Re: 12c Install on Linux RedHat 6.
Date: Mon, 2 May 2016 13:36:55 -0500
Message-ID: <CAO9=aUxKRJ72Qx=wsvsoha+RFkWPdw+EM481T-sQiEgO14ZwNQ_at_mail.gmail.com>
Separate network interfaces are a requirement, not a preference. It sounds like the 12c installer may have changed, but the requirement itself is nothing new.
From what I can tell your options are to spend time trying to get your configuration as it is to work, or add a new interface to each node.
If you're getting push back, you can reference the following documentation
link, which clearly states that each node must have at least two network
adapters:
https://docs.oracle.com/database/121/CWLIN/networks.htm#CWLIN209
Good luck!
-Justin
On Mon, May 2, 2016 at 10:39 AM, Nabil M. Jamaleddin < nmjamaleddin_at_multiservice.com> wrote:
> I just tried to install 11g on the same servers and I do get both a
> private and public interface to choose from. So the install works like I
> expect. But when I try to install 12c only the public interface shows up.
>
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> So 12c is different than 11g with requirements.
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> Wonder what would happen if I install 11g and upgrade it to 12c. Would it
> take the private interface on an upgrade but not a fresh install.
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> *From:* Nabil M. Jamaleddin
> *Sent:* Monday, May 02, 2016 10:12 AM
> *To:* Justin Mungal
> *Cc:* oracle-l_at_freelists.org; Nabil M. Jamaleddin
> *Subject:* RE: 12c Install on Linux RedHat 6.
>
>
>
>
>
> “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.
>
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> 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.
>
>
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> Any thoughts would be very much appreciated and thank you very much for
> your time.
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> Verification of the hosts config file successful
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> Node connectivity passed for subnet "172.xx.xx.0" with node(s) node1, node2
>
> TCP connectivity check passed for subnet "172.xx.xx.0"
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> Node connectivity passed for subnet "192.168.xx.0" with node(s) node1,
> node2
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> TCP connectivity check passed for subnet "192.168.xx.0"
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> Interfaces found on subnet "172.xx.xx.0" that are likely candidates for
> VIP are:
>
> node1 eth0:172.xx.xx.39
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> node2 eth0:172.xx.xx.40
>
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>
> *Interfaces found on subnet "192.168.xx.0" that are likely candidates for
> a private interconnect are:*
>
> *node1 eth0:192.168.xx.39*
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> *node2 eth0:192.168.xx.40*
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> Checking subnet mask consistency...
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> Subnet mask consistency check passed for subnet "172.xx.xx.0".
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> Subnet mask consistency check passed for subnet "192.168.xx.0".
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> Subnet mask consistency check passed.
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> Node connectivity check passed
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> Checking multicast communication...
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> Checking subnet "172.xx.xx.0" for multicast communication with multicast
> group "224.0.0.251"...
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> Check of subnet "172.xx.xx.0" for multicast communication with multicast
> group "224.0.0.251" passed.
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> Check of multicast communication passed.
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> *From:* Justin Mungal [mailto:justin_at_n0de.ws <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
>
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> hey must have the same name on each node as well, such as having both
> private interfaces named eth0.
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> Don't forget about running CVU.
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>
> -Justin
>
> On Friday, April 29, 2016, Nabil M. Jamaleddin <
> 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
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> 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?
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> Thanks
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>
> *From:* Justin Mungal [mailto:justin_at_n0de.ws <justin_at_n0de.ws>]
> *Sent:* Friday, April 29, 2016 2:04 PM
> *To:* Nabil M. Jamaleddin
> *Cc:* 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> wrote:
>
>
>
> I am in the process of installing 12.1.0.2 on RedHat version 6.
>
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> I am installing Grid and I am in the Network Interface Usage screen in the
> installer.
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> I see eth0 my subnet and use for as public.
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> What I don’t see is
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> Eth0 192.xx.xx.xx.0 Private
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> The only interface the installer detects is my public interface. Why
> can’t I get the private interface to show?
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> I have this in my /etc/hosts for both nodes
>
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> 192.192.111.18 node1.build-private.com
>
> 192.192.111.17 node2.build-private.com
>
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> Ifconfig –a shows the configuration
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> 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
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> I did change the names and ip address for security purposes.
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> But my /etc/hosts and ifconfig seem to check out on both nodes.
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> Thoughts?
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