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Types of Update packages
System Software Maintenance Release
PTF
NAS System Software Update /EC Release
Firmware Updates
Software update practices
Depending on the type, software updates can be limited to only a single component
and can range to multiple filesets. Updates should not affect the configuration of the
NAS Gateway 500. However, a reboot might be required if the update is Kernel
level based update.
System Software Maintenance Release/Level consists of one fileset
update for each fileset that has changed since the base level of the
release of NAS Gateway 500. Each of these fileset updates are
cumulative, containing all fixes for that fileset since the official
Release was introduced, and supersedes all previous updates for
the same fileset. A Recommended Maintenance Release, is a
subset of fileset fixes created for a group of APARs since the most
recent Maintenance Release.
Maintenance Release updates are nondestructive and usually
require a reboot of the system. Supported Maintenance Release will
be listed using the support Web site.
A PTF is a code fix that can be shipped to customers to fix specific
problems (APARs) on a system. A single PTF often ships multiple
files and often fixes multiple APARs. PTFs are nondestructive;
however, based on the software component affected by the fileset
updated, a reboot of the system may be required (note: most
Kernel fileset updates will require a reboot).
Recommended PTFs will be available to the Customer via Internet
download.
The NAS Software Update is a mechanism to update the NAS
system software preload in the field and Manufacturing with the
latest fixes. The Update will contain the latest software updates
since the latest NAS software preload build or software update.
Updates are nondestructive; however, based on the software
component affected by the fileset(s) updated, a reboot of the
system may be required.
Firmware initializes, or sets up, the hardware configuration so that
your system will boot up and operate correctly; it provides the
interface to the system software to control the hardware. Adapter
microcode is the operating code of the adapter; it initializes the
adapter when power is applied and it controls many of the on going
operations executed by the adapter. The NAS Gateway 500 was
developed and tested at a specified firmware level, in which various
adapters and software components are integrated into one solution.
Firmware updates will be posted on the NAS Gateway 500 support
Web site.
Firmware updates will require a reboot of the system and will be
nondestructive. See "System firmware updates" on page 248 for
more information.
Chapter 34. System upgrades and configuration changes
247
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