Re: ASM installation problems: re: Further adventures in the world of RAC

Two updates:

Oracle Support has responded rather quickly, so perhaps I may be able to get an answer through those channels first, for a pleasant change. =) Also, ASM on node1 mounted the disk fine, but node2 has the problem:

NODE1_SQL> select state,header_status,substr(name,1,12) Name,free_mb, substr(path,1,16) PATH from v$asm_disk;

STATE HEADER_STATU NAME FREE_MB PATH

-------- ------------ ------------ ---------- ----------------
NORMAL   PROVISIONED                        0 ORCL:VOLUME2
NORMAL   MEMBER       VOLUME1           34766 ORCL:VOLUME1

NODE2_SQL> select state,header_status,substr(name,1,12) Name,free_mb, substr(path,1,16) PATH from v$asm_disk;

STATE HEADER_STATU NAME FREE_MB PATH

-------- ------------ ------------ ---------- ----------------
NORMAL   UNKNOWN                            0 ORCL:VOLUME2
NORMAL   UNKNOWN                            0 ORCL:VOLUME1

It has been suggested that I try to drop and recreate the disks. I am willing to try it (because this is a new install), but will that mess things up for node1?

On 6/27/07, Charles Schultz <sacrophyte_at_gmail.com> wrote:
>
> I found Bill Wagman's thread<http://www.freelists.org/archives/oracle-l/04-2007/msg00205.html>to be quite interesting, especially since we are hitting a similar problem
> now. I filed the SR (6395660.992) first in the hopes that someone at
> Oracle Support will eventually get around to it. =)
>
> Hardware/software:
> RHEL4 (Nanant) running on 2 Dell 2950's, gigabit nic
> Stock Oracle 10.2.0.1 for clusterware and asm oracle home
>
> CRS install went just dandy, including all of K Gopal's suggest cluvfy
> steps. The ASM install was going nicely until I hit the DBCA, at which point
> the ASM instance on node 2 could not start because it could not mount the
> disks. After digging around and finding Varga's blog<http://blogs.oracle.com/AlejandroVargas/newsItems/viewFullItem$126>,
> I did some homework with my sysadmin and configured /etc/sysconfig/oracleasm
> to exclude the scsi drivers from our linux multipath ( not EMC PowerPath)
> scans. So, how do I get my ASM instance to mount the disks after solving
> that little riddle? I am looking through K Gopal's book (and now we have
> Julian Dyke's book as well); I am sure the answer is in there somewhere, but
> if someone wants to give me a little hint as to what page, that would be
> cool. *grin*
>
> For those interested in nitty-gritty details, here is the current error:
> SQL> ALTER DISKGROUP ALL MOUNT;
> ALTER DISKGROUP ALL MOUNT
> *
> ERROR at line 1:
> ORA-15032: not all alterations performed
> ORA-15063: ASM discovered an insufficient number of disks for diskgroup
> "DATA"
>
> From alert.log
> NOTE: cache registered group DATA number=1 incarn=0x0e9a9f02
> Wed Jun 27 17:08:20 2007
> ORA-15186: ASMLIB error function = [asm_open], error = [1], mesg =
> [Operation not permitted]
> Wed Jun 27 17:08:20 2007
> ORA-15186: ASMLIB error function = [asm_open], error = [1], mesg =
> [Operation not permitted]
> Wed Jun 27 17:08:20 2007
> ERROR: no PST quorum in group 1: required 2, found 0
> Wed Jun 27 17:08:20 2007
> NOTE: cache dismounting group 1/0x0E9A9F02 (DATA)
> NOTE: dbwr not being msg'd to dismount
> ERROR: diskgroup DATA was not mounted
>
> I have also looked at Metalink notes:
> *391136.1
> * *309815.1
> **353423.1 - this one might be helpful, but since node1 appears to be ok,
> I am not so sure about dropping the diskgroup
> * 398622.1 - I saw a reference for this, but cannot find the note itself.
>
> TIA. Hopefully, I am missing something obvious.
>
> --
> Charles Schultz

-- 
Charles Schultz

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