Oracle 8.1.7
Oracle Failsafe 3.1.2
Win 2K Advanced Server v5

I do a cold backup of our Production database every Sunday at 18:15. On two occasions we've had these errors in our alert log.

SMON: Restarting fast_start parallel rollback
ORACLE Instance evolvliv (pid = 6) - Error 376 encountered while recovering
transaction (4, 39) on object 4682.
Sun Aug 25 18:55:42 2002
Errors in file u:\Oracle\Admin\evolvliv\BDump\evolvlivSMON.TRC:
ORA-00376: file 5 cannot be read at this time
ORA-01110: data file 5: 'U:\ORACLE\ORADATA\EVOLVLIV\CL_IND01.DBF'
ORACLE Instance evolvliv (pid = 6) - Error 376 encountered while recovering
transaction (4, 49) on object 4682.
Sun Aug 25 18:55:42 2002
Errors in file u:\Oracle\Admin\evolvliv\BDump\evolvlivSMON.TRC:
ORA-00376: file 5 cannot be read at this time
ORA-01110: data file 5: 'U:\ORACLE\ORADATA\EVOLVLIV\CL_IND01.DBF'
SMON: ignoring slave err,downgrading to serial rollback

The event log also reports :

The node lost communication with cluster node 'svr114' on network Private network.

This seemed to have happened approx the same time as the cold backup.
This script takes it offline

REM Take the group offline
c:\oracle\ofs\fs\fsmgr\bin\fscmd offlineresource evolvliv /cluster=CLU103 /user=Cluster /pwd=PassWord1 /domain=firstdata /OFFLINE=IMMEDIATE

copy /Y U:\ORACLE\ORADATA\evolvliv\SYSTEM01.DBF v:\backup\cold

copy /Y U:\ORACLE\ORADATA\evolvliv\CL_RBS01.DBF v:\backup\cold

copy /Y U:\ORACLE\ORADATA\evolvliv\CL_TMP01.DBF v:\backup\cold

copy /Y U:\ORACLE\ORADATA\evolvliv\CL_DAT01.DBF v:\backup\cold

copy /Y U:\ORACLE\ORADATA\evolvliv\CL_IND01.DBF v:\backup\cold

copy /Y U:\ORACLE\ORADATA\evolvliv\CONTROL1.CTL v:\backup\cold

copy /Y U:\ORACLE\ORADATA\CONTROL2.CTL v:\backup\cold

copy /Y U:\ORACLE\CONTROL3.CTL v:\backup\cold
copy /Y U:\ORACLE\ADMIN\evolvliv\PFILE\INITevolvliv.ORA v:\backup\cold

exit

This brings it back online

REM Place the oracle resource back online.
c:\oracle\ofs\fs\fsmgr\bin\fscmd onlineresource evolvliv.firstdata.corp.fdrl.co.uk /cluster=CLU103 /user=Cluster /pwd=PassWord1 /domain=Firstdata

exit

Has anyone come across this error? Any suggestions/comments as to howmake sure the files are available for backup?