In my cluster there are 10 Hosts having 50 EMC VNX data stores.Now 1-9 hosts are able to show all the data stores but the 10 host not able show all the data stores ,its showing only 40 data stores out of 50 data stores !. Why? and how show all the data stores to that 10 host in the cluster
1) Check at the storage level that all the LUN are presented to all your esx hosts.
2) Check at the switch level that all the Hosts are connected to the same controller and Zoning is done properly with all the ESX hosts.
3) Re-scan the storage at vsphere client level as some time it take time to reflect the LUN.