RE: Making OCR / VD Visible to BOTH DB Server (SUN) Nodes ... Basic Qs
- From: VIVEK_SHARMA <VIVEK_SHARMA@xxxxxxxxxxx>
- To: "oracle-l@xxxxxxxxxxxxx" <oracle-l@xxxxxxxxxxxxx>
- Date: Tue, 17 Jul 2007 21:23:56 +0530
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 1st 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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