HP StorageWorks Enterprise File Services WAN Accelerator 2.1.3 Release Notes (February 2006)

• The system administrator can maintain different configurations under different names and can switch to

any saved configuration at any time and continue without disruptions (of course, assuming that the

saved configuration was valid and is still valid).

The above functionality works very well for network devices such as the HP EFS WAN Accelerators.

However, with the addition of PFS feature, it has the following implications:

• Any configuration change such as adding or deleting a share, if not saved automatically causes the

system to start with the impaired functionality and causes service disruption.

• There is no concept of switching configurations with PFS. If saved configuration save1 has the system as

part of domain save1.dom and has shares a, b, and c, and the current configuration has the system as

part of curr.dom and has shares x, y and z; switching to save1 configuration does not work because

the domain information that makes the system part of domain save1.dom has been over written. Also,

the data belonging to the shares a, b and c has been wiped out. Therefore, switching configurations

makes the PFS configuration information invalid.

Limitations

• Samba SMB client on Linux with either a Windows or Samba server gains only bandwidth

optimization, not latency optimization.

• An SMB mount from Linux to any CIFS server is not significantly accelerated. (It performs Scalable Data

Referencing but does not perform Transaction Prediction.)

• CIFS performance degradation occurs with multiple sets (pairs) of in-path HP EFS WAN Accelerators

(Bug #3746).

For example:

client->DL320-2010->WAN->DL320-2010->DL320-1010->DL320-2010->server

This problem is dependent on this configuration. Contact HP Technical Support for further information at

http://www.hp.com

Upgrading from version 1.2 to version 2.1

Version 2.1 interoperates with version 1.2. These instructions assume you are familiar with the HP EFS

WAN Acceleratore, the HP EFS WAN Accelerator Command-Line Interface, and the HP EFS WAN

Accelerator Management Console.

NOTE: Version 2.1 is backward compatible with version 1.2.6 software. If you are running version1.2.5

or lower, you must upgrade to version 1.2.6 before you upgrade to version 2.1.

IMPORTANT: Do not clear the data store before performing a software upgrade.

NOTE: The following upgrade instructions assume that you have a network of 10 WAN Accelerators

(WAN Accelerator-1 through WAN Accelerator-10). Initially, you will upgrade 3 WAN Accelerators

(WAN Accelerator-1 through WAN Accelerator-3).

Steps for upgrading from version 1.2 to version 2.1:

1. Connect to the Management Console on each HP EFS WAN Accelerator.

2. Install the version 2.1 image in the Setup (Software Upgrade page).

3. Save the current configuration in the Setup (Configuration Manager page).

4. Reboot the HP EFS WAN Accelerator in the Setup (Reboot WAN Accelerator page).

5. Connect to the CLI on each of the three HP EFS WAN Accelerators.

6. At the system prompt, enter the following commands: