In previous post I wrote about what will happen if the Citrix XenApp farm lost connection with its datastore. Well, because of Local Host Cache , users will still be able to access the applications without too much issue. But, what is Local Host Cache (LHC)? LHC is like a mini-DB of the farm, and created on all Citrix XenApp servers. Why I said mini-DB? It is because it contains a portion (subset) of Data Store information. There are 4 main information stored in the LHC : All servers in the farm, and their basic information. All applications published within the farm and their properties. All Windows network domain trust relationships within the farm. All information specific to itself. (Product code, SNMP settings, licensing information) There are 2 primary functions of LHC : Redundancy - a Citrix XenApp still function as normal if connection to datastore losts. Performance - LHC cache information used by ICA clients for enumeration and application resolution. By