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        <a href="rtslib-module.html">Package&nbsp;rtslib</a> ::
        <a href="rtslib.tcm-module.html">Module&nbsp;tcm</a> ::
        Class&nbsp;BlockStorageObject
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<!-- ==================== CLASS DESCRIPTION ==================== -->
<h1 class="epydoc">Class BlockStorageObject</h1><p class="nomargin-top"></p>
<pre class="base-tree">
  object --+        
           |        
<a href="rtslib.node.CFSNode-class.html">node.CFSNode</a> --+    
               |    
   <a href="rtslib.tcm.StorageObject-class.html">StorageObject</a> --+
                   |
                  <strong class="uidshort">BlockStorageObject</strong>
</pre>

<hr />
<p>An interface to configFS storage objects for block backstore.</p>

<!-- ==================== INSTANCE METHODS ==================== -->
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<tr>
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      <span class="summary-type">&nbsp;</span>
    </td><td class="summary">
      <table width="100%" cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td><span class="summary-sig"><a href="rtslib.tcm.BlockStorageObject-class.html#__init__" class="summary-sig-name">__init__</a>(<span class="summary-sig-arg">self</span>,
        <span class="summary-sig-arg">name</span>,
        <span class="summary-sig-arg">dev</span>=<span class="summary-sig-default">None</span>,
        <span class="summary-sig-arg">wwn</span>=<span class="summary-sig-default">None</span>,
        <span class="summary-sig-arg">readonly</span>=<span class="summary-sig-default">False</span>,
        <span class="summary-sig-arg">write_back</span>=<span class="summary-sig-default">False</span>)</span><br />
      A BlockIOStorageObject can be instantiated in two ways:</td>
          <td align="right" valign="top">
            
            
          </td>
        </tr>
      </table>
      
    </td>
  </tr>
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      <span class="summary-type">&nbsp;</span>
    </td><td class="summary">
      <table width="100%" cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td><span class="summary-sig"><a href="rtslib.tcm.BlockStorageObject-class.html#_configure" class="summary-sig-name" onclick="show_private();">_configure</a>(<span class="summary-sig-arg">self</span>,
        <span class="summary-sig-arg">dev</span>,
        <span class="summary-sig-arg">wwn</span>,
        <span class="summary-sig-arg">readonly</span>)</span></td>
          <td align="right" valign="top">
            
            
          </td>
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      </table>
      
    </td>
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    <td width="15%" align="right" valign="top" class="summary">
      <span class="summary-type">&nbsp;</span>
    </td><td class="summary">
      <table width="100%" cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td><span class="summary-sig"><a name="_get_major"></a><span class="summary-sig-name">_get_major</span>(<span class="summary-sig-arg">self</span>)</span></td>
          <td align="right" valign="top">
            
            
          </td>
        </tr>
      </table>
      
    </td>
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    <td width="15%" align="right" valign="top" class="summary">
      <span class="summary-type">&nbsp;</span>
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          <td><span class="summary-sig"><a name="_get_minor"></a><span class="summary-sig-name">_get_minor</span>(<span class="summary-sig-arg">self</span>)</span></td>
          <td align="right" valign="top">
            
            
          </td>
        </tr>
      </table>
      
    </td>
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    <td width="15%" align="right" valign="top" class="summary">
      <span class="summary-type">&nbsp;</span>
    </td><td class="summary">
      <table width="100%" cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td><span class="summary-sig"><a name="_get_size"></a><span class="summary-sig-name">_get_size</span>(<span class="summary-sig-arg">self</span>)</span></td>
          <td align="right" valign="top">
            
            
          </td>
        </tr>
      </table>
      
    </td>
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<tr class="private">
    <td width="15%" align="right" valign="top" class="summary">
      <span class="summary-type">&nbsp;</span>
    </td><td class="summary">
      <table width="100%" cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td><span class="summary-sig"><a name="_get_wb_enabled"></a><span class="summary-sig-name">_get_wb_enabled</span>(<span class="summary-sig-arg">self</span>)</span></td>
          <td align="right" valign="top">
            
            
          </td>
        </tr>
      </table>
      
    </td>
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    <td width="15%" align="right" valign="top" class="summary">
      <span class="summary-type">&nbsp;</span>
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        <tr>
          <td><span class="summary-sig"><a name="_get_readonly"></a><span class="summary-sig-name">_get_readonly</span>(<span class="summary-sig-arg">self</span>)</span></td>
          <td align="right" valign="top">
            
            
          </td>
        </tr>
      </table>
      
    </td>
  </tr>
<tr>
    <td width="15%" align="right" valign="top" class="summary">
      <span class="summary-type">&nbsp;</span>
    </td><td class="summary">
      <table width="100%" cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td><span class="summary-sig"><a href="rtslib.tcm.BlockStorageObject-class.html#dump" class="summary-sig-name">dump</a>(<span class="summary-sig-arg">self</span>)</span></td>
          <td align="right" valign="top">
            
            
          </td>
        </tr>
      </table>
      
    </td>
  </tr>
  <tr>
    <td colspan="2" class="summary">
    <p class="indent-wrapped-lines"><b>Inherited from <code><a href="rtslib.tcm.StorageObject-class.html">StorageObject</a></code></b>:
      <code><a href="rtslib.tcm.StorageObject-class.html#__eq__">__eq__</a></code>,
      <code><a href="rtslib.tcm.StorageObject-class.html#__ne__">__ne__</a></code>,
      <code><a href="rtslib.tcm.StorageObject-class.html#__repr__">__repr__</a></code>,
      <code><a href="rtslib.tcm.StorageObject-class.html#delete">delete</a></code>,
      <code><a href="rtslib.tcm.StorageObject-class.html#is_configured">is_configured</a></code>
      </p>
    <div class="private">    <p class="indent-wrapped-lines"><b>Inherited from <code><a href="rtslib.tcm.StorageObject-class.html">StorageObject</a></code></b> (private):
      <code><a href="rtslib.tcm.StorageObject-class.html#_config_pr_aptpl" onclick="show_private();">_config_pr_aptpl</a></code>,
      <code><a href="rtslib.tcm.StorageObject-class.html#_control" onclick="show_private();">_control</a></code>,
      <code><a href="rtslib.tcm.StorageObject-class.html#_enable" onclick="show_private();">_enable</a></code>,
      <code><a href="rtslib.tcm.StorageObject-class.html#_gen_attached_luns" onclick="show_private();">_gen_attached_luns</a></code>,
      <code><a href="rtslib.tcm.StorageObject-class.html#_get_name" onclick="show_private();">_get_name</a></code>,
      <code><a href="rtslib.tcm.StorageObject-class.html#_get_status" onclick="show_private();">_get_status</a></code>,
      <code><a href="rtslib.tcm.StorageObject-class.html#_get_udev_path" onclick="show_private();">_get_udev_path</a></code>,
      <code><a href="rtslib.tcm.StorageObject-class.html#_get_version" onclick="show_private();">_get_version</a></code>,
      <code><a href="rtslib.tcm.StorageObject-class.html#_get_wwn" onclick="show_private();">_get_wwn</a></code>,
      <code><a href="rtslib.tcm.StorageObject-class.html#_list_attached_luns" onclick="show_private();">_list_attached_luns</a></code>,
      <code><a href="rtslib.tcm.StorageObject-class.html#_parse_info" onclick="show_private();">_parse_info</a></code>,
      <code><a href="rtslib.tcm.StorageObject-class.html#_set_udev_path" onclick="show_private();">_set_udev_path</a></code>,
      <code><a href="rtslib.tcm.StorageObject-class.html#_set_wwn" onclick="show_private();">_set_wwn</a></code>,
      <code><a href="rtslib.tcm.StorageObject-class.html#_write_fd" onclick="show_private();">_write_fd</a></code>
      </p></div>
    <p class="indent-wrapped-lines"><b>Inherited from <code><a href="rtslib.node.CFSNode-class.html">node.CFSNode</a></code></b>:
      <code><a href="rtslib.node.CFSNode-class.html#get_attribute">get_attribute</a></code>,
      <code><a href="rtslib.node.CFSNode-class.html#get_parameter">get_parameter</a></code>,
      <code><a href="rtslib.node.CFSNode-class.html#list_attributes">list_attributes</a></code>,
      <code><a href="rtslib.node.CFSNode-class.html#list_parameters">list_parameters</a></code>,
      <code><a href="rtslib.node.CFSNode-class.html#set_attribute">set_attribute</a></code>,
      <code><a href="rtslib.node.CFSNode-class.html#set_parameter">set_parameter</a></code>
      </p>
    <div class="private">    <p class="indent-wrapped-lines"><b>Inherited from <code><a href="rtslib.node.CFSNode-class.html">node.CFSNode</a></code></b> (private):
      <code><a href="rtslib.node.CFSNode-class.html#_check_self" onclick="show_private();">_check_self</a></code>,
      <code><a href="rtslib.node.CFSNode-class.html#_create_in_cfs_ine" onclick="show_private();">_create_in_cfs_ine</a></code>,
      <code><a href="rtslib.node.CFSNode-class.html#_exists" onclick="show_private();">_exists</a></code>,
      <code><a href="rtslib.node.CFSNode-class.html#_get_path" onclick="show_private();">_get_path</a></code>,
      <code><a href="rtslib.node.CFSNode-class.html#_list_files" onclick="show_private();">_list_files</a></code>
      </p></div>
    <p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
      <code>__delattr__</code>,
      <code>__format__</code>,
      <code>__getattribute__</code>,
      <code>__hash__</code>,
      <code>__new__</code>,
      <code>__reduce__</code>,
      <code>__reduce_ex__</code>,
      <code>__setattr__</code>,
      <code>__sizeof__</code>,
      <code>__str__</code>,
      <code>__subclasshook__</code>
      </p>
    </td>
  </tr>
</table>
<!-- ==================== CLASS METHODS ==================== -->
<a name="section-ClassMethods"></a>
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         ><span class="options">[<a href="#section-ClassMethods"
         class="privatelink" onclick="toggle_private();"
         >hide private</a>]</span></td>
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  </td>
</tr>
  <tr>
    <td colspan="2" class="summary">
    <p class="indent-wrapped-lines"><b>Inherited from <code><a href="rtslib.tcm.StorageObject-class.html">StorageObject</a></code></b>:
      <code><a href="rtslib.tcm.StorageObject-class.html#all">all</a></code>,
      <code><a href="rtslib.tcm.StorageObject-class.html#so_from_path">so_from_path</a></code>
      </p>
    </td>
  </tr>
</table>
<!-- ==================== CLASS VARIABLES ==================== -->
<a name="section-ClassVariables"></a>
<table class="summary" border="1" cellpadding="3"
       cellspacing="0" width="100%" bgcolor="white">
<tr bgcolor="#70b0f0" class="table-header">
  <td colspan="2" class="table-header">
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        <td align="left"><span class="table-header">Class Variables</span></td>
        <td align="right" valign="top"
         ><span class="options">[<a href="#section-ClassVariables"
         class="privatelink" onclick="toggle_private();"
         >hide private</a>]</span></td>
      </tr>
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  </td>
</tr>
  <tr>
    <td colspan="2" class="summary">
    <p class="indent-wrapped-lines"><b>Inherited from <code><a href="rtslib.node.CFSNode-class.html">node.CFSNode</a></code></b>:
      <code><a href="rtslib.node.CFSNode-class.html#configfs_dir">configfs_dir</a></code>
      </p>
    </td>
  </tr>
</table>
<!-- ==================== PROPERTIES ==================== -->
<a name="section-Properties"></a>
<table class="summary" border="1" cellpadding="3"
       cellspacing="0" width="100%" bgcolor="white">
<tr bgcolor="#70b0f0" class="table-header">
  <td colspan="2" class="table-header">
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        <td align="left"><span class="table-header">Properties</span></td>
        <td align="right" valign="top"
         ><span class="options">[<a href="#section-Properties"
         class="privatelink" onclick="toggle_private();"
         >hide private</a>]</span></td>
      </tr>
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  </td>
</tr>
<tr>
    <td width="15%" align="right" valign="top" class="summary">
      <span class="summary-type">&nbsp;</span>
    </td><td class="summary">
        <a href="rtslib.tcm.BlockStorageObject-class.html#major" class="summary-name">major</a><br />
      Get the block device major number
    </td>
  </tr>
<tr>
    <td width="15%" align="right" valign="top" class="summary">
      <span class="summary-type">&nbsp;</span>
    </td><td class="summary">
        <a href="rtslib.tcm.BlockStorageObject-class.html#minor" class="summary-name">minor</a><br />
      Get the block device minor number
    </td>
  </tr>
<tr>
    <td width="15%" align="right" valign="top" class="summary">
      <span class="summary-type">&nbsp;</span>
    </td><td class="summary">
        <a href="rtslib.tcm.BlockStorageObject-class.html#size" class="summary-name">size</a><br />
      Get the block device size
    </td>
  </tr>
<tr>
    <td width="15%" align="right" valign="top" class="summary">
      <span class="summary-type">&nbsp;</span>
    </td><td class="summary">
        <a href="rtslib.tcm.BlockStorageObject-class.html#write_back" class="summary-name">write_back</a><br />
      True if write-back, False if write-through (write cache disabled)
    </td>
  </tr>
<tr>
    <td width="15%" align="right" valign="top" class="summary">
      <span class="summary-type">&nbsp;</span>
    </td><td class="summary">
        <a href="rtslib.tcm.BlockStorageObject-class.html#readonly" class="summary-name">readonly</a><br />
      True if the device is read-only, False if read/write
    </td>
  </tr>
  <tr>
    <td colspan="2" class="summary">
    <p class="indent-wrapped-lines"><b>Inherited from <code><a href="rtslib.tcm.StorageObject-class.html">StorageObject</a></code></b>:
      <code><a href="rtslib.tcm.StorageObject-class.html#attached_luns">attached_luns</a></code>,
      <code><a href="rtslib.tcm.StorageObject-class.html#name">name</a></code>,
      <code><a href="rtslib.tcm.StorageObject-class.html#status">status</a></code>,
      <code><a href="rtslib.tcm.StorageObject-class.html#udev_path">udev_path</a></code>,
      <code><a href="rtslib.tcm.StorageObject-class.html#version">version</a></code>,
      <code><a href="rtslib.tcm.StorageObject-class.html#wwn">wwn</a></code>
      </p>
    <p class="indent-wrapped-lines"><b>Inherited from <code><a href="rtslib.node.CFSNode-class.html">node.CFSNode</a></code></b>:
      <code><a href="rtslib.node.CFSNode-class.html#exists">exists</a></code>,
      <code><a href="rtslib.node.CFSNode-class.html#path">path</a></code>
      </p>
    <p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
      <code>__class__</code>
      </p>
    </td>
  </tr>
</table>
<!-- ==================== METHOD DETAILS ==================== -->
<a name="section-MethodDetails"></a>
<table class="details" border="1" cellpadding="3"
       cellspacing="0" width="100%" bgcolor="white">
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  <td colspan="2" class="table-header">
    <table border="0" cellpadding="0" cellspacing="0" width="100%">
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        <td align="left"><span class="table-header">Method Details</span></td>
        <td align="right" valign="top"
         ><span class="options">[<a href="#section-MethodDetails"
         class="privatelink" onclick="toggle_private();"
         >hide private</a>]</span></td>
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  </td>
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</table>
<a name="__init__"></a>
<div>
<table class="details" border="1" cellpadding="3"
       cellspacing="0" width="100%" bgcolor="white">
<tr><td>
  <table width="100%" cellpadding="0" cellspacing="0" border="0">
  <tr valign="top"><td>
  <h3 class="epydoc"><span class="sig"><span class="sig-name">__init__</span>(<span class="sig-arg">self</span>,
        <span class="sig-arg">name</span>,
        <span class="sig-arg">dev</span>=<span class="sig-default">None</span>,
        <span class="sig-arg">wwn</span>=<span class="sig-default">None</span>,
        <span class="sig-arg">readonly</span>=<span class="sig-default">False</span>,
        <span class="sig-arg">write_back</span>=<span class="sig-default">False</span>)</span>
    <br /><em class="fname">(Constructor)</em>
  </h3>
  </td><td align="right" valign="top"
    >&nbsp;
    </td>
  </tr></table>
  
  <p>A BlockIOStorageObject can be instantiated in two ways:</p>
  <ul>
    <li>
      <b>Creation mode</b>: If <i>dev</i> is specified, the underlying 
      configFS object will be created with that parameter. No 
      BlockIOStorageObject with the same <i>name</i> can pre-exist in the 
      parent Backstore in that mode.
    </li>
    <li>
      <b>Lookup mode</b>: If <i>dev</i> is not set, then the 
      BlockIOStorageObject will be bound to the existing configFS object in
      the parent Backstore having the specified <i>name</i>. The underlying
      configFS object must already exist in that mode, or instantiation 
      will fail.
    </li>
  </ul>
  <dl class="fields">
    <dt>Parameters:</dt>
    <dd><ul class="nomargin-top">
        <li><strong class="pname"><code>name</code></strong> (string) - The name of the BlockIOStorageObject.</li>
        <li><strong class="pname"><code>dev</code></strong> (string) - The path to the backend block device to be used.
          <ul>
            <li>
              Example: <i>dev=&quot;/dev/sda&quot;</i>.
            </li>
            <li>
              The only device type that is accepted <i>TYPE_DISK</i>. For 
              other device types, use pscsi.
            </li>
          </ul></li>
        <li><strong class="pname"><code>wwn</code></strong> (string) - T10 WWN Unit Serial, will generate if None</li>
    </ul></dd>
    <dt>Returns:</dt>
        <dd>A BlockIOStorageObject object.</dd>
    <dt>Overrides:
        object.__init__
    </dt>
  </dl>
</td></tr></table>
</div>
<a name="_configure"></a>
<div class="private">
<table class="details" border="1" cellpadding="3"
       cellspacing="0" width="100%" bgcolor="white">
<tr><td>
  <table width="100%" cellpadding="0" cellspacing="0" border="0">
  <tr valign="top"><td>
  <h3 class="epydoc"><span class="sig"><span class="sig-name">_configure</span>(<span class="sig-arg">self</span>,
        <span class="sig-arg">dev</span>,
        <span class="sig-arg">wwn</span>,
        <span class="sig-arg">readonly</span>)</span>
  </h3>
  </td><td align="right" valign="top"
    >&nbsp;
    </td>
  </tr></table>
  
  
  <dl class="fields">
    <dt>Overrides:
        <a href="rtslib.tcm.StorageObject-class.html#_configure" onclick="show_private();">StorageObject._configure</a>
    </dt>
  </dl>
</td></tr></table>
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<a name="dump"></a>
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       cellspacing="0" width="100%" bgcolor="white">
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  <tr valign="top"><td>
  <h3 class="epydoc"><span class="sig"><span class="sig-name">dump</span>(<span class="sig-arg">self</span>)</span>
  </h3>
  </td><td align="right" valign="top"
    >&nbsp;
    </td>
  </tr></table>
  
  
  <dl class="fields">
    <dt>Overrides:
        <a href="rtslib.node.CFSNode-class.html#dump">node.CFSNode.dump</a>
    </dt>
  </dl>
</td></tr></table>
</div>
<br />
<!-- ==================== PROPERTY DETAILS ==================== -->
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  <td colspan="2" class="table-header">
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<a name="major"></a>
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       cellspacing="0" width="100%" bgcolor="white">
<tr><td>
  <h3 class="epydoc">major</h3>
  <p>Get the block device major number</p>
  <dl class="fields">
    <dt>Get Method:</dt>
    <dd class="value"><span class="summary-sig"><a href="rtslib.tcm.BlockStorageObject-class.html#_get_major" class="summary-sig-name" onclick="show_private();">_get_major</a>(<span class="summary-sig-arg">self</span>)</span>
    </dd>
  </dl>
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<a name="minor"></a>
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       cellspacing="0" width="100%" bgcolor="white">
<tr><td>
  <h3 class="epydoc">minor</h3>
  <p>Get the block device minor number</p>
  <dl class="fields">
    <dt>Get Method:</dt>
    <dd class="value"><span class="summary-sig"><a href="rtslib.tcm.BlockStorageObject-class.html#_get_minor" class="summary-sig-name" onclick="show_private();">_get_minor</a>(<span class="summary-sig-arg">self</span>)</span>
    </dd>
  </dl>
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<a name="size"></a>
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       cellspacing="0" width="100%" bgcolor="white">
<tr><td>
  <h3 class="epydoc">size</h3>
  <p>Get the block device size</p>
  <dl class="fields">
    <dt>Get Method:</dt>
    <dd class="value"><span class="summary-sig"><a href="rtslib.tcm.BlockStorageObject-class.html#_get_size" class="summary-sig-name" onclick="show_private();">_get_size</a>(<span class="summary-sig-arg">self</span>)</span>
    </dd>
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<a name="write_back"></a>
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       cellspacing="0" width="100%" bgcolor="white">
<tr><td>
  <h3 class="epydoc">write_back</h3>
  <p>True if write-back, False if write-through (write cache disabled)</p>
  <dl class="fields">
    <dt>Get Method:</dt>
    <dd class="value"><span class="summary-sig"><a href="rtslib.tcm.BlockStorageObject-class.html#_get_wb_enabled" class="summary-sig-name" onclick="show_private();">_get_wb_enabled</a>(<span class="summary-sig-arg">self</span>)</span>
    </dd>
  </dl>
</td></tr></table>
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<a name="readonly"></a>
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       cellspacing="0" width="100%" bgcolor="white">
<tr><td>
  <h3 class="epydoc">readonly</h3>
  <p>True if the device is read-only, False if read/write</p>
  <dl class="fields">
    <dt>Get Method:</dt>
    <dd class="value"><span class="summary-sig"><a href="rtslib.tcm.BlockStorageObject-class.html#_get_readonly" class="summary-sig-name" onclick="show_private();">_get_readonly</a>(<span class="summary-sig-arg">self</span>)</span>
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