zfs.resource.recommended_zvol_blocksize
=======================================

Retrieve the recommended ``volblocksize`` for a new volume on the given pool.

The recommendation follows the widest data vdev of the pool, so a pool created with mismatched vdev geometry is sized for its largest one.

Get the block size for pool "tank":

.. code:: json

    {
        "jsonrpc": "2.0",
        "id": 1,
        "method": "zfs.resource.recommended_zvol_blocksize",
        "params": ["tank"]
    }

.. raw:: html

    <div id="json-schema">
    <span class="badge badge-dark value-type">Type: object</span><br/>
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    <h2 class="mb-0">
    <button aria-controls="Call_parameters" aria-expanded="" class="btn btn-link property-name-button" data-target="#Call_parameters" data-toggle="collapse" onclick="setAnchor('#Call_parameters')" type="button"><span class="property-name">Call parameters</span></button>
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    <div aria-labelledby="headingCall_parameters" class="collapse property-definition-div" data-parent="#accordionCall_parameters" id="Call_parameters">
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    <span class="badge badge-dark value-type">Type: array</span><br/>
    <span class="badge badge-info no-additional">No Additional Items</span><h4>Tuple Validation</h4>
    <h5>Parameter 1: pool</h5>
    <div class="card">
    <div class="card-body items-definition" id="Call_parameters_items_i0">
    <h4>pool</h4><span class="badge badge-dark value-type">Type: string</span><br/>
    <span class="description"><p>The pool name to get the recommended volume block size for.</p>
    </span>
    </div>
    </div>
    </div>
    </div>
    </div>
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    <div class="accordion" id="accordionReturn_value">
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    <button aria-controls="Return_value" aria-expanded="" class="btn btn-link property-name-button" data-target="#Return_value" data-toggle="collapse" onclick="setAnchor('#Return_value')" type="button"><span class="property-name">Return value</span></button>
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    <h4>Result</h4><span class="badge badge-dark value-type">Type: string</span><br/>
    <span class="description"><p>The recommended block size for volumes on this pool.</p>
    </span>
    </div>
    </div>
    </div>
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    </div><br><br>

*Required roles:* ZFS_RESOURCE_READ