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Home -> Community -> Mailing Lists -> Oracle-L -> Further Questions re ASM and RAC
Greetings,
I am continuing to have difficulties getting ASM installed and configured in my two-node RAC cluster, Oracle 10.2.0.3.0 on RHEL3 and I am certain there is some very simple little bit which I am missing but I just can't figure this out.
I encountered difficulties with the ASM installation a couple of days ago and it was suggested that I uninstall everything and start all over again with CRS which I did. I installed CRS and began the installation of ASM. I configured the ASM instance using the installer. When it got to the point of creating a disk group I accepted what I thought was the default 'DATA' and continued but the installer said such a group already existed. That surprised me because I thought I had removed all traces by uninstalling, deleteing and dd on disks. Nevertheless, the install seemed ok, it just couldn't mount the disk groups. I went ahead, installed the 10.2.0.3.0 patch set and am now trying to get the dis groups mounted and here is what I find. First, there is a diskgroup but it is not mounted...
SQL> select * from v$asm_diskgroup;
GROUP_NUMBER NAME SECTOR_SIZE BLOCK_SIZEALLOCATION_UNIT_SIZE STATE
------------ ------------------------------ ----------- ---------- -------------------- ----------- TYPE TOTAL_MB FREE_MB REQUIRED_MIRROR_FREE_MB USABLE_FILE_MBOFFLINE_DISKS U
------ ---------- ---------- ----------------------- --------------------------- -
0 DATA 512 4096
1048576 DISMOUNTED
0 0 0 0
0 N
I can't mount it...
SQL> alter diskgroup data mount;
alter diskgroup data mount
*
ERROR at line 1:
ORA-15032: not all alterations performed
ORA-15063: ASM discovered an insufficient number of disks for diskgroup
"DATA"
I can't add a disk...
SQL> alter diskgroup data add disk '/dev/raw/raw3';
alter diskgroup data add disk '/dev/raw/raw3'
*
ERROR at line 1:
ORA-15032: not all alterations performed
ORA-15001: diskgroup "DATA" does not exist or is not mounted
Nor can I drop it...
SQL> drop diskgroup data including contents;
drop diskgroup data including contents
*
ERROR at line 1:
ORA-15039: diskgroup not dropped
ORA-15001: diskgroup "DATA" does not exist or is not mounted
So I tried to create a new disk group...
SQL> create diskgroup GROUP1 external redundancy
2 disk '/dev/raw/raw3';
create diskgroup GROUP1 external redundancy
*
ERROR at line 1:
ORA-15018: diskgroup cannot be created
ORA-15020: discovered duplicate ASM disk "DATA_0000"
But I don't see where that disk shows up...
SQL> select group_number,disk_number,name,path from v$asm_disk;
GROUP_NUMBER DISK_NUMBER NAME
------------ ----------- ------------------------------PATH
0 0
/dev/raw/raw4
0 1
/dev/raw/raw3
0 4
ORCL:VOL2
0 3
ORCL:VOL1
0 2
/dev/raw/raw2
The parameter asm_diskstring is not set but I don't know if that has anything to do with this. I'm completely stuck, I don't know what else to look at. I did configure the disks with oracleasm and I am pretty sure I did that part correctly. Sorry to keep bugging everyone with this but I'm completely stuck. I suspect it is something simple that I am just not seeing. If anyone can help me I would greatly appreciate it.
Thanks.
Bill Wagman
Univ. of California at Davis
IET Campus Data Center
wjwagman_at_ucdavis.edu
(530) 754-6208
-- http://www.freelists.org/webpage/oracle-lReceived on Fri Apr 06 2007 - 18:47:27 CDT
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