HP StorageWorks Enterprise File Services WAN Accelerator 2.1.11 release notes (392363-007, January 2007)

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Serial clustering
You can provide increased optimization capacity by deploying several HP EFS WAN Accelerators
back-to-back in an in-path configuration to create a serial cluster. HP strongly recommends you use
DL380-5010 HP EFS WAN Accelerators in serial clustering deployments.
Port labeling
You can assign a port label to a range of ports when you define configuration rules in the HP EFS WAN
Accelerator. For example, you can specify a port label for a set of ports when you define fixed-target rules
in the HP EFS WAN Accelerator.
4-Port Gig-E support.
Version 2.1 supports up to three cards per system on the DL380-3010 and DL380-5010 models. When
there are multiple physical links going from the Local Area Network (LAN) to the WAN you can use the
Four-Port Gig-E interface to build multiple pairs of LAN and WAN interfaces (or multiple relays).
Fiber Card support
Version 2.1 supports one card per system on all models. The Fiber Card allows you to connect to optical
fiber devices in your network.
Backward compatibility
Version 2.1 HP EFS WAN Accelerator software is backward compatible with version 1.2.6 and later
software.
Connection Forwarding
In asymmetric networks, where a client request traverses a different network path than the server response,
you can enable Connection Forwarding to ensure that the HP EFS WAN Accelerator optimizes the
connections, even though they traverse different paths.
Automatic data store synchronization
The HP EFS WAN Accelerator automatically copies the data store from the master HP EFS WAN
Accelerator to the backup HP EFS WAN Accelerator in failover configurations. The HP EFS WAN
Accelerator automatically detects changes in the master HP EFS WAN Accelerator data store and copies
the changes to the backup HP EFS WAN Accelerator without disrupting end users.
HP EFS WAN Accelerator to HP EFS WAN Accelerator encryption
The HP EFS WAN Accelerator supports authentication and encryption for communication between two HP
EFS WAN Accelerators using Internet Protocol Security (IPsec). The HP EFS WAN Accelerator also supports
Perfect Forward Secrecy to provide additional security by renegotiating keys at specified intervals.
Microsoft Exchange 2003 Turbo
In addition to the acceleration for Exchange 5.5 and 2.0 messaging environments, the HP EFS WAN
Accelerator provides latency-specific optimizations for Microsoft Exchange 2003. The result is dramatically
faster Exchange 2003 e-mail performance.
Neural Framing
Neural Framing enables the HP EFS WAN Accelerator to select the optimal packet framing boundaries for
SDR. SDR encoding provides the best optimization results when the largest buffer is available before a flush
is performed.
Optimization policies
Setting an optimization policy allows you more flexibility in applying optimization techniques. For example,
if you have a network with abundant bandwidth, you do not need to perform Lempel-Ziv (LZ) compression
to obtain maximum optimization of data.