Error in Running Sum tool

Hello,

I am running SUM tool to upgrade sap netweaver 7.4 from SPS 05 to SPS 09.

I am getting following error:-

       Severe error(s) occurred in phase MAIN_SHDIMP/SUBMOD_SHDDEL2/SUBMOD_SHDALIASDEL_NORMAL/SCEXEC_DRSHDVIEWS!

Last error code set: Non single errors (code &gt; 8) found in logfile 'SQLEXEDV.LOG'<br/> 6 error during parallel execution of processes, check 'SQLEXEDV.LOG' for details<br/> 12 processes failed, check 'SCEXEC_D.*' for details    

ERROR:
Detected the following errors:

# E:\SUM\abap\log\PTALDV06.LOG:
3 ETQ398 SQL: DROP VIEW qgs_shd.[FOL_DET]
3 ETQ398 SQL: DROP VIEW qgs_shd.[GRAPH_TABL]
4 ETQ010 Date & Time: 20150423030146
1 ETQ000 ==================================================
4 ETQ010 Date & Time: 20150423030205
1EETQ008 Error message: DBSL error 99 (db code 64):
TCP Provider: The specified network name is no longer available.
1EETQ003 exit code: "12"

Please guide me.

Thanks and Regards,

Akshay