Oracle 816, Windows NT 4.0 SP6

I am new person over here. I was just going thru the alert logs etc.

I found this error in my ARCH.LOG file. This came long back in July.

The whole details from ARCH.LOG is as below :

Dump file L:\oracle\P62\saptrace\background\p62ARC1.TRC
Thu Jul 19 10:42:04 2001
ORACLE V8.1.6.1.0 - Production vsnsta=0
vsnsql=e vsnxtr=3
Windows NT Version 4.0 Service Pack 6, CPU type 586
Oracle8i Enterprise Edition Release 8.1.6.1.0 - Production
With the Partitioning option
JServer Release 8.1.6.0.0 - Production
Windows NT Version 4.0 Service Pack 6, CPU type 586
Instance name: p62

Redo thread mounted by this instance: 1

Oracle process number: 42

Windows thread id: 426, image: ORACLE.EXE


*** SESSION ID:(41.2735) 2001-07-19 10:42:04.887
***
Corrupt block relative dba: 0x00000262 file=0. blocknum=610.
Completely zero block found during controlfile block read
*** 2001-07-19 10:42:04.918



WHEN I LOOK AT THE SIDALRT.LOG I C Following :

Thu Jul 19 11:51:43 2001
Thread recovery: start rolling forward thread 1
Recovery of Online Redo Log: Thread 1 Group 12 Seq 2202 Reading mem 0
Mem# 0 errs 0: K:\ORACLE\P62\ORIGLOGB\LOG_G12M1.DBF
Mem# 1 errs 0: J:\ORACLE\P62\MIRRLOGB\LOG_G12M2.DBF
Thu Jul 19 11:51:43 2001
Thread recovery: finish rolling forward thread 1
Thread recovery: 0 data blocks read, 0 data blocks written, 0 redo blocks read
Crash recovery completed successfully
ARCH: Beginning to archive log# 13 seq# 2199
***
Corrupt block relative dba: 0x00000262 file=0. blocknum=610.
Completely zero block found during controlfile block read
ORA-227 signalled during: alter database open...
Thu Jul 19 11:51:45 2001
alter database open
ARCH: Beginning to archive log# 13 seq# 2199
***
Corrupt block relative dba: 0x00000262 file=0. blocknum=610.
Completely zero block found during controlfile block read
ORA-227 signalled during: alter database open...
Thu Jul 19 11:51:48 2001
alter database open
ARCH: Beginning to archive log# 13 seq# 2199
***
Corrupt block relative dba: 0x00000262 file=0. blocknum=610.
Completely zero block found during controlfile block read
ORA-227 signalled during: alter database open...
Thu Jul 19 11:51:52 2001




Please advise.