Hi Arvind,
Please check:
http://help.sap.com/saphelp_sm71_sp05/helpdata/en/a5/971735dd184f5c8d943c6cf423d13a/content.htm
Read these links for LMDB
http://wiki.sdn.sap.com/wiki/pages/viewpage.action?pageId=250514114
https://service.sap.com/~sapidb/011000358700000074392009E/SP18_SolMan_Setup_Guide_V2.pdf
Thanks
Vikram