Do+Able Products 12347 Uživatelský manuál stáhnout pdf (Strana 37)

Hardware Management Console Best Practices

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7.2 HMC Code Installation/Upgrade/Update

HMC systems leave manufacturing pre-installed with the most recent level of

code. However, there may be time when re-installation is needed at the

customer’s location.

Beginning with Version 5 Release 1.0, POWER5 HMC code can be installed

using DVD media, or over the network, using a server that accepts PXE (Pre-

Boot Execution Environment) requests.

7.3 Install/Recovery

Installation is the simplest form of applying code on the HMC. It is used by

manufacturing to install code prior to shipping the HMC. When the HMC is at the

customer’s location, an install should only be needed for disaster recovery or

when the customer desires to reload the HMC from scratch. In disaster recovery,

a systems administrator can use an appropriate Recovery CD and the Critical

Console Data backup to get the HMC back to the state it was in prior to the

failure. An old Critical Console Data backup should not be used after upgrading

to newer version or release of HMC. A new CCD backup should be created, as

mentioned above.

7.4 Upgrade

It’s important to distinguish between updating and upgrading a system. The terms

are not synonymous. To upgrade is to bring the system to a higher version or

release of HMC code. When the HMC’s version number is incremented, such as

going from Version 4 to Version 5, the upgrade method must be used in order to

apply the new version of HMC code. Prior to an upgrade, the systems

administrator should perform a Save Upgrade Data to preserve configuration

information on the HMC, i.e., network settings, users’ data and partition profiles.

This data is saved in a special location on the HMC’s hard disk that will not be

erased during the upgrade process. When the upgrade process completes, the data

will be restored to the HMC’s file system.

Only perform a Save Upgrade Data when you are upgrading an HMC. Do not use

it when performing service work on the POWER5 server. If you are planning to

service or replace an FSP or BPC on a p5 server, do a Critical Console Data

backup first.

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Do+Able Products 12347 Uživatelský manuál Strana 37