librenms-librenms/includes/polling/mempools/hpe-ilo.inc.php

<?php

$data = snmp_get_multi_oid($device, ['cpqHoPhysicalMemorySize.0', 'cpqHoPhysicalMemoryFree.0', 'cpqHoPagingMemorySize.0', 'cpqHoPagingMemoryFree.0'], '-OUQs', 'CPQHOST-MIB');
$units = 1024 * 1024;

if ($mempool['mempool_index'] == 0) {
    $mem_capacity = $data['cpqHoPhysicalMemorySize.0'];
    $mem_free = $data['cpqHoPhysicalMemoryFree.0'];

    $mempool['total'] = $mem_capacity * $units;
    $mempool['free'] = $mem_free * $units;
    $mempool['used'] = $mempool['total'] - $mempool['free'];
}

if ($mempool['mempool_index'] == 1) {
    $page_capacity = $data['cpqHoPagingMemorySize.0'];
    $page_free = $data['cpqHoPagingMemoryFree.0'];

    $mempool['total'] = $page_capacity * $units;
    $mempool['free'] = $page_free * $units;
    $mempool['used'] = $mempool['total'] - $mempool['free'];
}

unset(
    $mem_free,
    $mem_capacity,
    $page_free,
    $page_capacity
);