Administrator's Guide

Code

Two complete copies of code are maintained on the system IDE disk. Each copy is referred to as a bank. This banking mechanism enables you to update the code on the appliance without interrupting service. One bank contains the active code. The other bank contains either:

• Nothing, if the code in the bank has been erased.
• A down-level version of the active code. This enables you to return to this level of code if the active version does not meet expectations.
• A newly downloaded version of the code that enables you to prepare for a code upgrade to the appliance.

Currently, code upgrades are delivered as full copies of the system image. To activate a code upgrade, you must reboot the appliance.

Viewing code details

To view information about the code on each bank from the Administrative Console, click System --> Code --> Describe. The following information is provided for each bank:

Bank

One of two complete software images that are maintained on the system. They are named banks A and B.

Status

The status of the code in each bank. Status can be one of the following:

Active

The bank is currently active.

Avail

The code in the bank is not in use.

Corrupt

The code in the bank is corrupt.

None

The bank contains no code.

Pending

The code in the bank has been set to be the active code when the appliance is rebooted.

Product ID

The product identification number of the code installed.

Version

The version number of the code installed.

Release

The release number of the code installed.

Mod

The modification number of the code installed.

PTF

The program temporary fix level of the code installed.

Feature

The feature number of the code installed.

RPQ

The request for price quotation of the code installed (a customer-specific build number).

Date

The date and time when this code image was built

Build

The build name, number and description of the code installed.

Builder

The build environment of the code installed.

Copying code

You can copy code from bank A to bank B or from bank B to bank A, depending on which bank you select to copy to.

To copy code from the Administrative Console:

1. Click System --> Code --> Copy.
2. Select the radio button to the left of the available bank to which you want to copy the code.
3. Click Apply.

Erasing code

To erase code from a bank from the Administrative Console:

1. Click System --> Code --> Erase.
2. Select the radio button to the left of the available bank from which you want to erase the code.
3. Click Apply.

Getting the code

The system image is retrieved from an external server through FTP. The external server must support anonymous FTP.

To get the system image and copy it to a bank from the Administrative Console:

1. Download the system image to a temporary directory from www.ibm.com/storage/support/nas.
2. Copy the system image to an anonymous FTP server.
3. Click System --> Code --> Get.
4. Type the IP address of the machine where the code resides in the Remote server IP address field.
5. Type the name of the file that you want to retrieve in the Remote server file name field.
6. Select the radio button to the left of the bank to which you want to copy the code.

   Note:

   You cannot select an active or pending bank.

7. Click Apply.

Setting the active code bank

To set the code bank to be used as the active bank from the Administrative Console:

1. Click System --> Code --> Set.
2. Select the radio button to the left of the available bank whose code you want to set as active.
3. Click Apply.
4. Restart the appliance to activate the code in the specified bank (see Restarting the appliance).