects a zoning operation that would cause the member count in the Default Zone to exceed 64 (such as deactivating an active zone set that has more than 64 members), the operation is aborted and the user interface (HAFM 8.6 or EWS) displays the following message: Zoning request denied: Operation will cause the Default Zone to exceed its limit of 64 members. Director release notes 21

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BB_Credit Allocation for ports
With
fi
rmware 07.00.00 and later, this supports the ability to allocate a speci
fi
c number
of buffer credits per port. This feature provides bene
fi
t primarily in the Edge Switch 2/12
and 2/24 switches, where a single pool of buffers is shared among all ports. Users
will now be able to allocate buffer credits only where needed. For the Director 2/64,
Director 2/140, and Edge Switch 2/32 switches, this enhancement simply allows more
granular con
fi
guration options for users who want complete con
fi
guration control.
NVRAM caching
All writes to non-volatile memory random access memory (NVRAM), which stores
con
fi
guration data, are now cached to prevent possible corruption of information. Prior
to
fi
rmware 07.00.00, a small window existed where a switch power-down during an
NVRAM write could enable the con
fi
guration default settings when the switch is powered
back on. All switches and directors are now protected from potential interruptions to
NVRAM updates.
Robust large fabrics
Numerous low-level enhancements and optimizations have been made to improve the
stability of directors and switches in fabrics containing high populations of devices.
Changing password in CLI
When users are prompted to change the password when logging into the Command Line
Interface (CLI), they can enter the default password (password). This will be accepted,
however at the next login they will again be required to change the password if it is
still the default password.
When users enter the default password when prompted to change the password, new
Security Log entry 10203, Default Password Not Changed
, is posted.
Zoning enhancement to reduce fabric congestion
In Homogeneous Fabric mode, an enhancement was added to reduce unnecessary
fabric congestion when performing fabric-wide zoning operations that impact the Default
Zone. This enhancement limits the number of members allowed in the Default Zone to
64. When the
fi
rmware detects a zoning operation that would cause the member count
in the Default Zone to exceed 64 (such as deactivating an active zone set that has more
than 64 members), the operation is aborted and the user interface (HAFM 8.6 or EWS)
displays the following message:
Zoning request denied:
Operation will
cause the Default Zone to exceed its limit of 64 members.
Director release notes
21