Re: Oracle clusterware interfaces renamed after OS upgrade to RHEL7

From: k.hadd <kouss.hd_at_gmail.com>
Date: Wed, 8 Apr 2020 11:14:21 -0400
Message-ID: <CAF+xsmS-YXVPC4Ot7LzRP+Dbg1LaaWCTu6zFo84H82KxbQQxUg_at_mail.gmail.com>



Hi,
I tried this myself for Redhat 7 . It includes both UEFI or legacy boot mode cases. I had to add the arguments at the of the grub for it to work and not in the middle.

https://koussilicious.blogspot.com/2018/03/restore-standard-naming-of-network.html

On Wed, Apr 8, 2020 at 9:54 AM Ls Cheng <exriscer_at_gmail.com> wrote:

> Hi
>
> You can rename network interfaces in Red Hat
>
>
> https://www.thegeekdiary.com/centos-rhel-7-how-to-modify-network-interface-names/
>
>
>
>
>
> On Wed, Apr 8, 2020 at 3:44 PM Hameed, Amir <Amir.Hameed_at_xerox.com> wrote:
>
>> Hi,
>>
>> I have a three-node RAC running on RHEL6. The grid version is 12.1.0.2.
>> To upgrade the OS from RHEL6 to RHEL7, we took the following path as
>> suggested by Oracle:
>>
>> 1) Delete the node before the OS upgrade.
>>
>> 2) Perform the OS upgrade on the deleted node.
>>
>> 3) Add the node back and perform the relink.
>>
>>
>>
>> To upgrade the OS, our data center folks installed the new OS on a new
>> disk, detached the old disk and attached the one with the new OS. After the
>> upgrade, some of the RAC interfaces were renamed by the OS as shown below:
>>
>> Old name --> New name
>>
>> eth7 --> eth9
>>
>> eth8 --> eth4
>>
>> eth9 --> eth10
>>
>>
>>
>> I have been told by our data center folks that in RHEL7 these interfaces
>> were reordered and that RHEL 7 does not give us the same easy ability to
>> reorder the cards as in the previous version. It is my understanding that
>> an interface name in RAC has to be consistent across the cluster (eth8 on
>> node1 as a private interconnect has to have the same name on node2 and
>> nod3), and therefore, with the reordering of interfaces, it will not be
>> possible to add the node back into the cluster. Has anyone gone through a
>> similar scenario as ours? How were you able to resolve it?
>>
>>
>>
>> Any feedback will be appreciated.
>>
>>
>>
>> Thanks,
>> Amri
>>
>

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Received on Wed Apr 08 2020 - 17:14:21 CEST

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