HP StorageWorks EFS WAN Accelerator 3.0.12 release notes (AG421-96009, April 2009)

Agentless CIFS prepopulation
RiOS v3.0 includes an improved facility for proactively warming HP EFS WAN Accelerator data
stores with contents from remote file shares. Using the Management Console, proactive warming can
be initiated on a real-time or scheduled basis. You no longer need to install a prewarming server-side
agent for data store warming. Contents from file shares residing on Windows, Network WAN
Accelerator, or EMC servers can be pushed to an HP EFS WAN Accelerator data store, eliminating
the cold hit that occurs when the HP EFS WAN Accelerator has not seen the data before.
Improved CIFS optimizations
RiOS v3.0 provides additional improvements for a number of Windows file sharing applications and
use cases.
Proxy File Service v3.0
Proxy File Service (PFS) has been updated with RiOS v3.0. PFS provides continuous access to remote
file data during WAN disruptions and provides high speed local file delivery with automated origin
server replication. PFS v3.0 includes improvements in the areas of manageability and scalability.
With PFS v3.0 you no longer need to install the HP EFS Remote Copy Utility (EFS RCU) on the Windows
server; all the EFS RCU functionality is embedded in the HP EFS WAN Accelerator, simplifying
configuration and management of PFS shares. PFS is available on the HP ProLiant DL320-520,
DL320-1010, DL320-1020, DL320-2010, DL320-2020, DL380-3010, and DL380-5010 models.
Asymmetric route detection
A prerequisite to HP EFS WAN Accelerators optimizing TCP flows is that all packets for each TCP
connection must pass through the same pair of HP EFS WAN Accelerators. This is a requirement for
packets traveling in both directions across the WAN. However, in asymmetric networks where a client
request traverses a different network link than the server response, the packets traveling in both
directions might not always pass through each HP EFS WAN Accelerator. RiOS v3.0 includes an
intelligent scheme for detecting asymmetric routing environments, reporting when the problem is found,
and automatically passing through traffic for subsequent connections (asymmetric routes may still be
removed by using WCCP). The result is better visibility and interoperability for environments with
asymmetric routes.
Client-side connection forwarding
While asymmetric route detection helps identify problems, client-side connection forwarding takes it
a step further by allowing optimization in environments where asymmetric routing occurs on the
client-side. In addition, client-side connection forwarding provides interoperability for environments
that use per-packet load balancing. The combination of server-side and client-side connection
forwarding plus asymmetric route detection streamlines HP EFS WAN Accelerator deployments in the
most complex network environments, while keeping the simplicity of in-path designs.
Netflow export
RiOS v3.0 provides the ability to export real-time flows from an HP EFS WAN Accelerator to a third
party Netflow collector. From the Netflow collector, you can view byte counts by port, per source or
destination IP address, or from a specific interface. You can obtain traffic views for optimized and
HP StorageWorks EFS WAN Accelerator 3.0.12 release notes 5