HP StorageWorks Enterprise File Services WAN Accelerator - Manual (Page 85)

HP S TORAGE W ORKS EFS WAN A CCELERATOR M ANAGEMENT C ONSOLE U SER G UIDE 85
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‹ Pre-Identification of PFS files. PFS requires that files accessed over the WAN
must be identified in advance on the remote HP EFS WAN Accelerator. 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 there are multiple users with read-write access, updating 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 and record
locking is directed between the client and the server, the native-file system,
operating system, and network file system protocols protect the data from
concurrent access by multiple users.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.
PFS requires a HP EFS WAN Accelerator Model DL320-1010, DL320-2010, DL320-
1020, DL320-2020, DL380-3010, or DL380-5010. These models have extra disk
capacity that is utilized when PFS is enabled.
Configuration
Checklist for PFS Before you enable PFS make sure you:
‹ configure the HP EFS WAN Accelerator to use Network Time Protocol (NTP) to
synchronize the time. For detailed information about setting the date and time in
the HP EFS WAN Accelerator, see
“Setting the Date and Time” on page 106 and
“Setting NTP Servers” on page 107 .
‹ configure the DNS server correctly. The configured DNS server must be the same
DNS server to which all the Windows client machines point to.
‹ have a fully qualified domain name for which PFS will be configured. This
domain name must be the domain name for which all the Windows desk-top
machines are configured.
‹ configure the HP EFS WAN Accelerator as a member server in the Windows
2000 domain so that the HP EFS WAN Accelerator can access the domain
controller to authenticate the users accessing its file shares. In order to perform
this operation, a Windows domain account is required with the privileges to
perform a joindomain operation.
‹ install and start the HP EFS Remote Copy Utility (RCU) on the origin server. You
can install the RCU on the origin server or on a separate Windows host with file
share access to the data utilized by PFS. The RCU is available for download from
the HP support site located at
http://www.hp.com. For detailed information, see the HP StorageWorks
Enterprise File Services Remote Copy Utility Reference Manual.