Re: oracle on EC2

From: Andrew Kerber <andrew.kerber_at_gmail.com>
Date: Mon, 11 Jan 2016 22:06:19 -0600
Message-Id: <53E5DD07-E9D8-46FA-B990-F5841623A324_at_gmail.com>

I just can't think of a use case of RAC on EC2. Can someone enlighten me.

Sent from my iPad

> On Jan 11, 2016, at 9:17 PM, Jeremiah Wilton <jcwilton93_at_earlham.edu> wrote:
> 
> I wrote this to help people who want to see if RAC on EC2 will work for them.
> 
> https://aws.amazon.com/articles/7455908317389540
> 
> Jeremiah 
> 
> Sent from my iPhone
> 
>> On Jan 11, 2016, at 7:12 PM, soumya das <soumya2home_at_gmail.com> wrote:
>> 
>> Hi guys,
>> 
>> Thanks for all the valuable input. I have a question even though its not entirely related to subject. Is it possible to create a RAC setup on ec2 ? I did few googling and found that aws still doesnt support it. Has anyone of you tried it or have any clear picture on this? If you do please share your opinion.
>> Thanks,
>> 
>> Soumya
>> 

>>> On Tue, Jan 12, 2016 at 1:10 AM, Jeremiah Cetlin Wilton <jcwilton93_at_earlham.edu> wrote:
>>> Right.
>>>
>>> This is the license-related doc:
>>>
>>> http://www.oracle.com/us/corporate/pricing/cloud-licensing-070579.pdf
>>>
>>> These are the docs to address the hypervisor support issue:
>>>
>>> https://support.oracle.com/epmos/faces/DocumentDisplay?id=1901155.1
>>>
>>> http://aws.amazon.com/articles/7455908317389540#FAQ1
>>>
>>> Jeremiah
>>>
>>> From: "Seth Miller" <sethmiller.sm_at_gmail.com>
>>> To: "Jeremiah Cetlin Wilton" <jcwilton93_at_earlham.edu>
>>> Cc: "max scalf" <oracle.blog3_at_gmail.com>, "Oracle Mailing List" <oracle-l_at_freelists.org>, "Maris Elsins" <elmaris_at_gmail.com>
>>> Sent: Monday, January 11, 2016 11:15:16 AM
>>> Subject: Re: oracle on EC2
>>>
>>> Neither of these links reference licensing.
>>>
>>> Seth Miller
>>>

>>>> On Mon, Jan 11, 2016 at 12:55 PM, Jeremiah Cetlin Wilton <jcwilton93_at_earlham.edu> wrote:
>>>> Not really.  There's also a doc for that :-)
>>>> 
>>>> https://support.oracle.com/epmos/faces/DocumentDisplay?id=1901155.1
>>>> 
>>>> I talk about it a little bit here:
>>>> 
>>>> http://aws.amazon.com/articles/7455908317389540#FAQ1
>>>> 
>>>> Jeremiah
>>>> 
>>>> From: "Seth Miller" <sethmiller.sm_at_gmail.com>
>>>> To: "Jeremiah Cetlin Wilton" <jcwilton93_at_earlham.edu>
>>>> Cc: "max scalf" <oracle.blog3_at_gmail.com>, "Oracle Mailing List" <oracle-l_at_freelists.org>, "Maris Elsins" <elmaris_at_gmail.com>
>>>> Sent: Monday, January 11, 2016 10:50:36 AM
>>>> 
>>>> Subject: Re: oracle on EC2
>>>> 
>>>> Does this mean that you have to make sure you are running EC2 instances in an Oracle VM hypervisor?
>>>> 
>>>> Seth Miller
>>>> 
>>>>> On Mon, Jan 11, 2016 at 12:27 PM, Jeremiah Cetlin Wilton <jcwilton93_at_earlham.edu> wrote:
>>>>> There's a doc for that:
>>>>> 
>>>>> http://www.oracle.com/us/corporate/pricing/cloud-licensing-070579.pdf
>>>>> 
>>>>> Jeremiah 
>>>>> 
>>>>> From: "Seth Miller" <sethmiller.sm_at_gmail.com>
>>>>> To: elmaris_at_gmail.com
>>>>> Cc: "max scalf" <oracle.blog3_at_gmail.com>, "Oracle Mailing List" <oracle-l_at_freelists.org>
>>>>> Sent: Monday, January 11, 2016 10:20:28 AM
>>>>> Subject: Re: oracle on EC2
>>>>> 
>>>>> Maris,
>>>>> 
>>>>> How are you licensing these databases?
>>>>> 
>>>>> Seth Miller
>>>>> 
>>>>>> On Mon, Jan 11, 2016 at 9:29 AM, Maris Elsins <elmaris_at_gmail.com> wrote:
>>>>>> Hi,
>>>>>> 
>>>>>> We're running a configuration that addresses some of your IOPS concerns and it's basically one of the architectures from this whitepaper https://d0.awsstatic.com/whitepapers/aws-advanced-architectures-for-oracle-db-on-ec2.pdf
>>>>>> 
>>>>>> - We have created our EC2 for Oracle DBs using Oracle Linux 6 (requirement for Oracle Smart Flash Cache)
>>>>>> - We've set up ASM on multiple provisioned IOPS EBS volumes (SSD) for striping
>>>>>> - We've enabled Oracle Smart Flash Cache on part of the ephemeral instance store SSD (it doesn't have even the tiny network latency that EBS volumes have, as they are local). And based on the AWR reports we see this works very well. And in fact with larger EC2 instances one gets plenty of instance store SSDs that otherwise are of no big use.)
>>>>>> - We don't rely on EBS volumes' snapshots for backups, as we have a DataGuard set up and when needed we stop the recovery there and take snapshots from it (for cloning purposes usually). I'd think this would also work with "ALTER DATABASE BEGIN/END BACKUP" + simultaneous snapshot of all striped EBS volumes too.
>>>>>> - We take regular RMAN backups for point in time recovery requirements.
>>>>>> 
>>>>>> May be this is not exactly what you were looking for as you provided a link related to RAID configurations, but probably you can still extract something useful from what I wrote.
>>>>>> 
>>>>>> regards,
>>>>>> 
>>>>>> ---
>>>>>> Maris Elsins
>>>>>> _at_MarisElsins
>>>>>> www.facebook.com/maris.elsins
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>>> On Mon, Jan 11, 2016 at 4:44 PM, max scalf <oracle.blog3_at_gmail.com> wrote:
>>>>>>> Hello all,
>>>>>>> 
>>>>>>> This question is related to running oracle database on Amazon Web Service.  Just so i respect everyone's time on here, I would say please ignore this question if you do not work with AWS.  
>>>>>>> 
>>>>>>> We are running oracle some 11g and 12c database on AWS EC2 server.  Most of the server have anywhere from 2 -8 EBS Volume attached(general purpose SSD), they are NOT striped or mirrored.  Lately we have been seeing some performance issue(year end closing) with high IO wait time(60-80 ms per read), for some mission critical application we have moved the EBS volumes from general purpose SSD to Provisioned IOPS(PIOPS) and everything seems happy.  But now we are coming back to some of the other application and our sysadmin says instead of moving everything from general purpose volumes to PIOPS we should just strip the volumes to get better performance.    
>>>>>>> 
>>>>>>> I agree with him, but my question if we were to strip the EBS volumes how do we deal with taking EBS Snapshot and managing them.  We rely on them for our DR in another region.  From what i understand about taking snapshot when your EBS volumes are stripped is that you have to freeze the IO before you do the snapshot to guarantee EBS snapshot consistency, see below link..
>>>>>>> 
>>>>>>> https://aws.amazon.com/premiumsupport/knowledge-center/snapshot-ebs-raid-array/
>>>>>>> 
>>>>>>> So i wanted to see what others are doing in the community to achieve higher IOPS and i am sure quite a few ppl are running oracle on AWS and also I wanted to find out when they say "Freeze IO", I am assuming putting database in HOT BACKUP mode is the wrong thing.
>> 

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Received on Tue Jan 12 2016 - 05:06:19 CET