ibm-information-center/dist/eclipse/plugins/i5OS.ic.rzalw_5.4.0.1/rzalwsw_upgrade.htm

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<h1 class="topictitle1">Shorten software maintenance and upgrade windows</h1>
<div><p>You can keep your system available by effectively planning and
managing fixes and installing new releases.</p>
<div class="section"><h4 class="sectiontitle">Manage fixes</h4><p>To reduce the amount
of time your system is unavailable, you should ensure that you have a fix
management strategy in place. If you stay current on what fixes are available
and install them on a routine basis, you will have fewer problems. Be sure
that you apply fixes as frequently as you have decided is appropriate for
your business needs. For recommendations on how to create a fix management
strategy, see <a href="../rzam8/rzam8fixstrategy.htm">Plan
your fix management strategy</a>.</p>
<p>Individual fixes can be <span class="uicontrol">delayed</span> or
<span class="uicontrol">immediate</span>. Delayed fixes can be loaded and applied
in two separate steps. They can be loaded while your system runs and then
applied the next time you restart your server. Immediate fixes do not require
you to restart your system in order for them to take effect, which eliminates
the need for downtime. Immediate fixes may have additional activation steps
that are described in full in the cover letter that accompanies the fix. For
more information on how to apply fixes, see <a href="../rzam8/rzam8fixinstall1.htm">Install
fixes</a>.</p>
</div>
<div class="section"><h4 class="sectiontitle">Upgrade to a new release</h4><p>You are required to power
down your system when you upgrade to a new version of i5/OS™. To minimize the amount of time a
software upgrade takes, it is important that you plan your installation carefully.
For information on the planning process, see <a href="../rzahc/rzahcupgradeorreplace.htm">Upgrading
or replacing i5/OS and related software</a>. </p>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzalwshorten_planned.htm" title="Planned outages are necessary and are expected; however, because they are planned does not mean they are nondisruptive. Planned outages are often related to system maintenance.">Shorten planned outages</a></div>
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