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ibm-information-center/dist/eclipse/plugins/i5OS.ic.rzaly_5.4.0.1/rzalycheck2.htm

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<h1 class="topictitle1">Checklist 2: Add disk units without device parity protection</h1>
<div><p>This checklist shows the sequence of tasks that you use to configure disks
on a new iSeries™ server.
Whether you need to perform all the tasks depends on the disk protection that
you want on your system. <a href="rzalydpconcepts.htm">Disk protection</a> provides
more information about the disk protection that is available. </p>
<div class="section"><h4 class="sectiontitle">Disk pools with mirrored protection</h4><p>You can add
disk units to a disk pool that has mirrored protection without stopping and
starting mirrored protection. You must add disk units in pairs with equal
capacities. The added units will always be paired with each other. You might
want to choose a later time, when your system can be unavailable for several
hours, to stop and start mirrored protection. When you start mirrored protection
again, the system evaluates the pairing for all disk units on your system.
This might provide a higher level of availability for failures that affect
an input/output adapter (IOA), an input/output processor (IOP), or a bus.</p>
</div>
<div class="section"><h4 class="sectiontitle">Attention</h4>When you perform the tasks in this checklist,
the system moves large amounts of data. Make sure that you have completely <a href="../rzaiu/rzaiuintro.htm">saved your system</a> in
the event that you need to recover from an error situation.</div>
<div class="section"><h4 class="sectiontitle">Before you begin</h4><p>Print a copy of this checklist.
Check off the configuration tasks as you perform them. This checklist provides
an important record of your actions. It might help you diagnose any problems
that occur.</p>
<p>Most tasks in the checklist include references to other
topics. Refer to these topics if you need more information about how to perform
a particular task.</p>
</div>
<div class="p">
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" width="100%" frame="border" border="1" rules="all"><thead align="left"><tr><th align="left" valign="top" width="10%" id="d0e46">Task</th>
<th align="left" valign="top" width="45%" id="d0e48">What to do</th>
<th align="left" valign="top" width="45%" id="d0e50">Where to learn more</th>
</tr>
</thead>
<tbody><tr><td align="left" valign="top" width="10%" headers="d0e46 ">1.___</td>
<td align="left" valign="top" width="45%" headers="d0e48 ">Use the Disk Unit Graphical View window to
find empty slots for the disk units you want to install.</td>
<td align="left" valign="top" width="45%" headers="d0e50 "><a href="rzalygraphview.htm">Evaluate the current configuration</a></td>
</tr>
<tr><td align="left" valign="top" width="10%" headers="d0e46 ">2.___</td>
<td align="left" valign="top" width="45%" headers="d0e48 ">Right-click an empty slot and start the Install
Disk Unit wizard to guide you through the process.</td>
<td align="left" valign="top" width="45%" headers="d0e50 "> </td>
</tr>
<tr><td align="left" valign="top" width="10%" headers="d0e46 ">3.___</td>
<td align="left" valign="top" width="45%" headers="d0e48 ">Use the Add Disk Unit wizard to add nonconfigured
disks to existing or new disk pools. You will have the option to start compression
or to add disk units of equal capacity to mirror-protected disk pools if
disks are available for these actions.</td>
<td align="left" valign="top" width="45%" headers="d0e50 "><a href="rzalyadd.htm">Add a disk unit or disk pool</a></td>
</tr>
<tr><td align="left" valign="top" width="10%" headers="d0e46 ">4.___</td>
<td align="left" valign="top" width="45%" headers="d0e48 ">Change the storage threshold for any disk
pool if required. The default storage threshold for each disk pool is 90%. </td>
<td align="left" valign="top" width="45%" headers="d0e50 "><a href="rzalypoolthreshold.htm">Set the threshold of a disk pool</a></td>
</tr>
<tr><td align="left" valign="top" width="10%" headers="d0e46 ">5.___</td>
<td align="left" valign="top" width="45%" headers="d0e48 ">If you chose to create protected disk pools
and you included pairs of disk units to be mirrored, you might want to restart
to the dedicated service tools (DST) mode and start mirroring for those disk
pools now.</td>
<td align="left" valign="top" width="45%" headers="d0e50 "><a href="rzalystartmirror.htm">Start mirrored protection</a></td>
</tr>
<tr><td align="left" valign="top" width="10%" headers="d0e46 ">6.___</td>
<td align="left" valign="top" width="45%" headers="d0e48 ">If you started mirrored protection for the
system disk pool or for a basic disk pool, wait until your system completely
restarts.</td>
<td align="left" valign="top" width="45%" headers="d0e50 "> </td>
</tr>
<tr><td align="left" valign="top" width="10%" headers="d0e46 ">7.___</td>
<td align="left" valign="top" width="45%" headers="d0e48 ">Verify that your disk configuration is correct.</td>
<td align="left" valign="top" width="45%" headers="d0e50 "><a href="rzalygraphview.htm">Evaluate the current configuration</a></td>
</tr>
<tr><td align="left" valign="top" width="10%" headers="d0e46 ">8.___</td>
<td align="left" valign="top" width="45%" headers="d0e48 ">Print your disk configuration to have available
in case a recovery situation occurs.</td>
<td align="left" valign="top" width="45%" headers="d0e50 "><a href="rzalyprintgraphview.htm">Print your disk configuration</a> </td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
<div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="rzalychecklist.htm">Choose the correct procedure for configuring disks</a></div>
</div>
</div>
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