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oracle rac raw device as shared storage [message #561611] Tue, 24 July 2012 04:27 Go to next message
mahekarthya
Messages: 1
Registered: July 2012
Location: bangalore
Junior Member
hi i m new to oracle rac,

and i wish to instlall 11g r1 RAC on my laptop having linux 4 as platform (on vmware) ,
for that i prepare 4 partition for that (on node1)

/dev/sdb1 - for ocr
/dev/sdb2 - for voting disk
/dev/sdb3 - for asmdisk group
/dev/sda5 - fro asmdisk group

by assuming external redundacy for ocr and voting disk i kept only one disk

and i configured following in /etc/sysconfig/rawdevices

/dev/raw/raw1 /dev/sdb1 -- ocr
/dev/raw/raw2 /dev/sdb2 -- voting disk
/dev/raw/raw3 /dev/sdb3 -- asmdisk group
/dev/raw/raw4 /dev/sdb5 -- asmdisk group


and my question is how node2 can understat these raw device as shared storage?

thanks for any support
Re: oracle rac raw device as shared storage [message #563769 is a reply to message #561611] Thu, 16 August 2012 23:12 Go to previous message
trantuananh24hg
Messages: 605
Registered: January 2007
Location: Ha Noi, Viet Nam
Senior Member
mahekarthya wrote on Tue, 24 July 2012 16:27
hi i m new to oracle rac,

and i wish to instlall 11g r1 RAC on my laptop having linux 4 as platform (on vmware) ,
for that i prepare 4 partition for that (on node1)

/dev/sdb1 - for ocr
/dev/sdb2 - for voting disk
/dev/sdb3 - for asmdisk group
/dev/sda5 - fro asmdisk group


What is Oracle version, RHEL x86_64 or x86?

Quote:

by assuming external redundacy for ocr and voting disk i kept only one disk


I do not understand the Bolid line, please re-write cleanly.

Quote:

and i configured following in /etc/sysconfig/rawdevices
/dev/raw/raw1 /dev/sdb1 -- ocr
/dev/raw/raw2 /dev/sdb2 -- voting disk
/dev/raw/raw3 /dev/sdb3 -- asmdisk group
/dev/raw/raw4 /dev/sdb5 -- asmdisk group


and my question is how node2 can understat these raw device as shared storage?
thanks for any support


According to Oracle (if I remember), at least 3 LUNs is used to ASM disk-group should be configured. I often device 4 LUNs in share-storage.
In your case, the RAC will be planed to install in Dev (one or 2 laptop), but what is the utility doing for share-storage? You may to search OpenFiler

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