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Hardware Management Console Best Practices

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9 Tips for Maintaining System Firmware on the Managed System

The naming convention for system firmware updates is as follows:

01SFXXX_YYY_ZZZ

XXX is the release level

YYY is the service pack level

ZZZ is the last disruptive service pack level

Upgrades from one release level to another (xxx) are always disruptive, meaning

you must re-IPL. Updates between service pack levels may be run concurrently,

but you need to check.

You may need to upgrade existing HMC code to support a new server that is

running the latest system firmware. As soon as you upgrade the HMC for the new

server, you should plan on upgrading the existing managed servers to the new

system firmware level. You should upgrade the HMC code before upgrading the

system firmware on the existing servers or attaching new servers.

9.1 Understanding Update Packaging

New updates will be in a repository location. Supported repositories include the

IBM service web site; IBM support system (RETAIN); CD or DVD media in the

DVD drive on the HMC; or an FTP site. The HMC hard drive may be used as a

repository location for updating other servers. The standard location (data source)

for updates on an FTP server is /opt/ccfw/data, although any directory can be

used. In other words, the customer can copy update files from the web to an

accessible system within their network that can serve as a local FTP server.

It is important to keep in mind that a complete update consists of two files:

• a firmware code fix pack in RPM format, and

• a cover letter in XML format.

For example, the managed system firmware fix pack level 99 in code released in

July 2005 consists of 01SF230_099_099.rpm and 01SF230_099_099.xml. If one

of these files is missing, then that fix pack is not considered as a valid level by the

LIC Update process on the HMC.

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Do+Able Products 12347 Uživatelský manuál Strana 50