RE: 12c Install on Linux RedHat 6.

From: Nabil M. Jamaleddin <nmjamaleddin_at_multiservice.com>
Date: Mon, 2 May 2016 15:11:56 +0000
Message-ID: <SN1PR01MB1951FF9FC68B3B2741563D29AB790_at_SN1PR01MB1951.prod.exchangelabs.com>


“instead (ie. eth0:0 and eth0:1), which is wrong” I understand that this is not preferred but this is just a test system to be built then ripped apart. This is how I have RAC 11g on RedHat 5 built. They build without problems.

This is 12c on RedHat 6 and does not take etho0:1 like I have been doing.

I did run CVU and it seems CVU is seeing the private network. If the requirements have changed and I need to make the private eth1 then I can request network to do that, but they will push back and make me explain why it’s been working for years on RH5 with 11g.

Any thoughts would be very much appreciated and thank you very much for your time.

Verification of the hosts config file successful

Node connectivity passed for subnet "172.xx.xx.0" with node(s) node1, node2 TCP connectivity check passed for subnet "172.xx.xx.0"

Node connectivity passed for subnet "192.168.xx.0" with node(s) node1, node2 TCP connectivity check passed for subnet "192.168.xx.0"

Interfaces found on subnet "172.xx.xx.0" that are likely candidates for VIP are: node1 eth0:172.xx.xx.39
node2 eth0:172.xx.xx.40

Interfaces found on subnet "192.168.xx.0" that are likely candidates for a private interconnect are: node1 eth0:192.168.xx.39
node2 eth0:192.168.xx.40

Checking subnet mask consistency...
Subnet mask consistency check passed for subnet "172.xx.xx.0". Subnet mask consistency check passed for subnet "192.168.xx.0". Subnet mask consistency check passed.

Node connectivity check passed

Checking multicast communication...

Checking subnet "172.xx.xx.0" for multicast communication with multicast group "224.0.0.251"... Check of subnet "172.xx.xx.0" for multicast communication with multicast group "224.0.0.251" passed.

Check of multicast communication passed.

From: Justin Mungal [mailto:justin_at_n0de.ws] Sent: Friday, April 29, 2016 7:11 PM
To: Nabil M. Jamaleddin
Cc: oracle-l_at_freelists.org
Subject: Re: 12c Install on Linux RedHat 6.

If they are separate interfaces, ie. eth0 and eth1, the installer should see them. From your initial email I suspect you're using sub-interfaces instead (ie. eth0:0 and eth0:1), which is wrong. T

hey must have the same name on each node as well, such as having both private interfaces named eth0.

Don't forget about running CVU.

-Justin

On Friday, April 29, 2016, Nabil M. Jamaleddin <nmjamaleddin_at_multiservice.com<mailto:nmjamaleddin_at_multiservice.com>> wrote: Justin,

Thanks for the input.

Yes private and public addresses are assigned on separate network interfaces. Yes different network segments

But even if they were the same would they not show up anyway during the install process? The interface I want to use as private does not show up at all. How is the installer missing this?

Thanks

From: Justin Mungal [mailto:justin_at_n0de.ws] Sent: Friday, April 29, 2016 2:04 PM
To: Nabil M. Jamaleddin
Cc: oracle-l_at_freelists.org<mailto:oracle-l_at_freelists.org> Subject: Re: 12c Install on Linux RedHat 6.

Make sure your private and public addresses are assigned to separate network interfaces, and that those interfaces are on different network segments. You might also want to run the CVU to see if it finds any problems with the configuration.

-Justin

On Fri, Apr 29, 2016 at 11:34 AM, Nabil M. Jamaleddin <nmjamaleddin_at_multiservice.com<mailto:nmjamaleddin_at_multiservice.com>> wrote:

I am in the process of installing 12.1.0.2 on RedHat version 6.

I am installing Grid and I am in the Network Interface Usage screen in the installer.

I see eth0 my subnet and use for as public.

What I don’t see is

Eth0 192.xx.xx.xx.0 Private

The only interface the installer detects is my public interface. Why can’t I get the private interface to show?

I have this in my /etc/hosts for both nodes

192.192.111.18          node1.build-private.com<http://node1.build-private.com>
192.192.111.17          node2.build-private.com<http://node2.build-private.com>

Ifconfig –a shows the configuration

eth0:1 Link encap:Ethernet HWaddr 00:XX:XX:XX:XX:XX

          inet addr: 192.192.111.18 Bcast: 192.192.111.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1



I did change the names and ip address for security purposes.

But my /etc/hosts and ifconfig seem to check out on both nodes.

Thoughts?

  • This email is intended solely for the use of the addressee and may contain information that is confidential, proprietary, or both. If you receive this email in error please immediately notify the sender and delete the email. -------------------------------------------------------
  • This email is intended solely for the use of the addressee and may contain information that is confidential, proprietary, or both. If you receive this email in error please immediately notify the sender and delete the email. -------------------------------------------------------
  • This email is intended solely for the use of the addressee and may contain information that is confidential, proprietary, or both. If you receive this email in error please immediately notify the sender and delete the email. -------------------------------------------------------

--

http://www.freelists.org/webpage/oracle-l Received on Mon May 02 2016 - 17:11:56 CEST

Original text of this message