diff --git a/emhttp/plugins/dynamix/ShareEdit.page b/emhttp/plugins/dynamix/ShareEdit.page
index 097bea59a..093ad9ff6 100644
--- a/emhttp/plugins/dynamix/ShareEdit.page
+++ b/emhttp/plugins/dynamix/ShareEdit.page
@@ -50,6 +50,12 @@ $pools = array_filter($pools, function($pool) {
 	return !isSubpool($pool);
 });
 
+/* Check for cachePool2 only which is a situation where the primary device is the cachePool2 device. */
+if ((! $share['cachePool']) && ($share['cachePool2'])) {
+	$share['cachePool']		= $share['cachePool2'];
+	$share['cachePool2']	= "";
+}
+
 /* Check for non existent pool device. */
 if ($share['cachePool'] && !in_array($share['cachePool'], $pools)) {
 	$poolDefined = false;
@@ -61,16 +67,16 @@ if ($share['cachePool'] && !in_array($share['cachePool'], $pools)) {
 
 /* Check for pool 2 (or array) being defined. */
 if ((($share['useCache'] == "yes") || ($share['useCache'] == "prefer")) && ($poolsOnly) && (!$share['cachePool2'])) {
-	$poolDefined2 = false;
-	$share['useCache'] = "yes";
+	$poolDefined2 = true;
+	$share['useCache'] = "only";
 } else if ($share['cachePool2']) {
 	$poolDefined2 = in_array($share['cachePool2'], $pools);
 } else {
 	$poolDefined2 = true;
 }
 
-$cachePoolCapitalized = ucfirst($share['cachePool']);
-$cachePoolCapitalized2 = $share['cachePool2'] ? ucfirst($share['cachePool2']) : _("Array");
+$cachePoolCapitalized = compress(my_disk($share['cachePool'],$display['raw']));
+$cachePoolCapitalized2 = $share['cachePool2'] ? compress(my_disk($share['cachePool2'],$display['raw'])) : _("Array");
 
 function globalInclude($name) {
   global $var;
diff --git a/emhttp/plugins/dynamix/ShareList.page b/emhttp/plugins/dynamix/ShareList.page
index 16d248725..b97e27954 100644
--- a/emhttp/plugins/dynamix/ShareList.page
+++ b/emhttp/plugins/dynamix/ShareList.page
@@ -18,7 +18,7 @@ Cond="_var($var,'fsState')!='Stopped' && _var($var,'shareUser')=='e'"
 <?
 /* Function to filter out unwanted disks, check if any valid disks exist, and ignore disks with a blank device. */
 function checkDisks($disks) {
-	global $pools, $poolsOnly;
+	global $pools;
 
 	$rc		= false;
 
@@ -35,9 +35,6 @@ function checkDisks($disks) {
 	return $rc;
 }
 
-/* If the configuration is pools only, then no array disks are available. */
-$poolsOnly	= ((int)$var['SYS_ARRAY_SLOTS'] <= 2) ? true : false;
-
 /* Are there any array disks? */
 $disks		= parse_ini_file('state/disks.ini',true) ?? [];
 $nodisks	= checkDisks($disks) ? "" : "disabled";
diff --git a/emhttp/plugins/dynamix/include/ShareList.php b/emhttp/plugins/dynamix/include/ShareList.php
index 10711adc2..a2c239563 100644
--- a/emhttp/plugins/dynamix/include/ShareList.php
+++ b/emhttp/plugins/dynamix/include/ShareList.php
@@ -130,7 +130,7 @@ uksort($shares,'strnatcasecmp');
 
 /* Function to filter out unwanted disks, check if any valid disks exist, and ignore disks with a blank device. */
 function checkDisks($disks) {
-	global $pools, $poolsOnly;
+	global $pools;
 
 	$rc		= false;
 
@@ -149,112 +149,177 @@ function checkDisks($disks) {
 
 // Display export settings
 function user_share_settings($protocol,$share) {
-  if (empty($share)) return;
-  if ($protocol!='yes' || $share['export']=='-') return "-";
-  return ($share['export']=='e') ? _(ucfirst($share['security'])) : '<em>'._(ucfirst($share['security'])).'</em>';
+	if (empty($share)) return;
+	if ($protocol!='yes' || $share['export']=='-') return "-";
+	return ($share['export']=='e') ? _(ucfirst($share['security'])) : '<em>'._(ucfirst($share['security'])).'</em>';
 }
 function globalInclude($name) {
-  global $var;
-  return substr($name,0,4)!='disk' || !$var['shareUserInclude'] || strpos("{$var['shareUserInclude']},","$name,")!==false;
+	global $var;
+	return substr($name,0,4)!='disk' || !$var['shareUserInclude'] || strpos("{$var['shareUserInclude']},","$name,")!==false;
 }
 function shareInclude($name) {
-  global $include;
-  return !$include || substr($name,0,4)!='disk' || strpos("$include,", "$name,")!==false;
+	global $include;
+	return !$include || substr($name,0,4)!='disk' || strpos("$include,", "$name,")!==false;
 }
 // Compute user shares & check encryption
 $crypto = false;
 foreach ($shares as $name => $share) {
-  if ($all!=0 && (!$compute || $compute==$name)) exec("$docroot/webGui/scripts/share_size ".escapeshellarg($name)." ssz1 ".escapeshellarg($pools));
-  $crypto |= _var($share,'luksStatus',0)>0;
+	if ($all!=0 && (!$compute || $compute==$name)) exec("$docroot/webGui/scripts/share_size ".escapeshellarg($name)." ssz1 ".escapeshellarg($pools));
+	$crypto |= _var($share,'luksStatus',0)>0;
 }
 // global shares include/exclude
 $myDisks = array_filter(array_diff(array_keys($disks), explode(',',$var['shareUserExclude'])), 'globalInclude');
 
 // Share size per disk
 $ssz1 = [];
-if ($all==0)
-  exec("rm -f /var/local/emhttp/*.ssz1");
-else
-  foreach (glob("state/*.ssz1",GLOB_NOSORT) as $entry) $ssz1[basename($entry,'.ssz1')] = parse_ini_file($entry);
+if ($all==0) {
+	exec("rm -f /var/local/emhttp/*.ssz1");
+} else {
+	foreach (glob("state/*.ssz1",GLOB_NOSORT) as $entry) $ssz1[basename($entry,'.ssz1')] = parse_ini_file($entry);
+}
+
+/* Define constants for magic strings */
+define('STATUS_GREEN_ON', 'green-on');
+define('STATUS_YELLOW_ON', 'yellow-on');
+define('LUKS_STATUS_UNKNOWN', 0);
+define('LUKS_STATUS_ENCRYPTED', 1);
+define('LUKS_STATUS_UNENCRYPTED', 2);
 
 // Build table
 $row = 0;
 foreach ($shares as $name => $share) {
-	/* Check if poolsOnly is true */
-	$array	= $share['cachePool2'] ? ucfirst($share['cachePool2']) : "<i class='fa fa-database fa-fw'></i>"._('Array');
+	/* Is cachePool2 defined? If it is we need to show the cache pool 2 device name instead of 'Array'. */
+	if ($share['cachePool2']) {
+		$array		= compress(my_disk($share['cachePool2'],$display['raw']));
+		$indicator	= "<i class='fa fa-bullseye fa-fw'></i>";
+	} else {
+		$array		= _('Array');
+		$indicator	= "<i class='fa fa-database fa-fw'></i>";
+	}
+
+	/* Check that the share storage assignments are valid. */
+	if (($share['cachePool']) && (! in_array($share['cachePool'], $pools_check))) {
+		$array			= compress(my_disk($share['cachePool'],$display['raw']));
+		$indicator	= "<i class='fa fa-bullseye fa-fw'></i>";
+		$share_valid	= false;
+	} else if (($share['cachePool2']) && (! in_array($share['cachePool2'], $pools_check))) {
+		$array			= compress(my_disk($share['cachePool2'],$display['raw']));
+		$indicator	= "<i class='fa fa-bullseye fa-fw'></i>";
+		$share_valid	= false;
+	} else if (($poolsOnly) && (! $share['cachePool']) && (! $share['cachePool2'])) {
+		$share_valid	= false;
+	} else {
+		/* Is the share exclusive? */
+	    $exclusive = _var($share, 'exclusive') == 'yes' ? "<i class='fa fa-caret-right '></i> " : "";
+		$share_valid	= true;
+	}
+
+	/* Check if poolsOnly is true. */
 	if ($poolsOnly) {
-		/* If useCache is set to 'yes', change it to 'no'. */
-		if (($share['useCache'] == 'yes') && (!$share['cachePool2'])) {
-			$share['useCache'] = 'no';
-		}
-		/* If useCache is set to 'prefer', change it to 'only'. */
-		if (($share['useCache'] == 'prefer') && (!$share['cachePool2'])) {
+		/* If useCache is set to 'yes' or 'prefer', change it to 'only'. */
+		if ((($share['useCache'] == 'yes') || ($share['useCache'] == 'prefer')) && (!$share['cachePool2'])) {
 			$share['useCache'] = 'only';
 		}
 	}
 
-  $row++;
-  $color = $share['color'];
-  switch ($color) {
-    case 'green-on' : $orb = 'circle'; $color = 'green'; $help = _('All files protected'); break;
-    case 'yellow-on': $orb = 'warning'; $color = 'yellow'; $help = _('Some or all files unprotected'); break;
-  }
-  if ($crypto) switch ($share['luksStatus']) {
-    case 0: $luks = "<i class='nolock fa fa-lock'></i>"; break;
-    case 1: $luks = "<a class='info' onclick='return false'><i class='padlock fa fa-unlock-alt green-text'></i><span>"._('All files encrypted')."</span></a>"; break;
-    case 2: $luks = "<a class='info' onclick='return false'><i class='padlock fa fa-unlock-alt orange-text'></i><span>"._('Some or all files unencrypted')."</span></a>"; break;
-   default: $luks = "<a class='info' onclick='return false'><i class='padlock fa fa-lock red-text'></i><span>"._('Unknown encryption state')."</span></a>"; break;
-  } else $luks = "";
-  echo "<tr><td><a class='view' href=\"/$path/Browse?dir=/mnt/user/",rawurlencode($name),"\"><i class=\"icon-u-tab\" title=\"",_('Browse')," /mnt/user/".rawurlencode($name),"\"></i></a>";
-  echo "<a class='info nohand' onclick='return false'><i class='fa fa-$orb orb $color-orb'></i><span style='left:18px'>$help</span></a>$luks<a href=\"/$path/Share?name=";
-  echo rawurlencode($name),"\" onclick=\"$.cookie('one','tab1')\">$name</a></td>";
-  echo "<td>{$share['comment']}</td>";
-  echo "<td>",user_share_settings($var['shareSMBEnabled'], $sec[$name]),"</td>";
-  echo "<td>",user_share_settings($var['shareNFSEnabled'], $sec_nfs[$name]),"</td>";
+	$row++;
+	$color = $share['color'] ?? '';
+	$orb = '';
+	$help = '';
 
-  // Check for non existent pool device
-  if (isset($share['cachePool']) && !in_array($share['cachePool'], $pools_check)) $share['useCache'] = "no";
+	switch ($color) {
+		case STATUS_GREEN_ON:
+			$orb = 'circle';
+			$color = 'green';
+			$help = _('All files protected');
+			break;
+		case STATUS_YELLOW_ON:
+			$orb = 'warning';
+			$color = 'yellow';
+			$help = _('Some or all files unprotected');
+			break;
+		default:
+			/* Handle unexpected color values */
+			$orb = 'question';
+			$color = 'grey';
+			$help = _('Unknown protection status');
+			break;
+	}
 
-  switch ($share['useCache']) {
-  case 'no':
-    $cache = "<a class='hand info none' onclick='return false'><i class='fa fa-database fa-fw'></i>"._('Array')."<span>".sprintf(_('Primary storage %s'),_('Array'))."</span></a>";
-    break;
-  case 'yes':
-    $cache = "<a class='hand info none' onclick='return false'><i class='fa fa-bullseye fa-fw'></i>".compress(my_disk($share['cachePool'],$display['raw']))." <i class='fa fa-long-arrow-right fa-fw'></i>".$array."<span>"._('Primary storage to Secondary storage')."</span></a>";
-    break;
-  case 'prefer':
-    $cache = "<a class='hand info none' onclick='return false'><i class='fa fa-bullseye fa-fw'></i>".compress(my_disk($share['cachePool'],$display['raw']))." <i class='fa fa-long-arrow-left fa-fw'></i>".$array."<span>"._('Secondary storage to Primary storage')."</span></a>";
-    break;
-  case 'only':
-    $exclusive = isset($share['exclusive']) && $share['exclusive']=='yes' ? "<i class='fa fa-caret-right '></i> " : "";
-    $cache = "<a class='hand info none' onclick='return false'><i class='fa fa-bullseye fa-fw'></i>$exclusive".my_disk($share['cachePool'],$display['raw'])."<span>".sprintf(_('Primary storage %s'),$share['cachePool']).($exclusive ? ", "._('Exclusive access') : "")."</span></a>";
-    break;
-  }
-  if (array_key_exists($name,$ssz1)) {
-    echo "<td>$cache</td>";
-    echo "<td>",my_scale($ssz1[$name]['disk.total'], $unit)," $unit</td>";
-    echo "<td>",my_scale($share['free']*1024, $unit)," $unit</td>";
-    echo "</tr>";
-    foreach ($ssz1[$name] as $diskname => $disksize) {
-      if ($diskname=='disk.total') continue;
-      $include = $share['include'];
-      $inside = in_array($diskname, array_filter(array_diff($myDisks, explode(',',$share['exclude'])), 'shareInclude'));
-      echo "<tr class='",($inside ? "'>" : "warning'>");
-      echo "<td><a class='view'></a><a href='#' title='",_('Recompute'),"...' onclick=\"computeShare('",rawurlencode($name),"',$(this).parent())\"><i class='fa fa-refresh icon'></i></a>&nbsp;",_(my_disk($diskname,$display['raw']),3),"</td>";
-      echo "<td>",($inside ? "" : "<em>"._('Share is outside the list of designated disks')."</em>"),"</td>";
-      echo "<td></td>";
-      echo "<td></td>";
-      echo "<td></td>";
-      echo "<td>",my_scale($disksize, $unit)," $unit</td>";
-      echo "<td>",my_scale($disks[$diskname]['fsFree']*1024, $unit)," $unit</td>";
-      echo "</tr>";
-    }
-  } else {
-    echo "<td>$cache</td>";
-    echo "<td><a href='#' onclick=\"computeShare('",rawurlencode($name),"',$(this))\">",_('Compute'),"...</a></td>";
-    echo "<td>",my_scale($share['free']*1024, $unit)," $unit</td>";
-    echo "</tr>";
-  }
+	$luks = '';
+	if ($crypto) {
+		switch ($share['luksStatus'] ?? LUKS_STATUS_UNKNOWN) {
+			case LUKS_STATUS_UNKNOWN:
+				$luks = "<i class='nolock fa fa-lock'></i>";
+				break;
+			case LUKS_STATUS_ENCRYPTED:
+				$luks = "<a class='info' onclick='return false'><i class='padlock fa fa-unlock-alt green-text'></i><span>"._('All files encrypted')."</span></a>";
+				break;
+			case LUKS_STATUS_UNENCRYPTED:
+				$luks = "<a class='info' onclick='return false'><i class='padlock fa fa-unlock-alt orange-text'></i><span>"._('Some or all files unencrypted')."</span></a>";
+				break;
+			default:
+				$luks = "<a class='info' onclick='return false'><i class='padlock fa fa-lock red-text'></i><span>"._('Unknown encryption state')."</span></a>";
+				break;
+		}
+	}
+
+	echo "<tr><td><a class='view' href=\"/$path/Browse?dir=/mnt/user/", rawurlencode($name), "\"><i class=\"icon-u-tab\" title=\"", _('Browse'), " /mnt/user/" . rawurlencode($name), "\"></i></a>";
+	echo "<a class='info nohand' onclick='return false'><i class='fa fa-$orb orb $color-orb'></i><span style='left:18px'>$help</span></a>$luks<a href=\"/$path/Share?name=";
+	echo rawurlencode($name), "\" onclick=\"$.cookie('one','tab1')\">$name</a></td>";
+	echo "<td>{$share['comment']}</td>";
+	echo "<td>", user_share_settings($var['shareSMBEnabled'], $sec[$name]), "</td>";
+	echo "<td>", user_share_settings($var['shareNFSEnabled'], $sec_nfs[$name]), "</td>";
+
+	/* If the share pool or array is not valid, indicate that to the user. */
+	if (!$share_valid) {
+		$cache = "<a class='hand info none' onclick='return false'>".$indicator." <i class='fa fa-warning red-orb'></i> ".$array."<span>"._('This share is invalid').'; '. _('It references storage that does not exist')."</span></a>";
+	} else {
+		switch ($share['useCache']) {
+			case 'no':
+				$cache = "<a class='hand info none' onclick='return false'>".$indicator.$exclusive.$array."<span>".sprintf(_('Primary storage %s'), $array)."</span></a>";
+				break;
+			case 'yes':
+				$cache = "<a class='hand info none' onclick='return false'><i class='fa fa-bullseye fa-fw'></i>".compress(my_disk($share['cachePool'], $display['raw']))." <i class='fa fa-long-arrow-right fa-fw'></i>".$indicator.$array."<span>"._('Primary storage to Secondary storage')."</span></a>";
+				break;
+			case 'prefer':
+				$cache = "<a class='hand info none' onclick='return false'><i class='fa fa-bullseye fa-fw'></i>".compress(my_disk($share['cachePool'], $display['raw']))." <i class='fa fa-long-arrow-left fa-fw'></i>".$indicator.$array."<span>"._('Secondary storage to Primary storage')."</span></a>";
+				break;
+			case 'only':
+				$cache = "<a class='hand info none' onclick='return false'><i class='fa fa-bullseye fa-fw'></i>$exclusive".my_disk($share['cachePool'], $display['raw'])."<span>".sprintf(_('Primary storage %s'), $share['cachePool']).($exclusive ? ", "._('Exclusive access') : "")."</span></a>";
+				break;
+			default:
+				/* Handle unexpected useCache values */
+				$cache = "<a class='hand info none' onclick='return false'>". $indicator . $array . "<span>"._('Unknown cache usage')."</span></a>";
+				break;
+		}
+	}
+
+	if (array_key_exists($name, $ssz1)) {
+		echo "<td>$cache</td>";
+		echo "<td>", my_scale($ssz1[$name]['disk.total'], $unit), " $unit</td>";
+		echo "<td>", my_scale($share['free'] * 1024, $unit), " $unit</td>";
+		echo "</tr>";
+		foreach ($ssz1[$name] as $diskname => $disksize) {
+			if ($diskname == 'disk.total') continue;
+			$include = $share['include'];
+			$inside = in_array($diskname, array_filter(array_diff($myDisks, explode(',', $share['exclude'])), 'shareInclude'));
+			echo "<tr class='", ($inside ? "'>" : "warning'>");
+			echo "<td><a class='view'></a><a href='#' title='", _('Recompute'), "...' onclick=\"computeShare('", rawurlencode($name), "',$(this).parent())\"><i class='fa fa-refresh icon'></i></a>&nbsp;", _(my_disk($diskname, $display['raw']), 3), "</td>";
+			echo "<td>", ($inside ? "" : "<em>"._('Share is outside the list of designated disks')."</em>"), "</td>";
+			echo "<td></td>";
+			echo "<td></td>";
+			echo "<td></td>";
+			echo "<td>", my_scale($disksize, $unit), " $unit</td>";
+			echo "<td>", my_scale($disks[$diskname]['fsFree'] * 1024, $unit), " $unit</td>";
+			echo "</tr>";
+		}
+	} else {
+		echo "<td>$cache</td>";
+		echo "<td><a href='#' onclick=\"computeShare('", rawurlencode($name), "',$(this))\">", _('Compute'), "...</a></td>";
+		echo "<td>", my_scale($share['free'] * 1024, $unit), " $unit</td>";
+		echo "</tr>";
+	}
 }
 if ($row==0) echo $noshares;
 ?>