Re: RAC -- RAW Device Multipath (Shared Storage)

Known problem. ML Note 358617.1.
------------------------------
Cluvfy currently does not work with devices other than scsi devices.

So devices like emc powerpath, volume groups etc will fail when
checked using cluvfy for shared accessibility.
------------------------------

I usually check it manually - dd to it on one node and dd from it on
another and check that mapping is the same.

On 8/29/07, rama.ari@xxxxxxxxxxxxx <rama.ari@xxxxxxxxxxxxx> wrote:
>
>
>
>
> We are planning to setup RAC with two node on Redhat Linux. We want to use
> RAW devices with multipath using Hitachi 9970. We could see shared storage
> from both the nodes. Cluster Verify fails with following error message.
>
>
>
>  [oracle@soadbstg01 cluvfy]$ ./runcluvfy.sh comp ssa -n
> soadbstg01,soadbstg02
>
>  Verifying shared storage accessibility
>
>  Checking shared storage accessibility...
>
>  WARNING:
>  Unable to determine the sharedness of /dev/sda on nodes:
>  soadbstg02,soadbstg01
>
>  Shared storage check failed on nodes "soadbstg02,soadbstg01".
>  Oracle (cvuqdisk) is looking for /dev/sd* location. RAW Partitions are
> configured as /dev/oracleocr. Is there a way to bypass default location?
>
> /usr/sbin/cvuqdisk seems to look for /dev/sd*
>  trying to pass /dev/oracleocr/ocr01 doesn't seem to work.
>  Is there a way to pass an alternate device path?
>
>
>
> Thanks,
>
> Rama
>
>
>
>
>
>
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Alex Gorbachev, Oracle DBA Brewer, The Pythian Group
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