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

Don,
be sure that the file size ('i.e. lun size in your case), is an exact multiple of the block size.
I would suggest an exact multiple of 1M would do.

rgds

On Dec 26, 2007 9:32 PM, 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
>
>
>

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