Re: Making OCR / VD Visible to BOTH DB Server (SUN) Nodes ... Basic Qs

Hi

As long as they are raw devices and you have presented LUNs to both servers the can be seen from both nodes.

Nothing to do with Sun Cluster Setup, nothing to do with fancy vg* commands and your third option is totally out of topic!

Btw why you are always spamming with same mail? :-)

Thanks

--
LSC


On 7/17/07, VIVEK_SHARMA <VIVEK_SHARMA_at_infosys.com> wrote:


>

>  Folks

>

>

>

> How are the Oracle Cluster Registry (OCR) & Voting Disk (VD) device files

> to be Made Concurrently VISIBLE / Shareable to BOTH Database (Solaris 10)

> Nodes?

>

> Five RAW devices (2 OCR & 3 VD) of 200MB each were created only on the

> Node 1(Master node).

>

>

>

> Aim is to setup a 2 Node ASM RAC.

>

>

>

> Qs To make the OCR / VD devices visible to the Other / 2nd Node which of

> the following 3 Options is applicable:-

>

>    1. Solaris/SUN Cluster Setup needed on BOTH Nodes

>    2. Issue of some Solaris Commands (On HP-UX vgexport, vgimport

>    commands are used to export & import the respective raw devices from the 1

>    st node to the 2nd.)

>    3. CRS setup automatically make the OCR / VD devices created only on

>    the 1st (Master) Node visible to the 2nd Node without need for any

>    additional O.S. Commands

>

>

>

> NOTE – The Storage Box is connected to BOTH the Nodes thru a Switch.

>

> NOTE – External Redundancy to be used for ASM DB Setup.

>

>

>

> Cheers & Thanks

>

>

>

> Vivek

>

>

>

> P.S.

>

>

>

> Configuration:-

>

> Solaris 10

>

> Oracle 10gR2

>

>

>

> Following commands used for creation of OCR / VD device files only on the

> *1st (master) Node*:-

>

>

>

> Step 1 - Command for creating the Raw Devices

>

>

>

> dd if=/dev/zero of=/asmdata/voting/asm_vote1 bs=1k count=200000

>

> O/P

>

> 200000+0 records in

>

> 200000+0 records out

>

>

>

> Step 2 – Command for creating loop devices so that a character device can

> be associated with a file

>

>

>

> lofiadm -a /asmdata/voting/asm_vote1

>

> O/P: /dev/lofi/1

>

>

>

> Step 3 - Command for creating the respective character file to access the

> file

>

> mknod /asmdata/voting/vdiskvote1 c 147 1

>

>

>

>

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