Sample Splunk Query
index="lamaxu" sourcetype="qmstatus_json" "identifier.dataType"=CHANNEL_STATUS "attributes.CHANNEL"!=SYSTEM.*|rename identifier.dataSource as qmgrName|rename attributes.CHANNEL as channelName|rename attributes.CONNS as connections |eval objName="(CONNS=".connections.") (".qmgrName.") ".channelName|chart useother=f max(connections) BY objName limit=1000
Sample Dashboard

Sample Dashboard Source
<dashboard>
<label>Channel Connection Count</label>
<row>
<panel>
<title>Channel Connection Count</title>
<single>
<title>Channel Connection Count</title>
<search>
<query>index="lamaxu" sourcetype="qmstatus_json" "identifier.dataType"=CHANNEL_STATUS "attributes.CHANNEL"!=SYSTEM.*|rename identifier.dataSource as qmgrName|rename attributes.CHANNEL as channelName|rename attributes.CONNS as connections |eval objName="(CONNS=".connections.") (".qmgrName.") ".channelName|chart useother=f max(connections) BY objName limit=1000</query>
<earliest>rt-5m</earliest>
<latest>rt</latest>
<sampleRatio>1</sampleRatio>
</search>
<option name="colorMode">block</option>
<option name="drilldown">all</option>
<option name="height">581</option>
<option name="rangeColors">["0xd93f3c","0x65a637"]</option>
<option name="rangeValues">[0]</option>
<option name="refresh.display">progressbar</option>
<option name="trellis.enabled">1</option>
<option name="trellis.scales.shared">0</option>
<option name="trellis.size">small</option>
<option name="underLabel">Connection Count</option>
<option name="useColors">1</option>
</single>
</panel>
</row>
</dashboard>