Shiva I didn't look this file and it has some errors details :"/home/oracle/product/10.2.0/log/hostname"> ls -tlr $ORACLE_HOME/log/hostname total 72 drwxrwx--- 2 oracle dba 4096 Apr 4 2006 cssd -rw-r--r-- 1 oracle dba 9334 Nov 6 17:18 alerthostname.log drwxrwx--- 2 oracle dba 45056 Nov 6 21:37 client <<<<<<<<<<<<This is excerpt from alerthostname.log>>>>>>>>>>>> 2006-11-06 15:24:29.675 [client(6555)]CRS-1006:The OCR location /home/oracle/product/10.2.0/cdata/localhost/local.ocr is inaccessible. Details in /home/oracle/product/10.2.0/log/hostname/client/clscfg_6555.log. 2006-11-06 15:24:29.736 [client(6555)]CRS-1001:The OCR was formatted using version 2. <<<<<<<this is clscfg_6555.lo>>>>>>>>>> Oracle Database 10g CRS Release 10.2.0.1.0 Production Copyright 1996, 2005 Oracle. All rights reserved. 2006-11-06 15:24:29.661: [ OCROSD][4143867584]utread:3: problem reading buffer 80e0000 buflen 512 retval 0 phy_offset 102400 retry 0 2006-11-06 15:24:29.661: [ OCROSD][4143867584]utread:4: problem reading the buffer errno 2 errstring No such file or directory 2006-11-06 15:24:29.661: [ OCROSD][4143867584]utread:3: problem reading buffer 80e2000 buflen 4096 retval 0 phy_offset 102400 retry 0 2006-11-06 15:24:29.661: [ OCROSD][4143867584]utread:4: problem reading the buffer errno 2 errstring No such file or directory 2006-11-06 15:24:29.661: [ OCRRAW][4143867584]propriogid:1: INVALID FORMAT 2006-11-06 15:24:29.661: [ OCROSD][4143867584]utread:3: problem reading buffer 80e2000 buflen 4096 retval 0 phy_offset 102400 retry 0 2006-11-06 15:24:29.661: [ OCROSD][4143867584]utread:4: problem reading the buffer errno 2 errstring No such file or directory 2006-11-06 15:24:29.677: [ OCRRAW][4143867584]ibctx:1:ERROR: INVALID FORMAT 2006-11-06 15:24:29.677: [ OCRRAW][4143867584]proprinit:problem reading the bootblock or superbloc 22 2006-11-06 15:24:29.677: [ default][4143867584]a_init:7!: Backend init unsuccessful : [22] 2006-11-06 15:24:29.677: [ OCROSD][4143867584]utread:3: problem reading buffer 80e2000 buflen 512 retval 0 phy_offset 102400 retry 0 2006-11-06 15:24:29.677: [ OCROSD][4143867584]utread:4: problem reading the buffer errno 2 errstring No such file or directory 2006-11-06 15:24:29.678: [ OCROSD][4143867584]utread:3: problem reading buffer 80e2000 buflen 4096 retval 0 phy_offset 102400 retry 0 2006-11-06 15:24:29.678: [ OCROSD][4143867584]utread:4: problem reading the buffer errno 2 errstring No such file or directory 2006-11-06 15:24:29.678: [ OCRRAW][4143867584]propriogid:1: INVALID FORMAT 2006-11-06 15:24:29.678: [ OCROSD][4143867584]utread:3: problem reading buffer 80e2000 buflen 4096 retval 0 phy_offset 102400 retry 0 2006-11-06 15:24:29.678: [ OCROSD][4143867584]utread:4: problem reading the buffer errno 2 errstring No such file or directory 2006-11-06 15:24:29.678: [ OCRRAW][4143867584]ibctx:1:ERROR: INVALID FORMAT 2006-11-06 15:24:29.678: [ OCRRAW][4143867584]proprinit:problem reading the bootblock or superbloc 22 2006-11-06 15:24:29.678: [ OCROSD][4143867584]utread:3: problem reading buffer 80e2000 buflen 512 retval 0 phy_offset 102400 retry 0 2006-11-06 15:24:29.678: [ OCROSD][4143867584]utread:4: problem reading the buffer errno 2 errstring No such file or directory 2006-11-06 15:24:29.678: [ OCROSD][4143867584]utread:3: problem reading buffer 80e2000 buflen 4096 retval 0 phy_offset 102400 retry 0 2006-11-06 15:24:29.678: [ OCROSD][4143867584]utread:4: problem reading the buffer errno 2 errstring No such file or directory 2006-11-06 15:24:29.678: [ OCRRAW][4143867584]propriogid:1: INVALID FORMAT 2006-11-06 15:24:29.700: [ OCRRAW][4143867584]propriowv: Vote information on disk 0 [/home/oracle/product/10.2.0/cdata/localhost/local.ocr] is adjusted from [0/0] to [2/2] 2006-11-06 15:24:29.736: [ OCRRAW][4143867584]propriniconfig:No 92 configuration 2006-11-06 15:24:29.736: [ OCRAPI][4143867584]a_init:6a: Backend init successful Shivaswamy Raghunath <shivaswamykr@xxxxxxxxx> wrote: Did you look at the log files in CRS_HOME/log/hostname/cssd? CRS_HOME/log/hostname/crsd? What do they say? can you post it? Shiva On 11/6/06, Sanjay Mishra <smishra_97@xxxxxxxxx> wrote: I am running single instance Oracle instance with ASM and getting few problems RHAT system crashed and when came back, I tried to start ASM instance I got error Connected to an idle instance. SQL> startup ORA-29701: unable to connect to Cluster Manager SQL> exit Disconnected I tried to start it using Superuser Root account $ su Password: # /etc/init.d/init.cssd start Startup will be queued to init within 90 seconds. # -ef|grep css root 6346 6290 0 15:19 pts/1 00:00:00 grep css It is still not back and I even tried init.cssd start/Manualstart Any suggestion as this happen few time and last time I used the following $ORACLE_HOME/bin/localconfig reset /home/oracle/10.2.0 TIA Sanjay --------------------------------- Sponsored Link Get an Online or Campus degree - Associate's, Bachelor's, or Master's - in less than one year. --------------------------------- Sponsored Link Get an Online or Campus degree - Associate's, Bachelor's, or Master's - in less than one year.