HP StorageWorks Enterprise File Services WAN Accelerator 3.0.4 deployment guide (AG421-96001, March 2007)
HP STORAGEWORKS ENTERPRISE FILE SERVICES WAN ACCELERATOR DEPLOYMENT GUIDE 101
9 - PROXY FILE SERVICE
D
EPLOYMENTS
Local Mode. For environments that need to efficiently and transparently copy
data created at a remote site to a central data center, perhaps where tape archival
resources are available to backup the data. Local Mode enables read-write access
at remote offices to update files on the origin file server.
Stand-Alone Mode. For network environments where it is more effective to
maintain a separate copy of files that are accessed locally by the clients at the
remote site. In Stand-Alone Mode, create a proxy file server at a remote office
using the remote office HP EFS WAN Accelerator, creating extra storage space.
If any of the above advantages can benefit your environment, then enabling PFS in the
HP EFS WAN Accelerator is appropriate.
Evaluate whether PFS is suitable for your network needs:
Pre-Identification of PFS files. PFS requires that files accessed over the WAN
must be identified in advance. If the data set accessed by the remote users is larger
than the specified capacity of your model or if it cannot be identified in advance,
then you should have end-users access the origin server directly through the HP
EFS WAN Accelerator without PFS (global mode).
Concurrent Read-Write Data Access from Multiple Sites. In a network
environment where users from multiple branch offices update a common set of
centralized files and records over the WAN, the HP EFS WAN Accelerator
without PFS is the most appropriate solution because file locking is directed
between the client and the server. The HP EFS WAN Accelerator always consults
the origin server in response to a client request; it never provides a proxy response
or data from its data store without consulting the origin server.
Configuring PFS Using the Management
Console
This following section describes basic steps for enabling and configuring PFS shares
using the HP EFS WAN Accelerator Management Console (Management Console).
For additional information and detailed procedures, see the HP Enterprise File
Services WAN Accelerator Management Console User Guide.