Not able to start the HANA Server

Hi All,

Not able to start the HANA server , throws below error

StartService

OK

FAIL: Timeout

Starting instance using: /usr/sap/VI4/SYS/exe/hdb/sapcontrol -prot NI_HTTP -nr 04 -function StartWait 2700 2

20.07.2013 15:28:06

Start

FAIL: NIEHOST_UNKNOWN, NiRawConnect failed in plugin_fopen()

Thanks in Advance