HP StorageWorks Enterprise File Services WAN Accelerator 2.1.5 Release Notes (392363-004, June 2006)

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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.
Job scheduling
Jobs are HP EFS WAN Accelerator command-line interface (CLI) commands that are scheduled to execute
at a time you specify. You can schedule software upgrades in the Management Console or in the CLI; you
must schedule all other jobs using the CLI only. You can view pending, inactive, and completed jobs in the
Management Console.
Connection Pooling
Connection Pooling enables you to save an extra round-trip across the WAN for an initial connection.
Connection pooling is useful for protocols which open a number of short lived connections such as
HyperText Transport Protocol (HTTP).
Faster CIFS folder browsing
Specific areas of CIFS improvement include faster directory browsing operations and better acceleration of
data transfers containing folders of small files.
Throughput performance statistics
Performance statistics measuring application throughput performance are now available in the
Management Console and the CLI.