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can i just install CRS only If my OS is crash [message #562663]

Fri, 03 August 2012 04:34

x-oracle
Messages: 380
Registered: April 2011
Location: gujarat

Senior Member

Hello,

we have RAC database on two node here on windows server 2008 unfortunately today morning my one my one node os crash its on windows server 2008 my other node its working ok so my database is accessible so i just want to ask if i install again this os on node -1 system so i just want to install only again crs only.because my database is accessible through my other node-2

please help me out because i am new in rac so

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Re: can i just install CRS only If my OS is crash [message #562665 is a reply to message #562663]

Fri, 03 August 2012 04:50

John Watson
Messages: 8962
Registered: January 2010
Location: Global Village

Senior Member

I don't see why you would need to install anything. Just boot up the node. And fix the OS so that it doesn't "crash" (whatever that means) again.

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Re: can i just install CRS only If my OS is crash [message #562667 is a reply to message #562665]

Fri, 03 August 2012 05:08

x-oracle
Messages: 380
Registered: April 2011
Location: gujarat

Senior Member

actually when i try to upload some drives in this system this drivers are not installed successfully so i my system automatically crash and blue screen appear i cannot open this my os so i have to installed my os again may be so i just want to know if i again install os on this my node 1 server so i just only install crs only on node 1 server

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Re: can i just install CRS only If my OS is crash [message #562670 is a reply to message #562667]

Fri, 03 August 2012 05:17

John Watson
Messages: 8962
Registered: January 2010
Location: Global Village

Senior Member

It is a lot more complicated than that. You have to remove all references to the failed machine from the cluster, and then add the rebuilt machine to the cluster. This is not easy, and there is a real danger that you will break your one surviving node in the process.
I am sorry to say this, but you will probably not be able to do this yourself if you are, as you say, "new in rac". Better call in a consultant. And make sure s/he is a good one, preferably OCM, at least OCP with the RAC specialization.

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Re: can i just install CRS only If my OS is crash [message #562674 is a reply to message #562670]

Fri, 03 August 2012 05:59

x-oracle
Messages: 380
Registered: April 2011
Location: gujarat

Senior Member

i just again only new install os on my node 1 server after that i only install crs on this node 1 server so its possible to install

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Re: can i just install CRS only If my OS is crash [message #562675 is a reply to message #562674]

Fri, 03 August 2012 06:02

John Watson
Messages: 8962
Registered: January 2010
Location: Global Village

Senior Member

No, it isn't possible. Furthermore, if you try to do it, I think you will destroy your cluster. Totally. There are many shared objects in a cluster, you cannot work on one node without considering the other.

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Re: can i just install CRS only If my OS is crash [message #563768 is a reply to message #562675]

Thu, 16 August 2012 22:53

trantuananh24hg
Messages: 744
Registered: January 2007
Location: Ha Noi, Viet Nam

Senior Member

As JW said, you should invoke to real DBA rather than do it yourself.
Before the call finish to DBA, you should backup your Database by RMAN.

There are some solutions arround your crash node machine, however, you need to do backup database right now.

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