152 lines
9.7 KiB
HTML
152 lines
9.7 KiB
HTML
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<meta name="DC.Title" content="Checklist 10: Remove disk units that have device parity protection from a disk pool with mirrored protection" />
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<title>Checklist 10: Remove disk units that have device parity protection
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from a disk pool with mirrored protection</title>
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</head>
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<body id="rzalbcheck13"><a name="rzalbcheck13"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Checklist 10: Remove disk units that have device parity protection
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from a disk pool with mirrored protection</h1>
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<div><p>This checklist shows the sequence of tasks that you use to remove one or
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more disk units from an input/output adapter that is capable of device parity
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protection. These tasks apply when the disk pools that contain the disk units
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have mirrored protection and when the disk units have device parity protection.
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Use these tasks when your are permanently removing disk units from your system.
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Do not use these tasks when you are repairing or replacing a failed disk unit.
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You must restart your server to the dedicated service tools (DST) mode to
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perform the tasks in this checklist.</p>
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<div class="attention"><span class="attentiontitle">Attention:</span> When you perform the tasks in this checklist, the system
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moves large amounts of data. Make sure that you have completely <a href="../rzaiu/rzaiuintro.htm">saved your system</a> in the
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event that you need to recover from an error situation.</div>
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<div class="section"><h4 class="sectiontitle">Before you begin</h4><p>Print a copy of this checklist.
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Check off the configuration tasks as you perform them. This checklist provides
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an important record of your actions. It may help you diagnose any problems
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that occur.</p>
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</div>
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<div class="p">Most tasks in the checklist include links to other topics. Refer to these
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topics if you need more information about how to perform a particular task.
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<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="d0e31">Task</th>
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<th align="left" valign="top" width="45%" id="d0e33">What to do</th>
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<th align="left" valign="top" width="45%" id="d0e35">Where to learn more</th>
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</tr>
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</thead>
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<tbody><tr><td align="left" valign="top" width="10%" headers="d0e31 ">1.___</td>
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<td align="left" valign="top" width="45%" headers="d0e33 ">Display your current disk configuration.</td>
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<td align="left" valign="top" width="45%" headers="d0e35 "><a href="rzalygraphview.htm">Evaluate the current configuration</a></td>
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</tr>
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<tr><td align="left" valign="top" width="10%" headers="d0e31 ">2.___</td>
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<td align="left" valign="top" width="45%" headers="d0e33 ">Calculate the space requirements for the
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disk pools that are involved in disk removal.</td>
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<td align="left" valign="top" width="45%" headers="d0e35 "><a href="rzalycalcspace.htm">Calculate disk space requirements</a></td>
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</tr>
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<tr><td align="left" valign="top" width="10%" headers="d0e31 ">3.___</td>
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<td align="left" valign="top" width="45%" headers="d0e33 ">Use option 21 from the Save menu to save
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your entire system.</td>
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<td align="left" valign="top" width="45%" headers="d0e35 "><a href="../rzaiu/rzaiurzaiu200.htm">Save your server with the GO SAVE command</a></td>
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</tr>
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<tr><td align="left" valign="top" width="10%" headers="d0e31 ">4.___</td>
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<td align="left" valign="top" width="45%" headers="d0e33 ">Restart your server and select the option
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to use dedicated service tools (DST).</td>
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<td align="left" valign="top" width="45%" headers="d0e35 ">"How to Start Dedicated Service Tools (DST)"
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in <a href="../books/sc415304.pdf">Backup and
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Recovery</a> <img src="wbpdf.gif" alt="Link to PDF" />. From the taskpad in iSeries™ Navigator, select <strong>Open iSeries Navigator
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Service Tools</strong>.</td>
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</tr>
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<tr><td align="left" valign="top" width="10%" headers="d0e31 ">5.___</td>
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<td align="left" valign="top" width="45%" headers="d0e33 ">Remove disk units that you plan to remove
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from the system.</td>
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<td align="left" valign="top" width="45%" headers="d0e35 "><a href="rzalyremovedisk.htm">Move and remove disk units</a></td>
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</tr>
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<tr><td align="left" valign="top" width="10%" headers="d0e31 ">6.___</td>
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<td align="left" valign="top" width="45%" headers="d0e33 ">Exclude the disk units from device parity
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protection. If you were successful in excluding the disk units, skip to task
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9. Otherwise, continue to task 7.</td>
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<td align="left" valign="top" width="45%" headers="d0e35 "><a href="rzalyexcludedpy.htm">Exclude disk units from a parity set</a></td>
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</tr>
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<tr><td align="left" valign="top" width="10%" headers="d0e31 ">7.___</td>
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<td align="left" valign="top" width="45%" headers="d0e33 ">Stop mirrored protection for the disk pools
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that will have disk units removed. When you stop mirrored protection, one
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disk unit from each mirrored pair becomes unconfigured. You need to stop
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mirrored protection only if the disk pool contains other disk units that are
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attached to the IOP and have device parity protection.</td>
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<td align="left" valign="top" width="45%" headers="d0e35 "><a href="rzalystopmirror.htm">Stop mirrored protection</a></td>
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</tr>
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<tr><td align="left" valign="top" width="10%" headers="d0e31 ">8.___</td>
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<td align="left" valign="top" width="45%" headers="d0e33 ">Stop device parity protection for all the
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disk units in the IOP.</td>
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<td align="left" valign="top" width="45%" headers="d0e35 "><p><a href="rzalystopdpy.htm">Stop device parity protection</a></p>
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</td>
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</tr>
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<tr><td align="left" valign="top" width="10%" headers="d0e31 ">9.___</td>
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<td align="left" valign="top" width="45%" headers="d0e33 ">Physically remove disk units. This is normally
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done by a service representative. If you stopped device parity protection
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in task 8, continue with task 10. If you did not stop device parity protection,
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skip to task 14.</td>
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<td align="left" valign="top" width="45%" headers="d0e35 "> </td>
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</tr>
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<tr><td align="left" valign="top" width="10%" headers="d0e31 ">10.___</td>
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<td align="left" valign="top" width="45%" headers="d0e33 ">Start device parity protection again.</td>
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<td align="left" valign="top" width="45%" headers="d0e35 "><a href="rzalystartdpy.htm">Start device parity protection</a></td>
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</tr>
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<tr><td align="left" valign="top" width="10%" headers="d0e31 ">11.___</td>
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<td align="left" valign="top" width="45%" headers="d0e33 ">Add unconfigured disk units to the correct
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disk pools. These disk units became unconfigured when you stopped mirrored
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protection in task 7.</td>
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<td align="left" valign="top" width="45%" headers="d0e35 "><a href="rzalyadd.htm">Add a disk unit or disk pool</a></td>
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</tr>
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<tr><td align="left" valign="top" width="10%" headers="d0e31 ">12.___</td>
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<td align="left" valign="top" width="45%" headers="d0e33 ">If you created a new disk pool on your system
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when you added disk units, the system set the storage threshold of the disk
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pool to 90%. If you want a different storage threshold for any disk pool,
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you can change it.</td>
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<td align="left" valign="top" width="45%" headers="d0e35 "><a href="rzalypoolthreshold.htm">Set the threshold of a disk pool</a></td>
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</tr>
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<tr><td align="left" valign="top" width="10%" headers="d0e31 ">13.___</td>
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<td align="left" valign="top" width="45%" headers="d0e33 ">Start mirrored protection for the disk pools
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that had mirrored protection stopped in task 7.</td>
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<td align="left" valign="top" width="45%" headers="d0e35 "><a href="rzalystartmirror.htm">Start mirrored protection</a></td>
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</tr>
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<tr><td align="left" valign="top" width="10%" headers="d0e31 ">14.___</td>
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<td align="left" valign="top" width="45%" headers="d0e33 ">Verify that your disk unit configuration
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is correct.</td>
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<td align="left" valign="top" width="45%" headers="d0e35 "><a href="rzalygraphview.htm">Evaluate the current configuration</a></td>
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</tr>
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<tr><td align="left" valign="top" width="10%" headers="d0e31 ">15.___</td>
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<td align="left" valign="top" width="45%" headers="d0e33 ">Print your disk configuration to have available
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in case a recovery situation occurs.</td>
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<td align="left" valign="top" width="45%" headers="d0e35 "><a href="rzalyprintgraphview.htm">Print your disk configuration</a> </td>
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</tr>
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</tbody>
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</table>
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</div>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzalychecklist.htm">Choose the correct procedure for configuring disks</a></div>
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</div>
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</div>
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</body>
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</html>
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