Re: No records in v$asm_disk

The one thing in your explanation that stood out to me was the part about the multipath. When I did this I used EMC powerpath and I specifically DID NOT use the powerpath device as the disk device. This caused problems. Even when you use the regular device it still uses the multipathing.

Another thing is not to allow ASMLIB to reset permissions on reboots. This caused a lot of headaches for me.

Did you run */etc/init.d/oracleasm listdisks* and did that list all the disks?

Finally, I would recommend setting up 1 node first as a single node cluster and then bringing the second node in after the first is all up and running with CRS/ASM/RAC db etc.

Finn

On 11/8/07, Brian Lucas <moabrivers_at_gmail.com> wrote:
>
> All, I've been reading through the forums and metalink looking for
> this particular problem but haven't been able to find the answer. I
> have 2 nodes (OEL 5) multipathed to our backend storage. Both nodes
> are configured with asmlib and the CRS daemons are installed and
> running great on them. The whole setup is 10g release 2.
>
> Prior to disk creation, I set the ORACLEASM_SCANORDER in
> /etc/sysconfig/oracleasm and added "multipath dm" to it. I even added
> "sd" to ORACLEASM_SCANEXCLUDE so that all scans happen on the
> multipath channel.
>
> I then create the disk with the following (I have tested this from
> both node1 and node2).
>
> #service oracleasm createdisk TESTDATA /dev/dm-4
>
> Scanning the asm disks on both nodes as root successfully shows the
> TESTDATA asm disk (service oracleasm scandisks followed by service
> oracleasm listdisks).
>
> On node1, querying v$asm_disk shows TESTDATA provisioned and ready to
> go. Node2 never shows it. I have added ORCL:* to the asm_diskstring
> and bounced the instance on node2 but to no avail.
>
> I have blown away the configuration, zeroed out the underlying
> storage, and started fresh but I get the same results.
>
> Here's the SQL output from node2.
>
>
> SQL> show parameter asm
>
> NAME TYPE VALUE
> ------------------------------------ -----------
> ------------------------------
> asm_diskgroups string
> asm_diskstring string ORCL:*
> asm_power_limit integer 1
> SQL> select * from v$asm_disk;
>
> no rows selected
>
> SQL>
>
>
> If I query /dev/oracleasm/disks, I do see the TESTDATA disk owned by
> oracle:dba on both nodes.
>
> Can anyone point me in a direction I haven't tried?
>
> Thanks!
>
> Brian
> --
> http://www.freelists.org/webpage/oracle-l
>
>
>

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