Re: Making OCR / VD Visible to BOTH DB Server (SUN) Nodes ... Basic Qs
- From: "LS Cheng" <exriscer@xxxxxxxxx>
- To: VIVEK_SHARMA@xxxxxxxxxxx
- Date: Tue, 17 Jul 2007 19:46:05 +0200
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@xxxxxxxxxxx> 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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