Re: ASM disks with UNKNOWN header status, can't create disk group

From: Don Seiler <don_at_seiler.us>
Date: Thu, 27 Dec 2007 08:44:18 -0600
Message-ID: <716f7a630712270644q3466dc4cr55e22a1fb7b8573a@mail.gmail.com>

This is not just a dbca/gui thing. I get the same error when running in sqlplus in the +ASM instance.

SQL> CREATE DISKGROUP dgroup1

  2      EXTERNAL REDUNDANCY
  3      DISK 'ORCL:VOL01','ORCL:VOL02';

CREATE DISKGROUP dgroup1
*
ERROR at line 1:
ORA-15018: diskgroup cannot be created
ORA-15072: command requires at least 1 failure groups, discovered only 0

Permissions look right. They are set by /etc/init.d/oracleasm.

$ ls -l /dev/oracleasm/disks/
total 0
brw-rw---- 1 oracle dba 8, 129 Dec 26 14:49 VOL01 brw-rw---- 1 oracle dba 8, 113 Dec 26 14:49 VOL02

Don.

On Dec 27, 2007 8:22 AM, Finn Jorgensen <finn.oracledba_at_gmail.com> wrote:
> Could this be just a dbca error? Have you tried creating the diskgroup by
> hand in your ASM instance? I have encountered all kinds of permissions
> issues and asmlib issues, but not something like this before.
>
> Finn
>
>
>
> On 12/26/07, Don Seiler <don_at_seiler.us> wrote:
> >
> >
> >
> > * Oracle 10.2.0.2 on RHEL4.
> > * We have two 900gb LUNs using RAID 10.
> > ** SysAdmin says no multipathing is involved. We do use Veritas DMP
> > elsewhere in the SAN, fwiw.
> >
> > Giving this crazy ASM fad another shot.
> >
> > We ran through "oracleasm configure" and "oracleasm createdisk" on
> > each of the two disks, with no problems. "oracleasm listdisks" lists
> > the two created volumes (VOL01 and VOL02) just fine. However when I
> > launch dbca to create the disk group, I get an ORA-15072 error.
> > Googling around led me to some forum posts about clashes with external
> > redundancy (which we're using) and multipathing (which we're not). I
> > also found this query, which I ran on our ASM instance:
> >
> > 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:VOL02
> > NORMAL UNKNOWN 0 ORCL:VOL01
> >
> > I'm open to any and all suggestions (regarding ASM, anyway).
> >
> > --
> > Don Seiler
> > http://seilerwerks.wordpress.com
> > ultimate: http://www.mufc.us
> >
> > --
> > http://www.freelists.org/webpage/oracle-l
> >
> >
> >
>
>

-- 
Don Seiler
http://seilerwerks.wordpress.com
ultimate: http://www.mufc.us
--
http://www.freelists.org/webpage/oracle-l

Received on Thu Dec 27 2007 - 08:44:18 CST