ibm-information-center/dist/eclipse/plugins/i5OS.ic.rzam4_5.4.0.1/rzam4rstsupport.htm

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<h1 class="topictitle1">RST Support</h1>
<div><p>RST can be used to select a volume or volumes to restore.</p>
<p>The RST command protocol requires that all physical file systems adhere
to a certain set of predefined rules governing how restore is handled, depending
on whether or not the object exists on the system. For purposes of restoring
an optical volume image, the target media must exist on the system, either
mounted in a stand-alone device or imported into an optical media library.
Also, it must be accessible by the name specified on the OBJ-New Path Name
parameter. The OBJ-New Path Name must either match the name of the OBJ-Name
parameter or be *SAME. This restriction will require that unformatted volumes
be renamed before executing the RST command. Unformatted volumes can be renamed
using option 7 from either the WRKOPTOL, WRKLNK display or by issuing the
generic RNM command.</p>
<p>When an unformatted volume is renamed, the new name acts as an alias to
the unformatted volume. The new name will not be written to the media and
will not be preserved if the volume is removed from the device. The name is
only a temporary volume identifier used to refer to this volume until the
volume is restored.</p>
<p>Saved volumes can be restored to both unformatted and formatted volumes.
If restoring to a formatted volume that contains active files and directories,
an inquiry message is sent. If you proceed with the restore, all data on the
target media will be lost.</p>
<p>Saved HPOFS volumes can be restored to Erasable media with matching sector
sizes and a capacity equal to or greater than the saved volume.</p>
<p>Saved UDF volumes on DVD and Erasable can be restored onto DVD or eraseable
media, but media capacity and sector size must be identical to the saved volume.</p>
<p>WORM volumes can be restored to either WORM or Erasable media as long as
the capacity of the target media is greater than or equal to the saved volume
capacity and the sector size is identical to the saved volume. When restoring
to WORM, the target volume must be unformatted.</p>
<p>The performance of RST is comparable to DUPOPT, although it depends on
the target device chosen.</p>
</div>
<div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="rzam4savrst.htm" title="The SAV command can be used to create a backup of an optical volume image. The volume image is restored using the RST command.">Save/Restore (SAV/RST) commands</a></div>
</div>
</div><div class="nested1" xml:lang="en-us" id="rzam4parameters"><a name="rzam4parameters"><!-- --></a><h2 class="topictitle2">Parameters</h2>
<div><p><strong>OBJ Name</strong> Name of the optical volume image or images to be restored
from a save/restore device. </p>
<p><strong>OBJ New</strong> Path Name Specify a single or multiple path names. The path
name cannot be extended beyond the volume level. Examples of invalid path
names include, /QOPT/VOL/* or /QOPT/VOL/DIR/FILE. Specify the names of
existing volumes or *SAME. </p>
<p><strong>SUBTREE</strong> Must be *STG when restoring optical volume images.</p>
<p><strong>OPTION</strong> Must be *ALL or *OLD.</p>
<p><strong>ALOWOBJDIF</strong> Select *OWNER, *PGP, *AUTL, *NONE, *ALL. The value selected
determines what differences will be tolerated between the saved volume and
the formatted target volume. If changes are allowed, an attempt will made
to preserve the security attributes UID, GID and PERMS of a the UDF target
volume root directory. The *OWNER and *PGP values are not checked when restoring
to an uninitialized volume or when restoring to an initialized HPOFS volume. </p>
<p>Refer to the CL Reference guide for a further explanation of parameter
values and their meaning.</p>
</div>
</div>
<div class="nested1" xml:lang="en-us" id="rzam4examples"><a name="rzam4examples"><!-- --></a><h2 class="topictitle2">Examples</h2>
<div><ul><li>Restore all volumes within the QOPT file system from a save file.<p>RST
DEV(/qsys.lib/xzylib.lib/xzysavefile.file) OBJ((* *INCLUDE *SAME)) SUBTREE(*STG).</p>
</li>
<li>Restore all volumes beginning with vola and volb from a save file.<p>RST
DEV(/qsys.lib/xzylib.lib/xzysavefile.file) OBJ((/qopt/vola* *INCLUDE *same)
(/qopt/volb* *INCLUDE *same)) SUBTREE(*STG)</p>
</li>
<li>Restore one volume, vol1 to vol1.<p>RST DEV(/qsys.lib/tap01.devd) OBJ((/qopt/vol1
*INCLUDE *same)) SUBTREE(*STG) </p>
</li>
</ul>
<div class="p"><div class="note"><span class="notetitle">Note:</span> The OBJ-New Path Name must either match the name of the OBJ-Name
parameter or be *SAME. <u>This restriction will require that unformatted volumes
be renamed prior to executing the RST command.</u></div>
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