IBM Support https://support.podc.sl.edst.ibm.com/support/home/
Servers Warranty Lookup https://datacentersupport.lenovo.com/my/en/systemxwarrantylookup
VMware Compatibility Guide https://www.vmware.com/resources/compatibility/search.php
IBM Dynamic System Analysis (DSA) https://support.lenovo.com/my/en/solutions/serv-dsa
IBM Products and Training Books http://www.redbooks.ibm.com/