Cloud on Café Com Cloud

A how-to from AWS

Wed, 14 Nov 2018 17:01:29 -0200

I know you heard about the Amazon outage in a specific store when migration from Oracle to Aurora. But what you didnt heard is: they already migrate 88% of their Oracle park to Aurora, and the only real issue was what came to public (of course).

So, if you wanna to check out this how to, how to use AWS DMS service, grab a coffee and follow the link below:

https://aws.amazon.com/blogs/database/best-practices-for-migrating-an-oracle-database-to-amazon-rds-postgresql-or-amazon-aurora-postgresql-migration-process-and-infrastructure-considerations/

See you Around,

Why you should consider cloud - today.

Mon, 20 Aug 2018 10:44:16 -0300

Okay. You open this post, I have your attention for perhaps 1 minute tops, and I hope your are not scrolling down doing some fast pace reading.

I’ll not tell you that migrating to cloud you will save budget compared with on-premises architectures, because sometimes this is not true. I’ll not say to you that 4 cents per gig is a great value, because when you multiply this by a million or a trillion (petabytes) you will have a problem in your hand.

What I will tell is why, seriously, you need to think about cloud today. Dont leave it for tomorrow. Spent 3 minutes here with me, today. Lets go?

Wanna know what is truly great and awesome in cloud computing? Okay. In five years (or maybe next week), you a senior IT professional is talking with your child, who works in the IT field too, remembering the “golden age”, the “good old days”, the “old school”. Here is what you guys will talk about:

-- Hey son, when I have your age, someday my manager enters my cubicle yelling at me (because someone yell at him/her) “We need to make this servers available today!!We already have the code, some beautiful and colorful app that will engage 5 times more customers to us, and we need to deploy the infrastructure today”. What I think? If everything is already bought, this means a lost night/dawn/morning, 2 maybe 5 grams of caffeine, high levels of cortisol and my job will be:

unbox everything and mess with the datacenter
physically install servers, firewalls, network load balancing, cabling, and make then receive an AC power for the very first time
if anything explodes, all lights are green and everything is 5 by 5, time to install and configure everything, OS, firewall rules, storage, networking, latest patches and testing testing, testing.
if everything is good, I should now have 2 maybe 3 servers, available to receive the code. Is 11AM, my boss is yelling at me again (not his/her fault, its a critical moment), but, after 12 hours, I am a hero and our new and colorful application is running flawlessly.

-- What??? 10 hours dad? And you weren’t fired?

-- No son, I was a hero. How would you do all of this today?

-- 5 clicks, 15 minutes work, being pessimist.

In 2006 when AWS launch EC2 the game starts to change my friends. IT and Business start to make amends, walking hand to hand with each other. IT is not “that bad place, with really mean people that everyday says NO to me”..now the IT are the good guys..the “do” guys. Why? Because you dont need to spend 10 hours anymore. with 10 clicks, and minutes you’ll have the job done. Its amazing right?

Okay. Some of you know are thinking “but I have a virtualized environment”, I run a hypervisor. I have templates and automation to do this work in minutes too.

Well, what about your farm’s capacity? Do you have enough cores, ram and disk to deploy something that become a reality today? You need to make annual capacity planning, buying and making all this capacity available for someday, perhaps, consume it?

If you are not able to expand your farm today, but your competitor can, how it can affect your business goals? In a world of today, now, this second, you can really wait hours/days/weeks to get your infrastructure ready?

Virtualization is great. Virtualization change the game in the past. But on-premises virtualization dont have a *very* important thing. Hyperscale. You need a thousand cores today? Okay. You need 2TB of memory today? Okay. You need 800TB of disk today because someone thought that deploy a giant hadoop cluster today is a good idea? Okay.

Cloud providers are buying, in a scale of millions, brand new servers, disks, cpus, researching and developing new PaaS and SaaS offers. Everything to make your IT department a business best friend.

Cloud is not just about savings. Cloud is about overcome competition. Cloud is not a place were everyone is happy and you should be happy there too. Cloud is a tool. And you should consider use this tool. Today.

See you!

Backup in the Cloud era - what is changing?

Wed, 20 Dec 2017 13:07:05 -0200

Hello there!

Hope this post find you well. These days one of my customers ask me to advise him on backup/restore procedures and solutions on a new environment running on AWS.

Production databases will run on EC2 instances, on Oracle with BYOL (bring your own license). Customer is thinking about EBS (Elastic Block Storage) solutions or S3 (Simple Storage Service).

Snapshots in Oracle world usually are used in conjunction with begin/end backup operations. If you take 1 snapshot per day only, and you are not willing to lost 24hs of commited data you need to have a second backup strategy. There is a product offered by N2WS which is quite amazing in orchestrating, scheduling and controlling the snapshots - you can configure to take a picture every 5 min - which is usually lower than a business RPO. But how about a logical corruption, a wrong delete done on last weekend. How to restore this? You must retain snaps for a week, maybe a month, maybe a year, restore this snap in another EC2 instance and manually restore data. Seems costly, right?

The ideal world way - from the documentation - is to deploy OSBCS Oracle Secure Backup Cloud Service. This (paid) option give you the ability to use S3 as tape, so minimal adjustments need to be done in order to migrate your backup strategy to the cloud. You need to setup and install OSBCS on each EC2 instance, adjust your channels to use OSBCS and you are ready to go! RMAN retention, catalog, everything go smoothly if you choose to pay for this option. How OSBCS is charged? Per Channel.

So, if you have 100 databases, you can buy for example 10 channels, and make 1 backup at time with 10 channels, or 10 backups at time with 1 channel, or 2 backups at time with 5 channels, or 5 backups at time with 2 channels, or - you got the idea.

Comments are welcome =]

See you around,

Hang.

Release schedules dates document was updated!!

Mon, 13 Mar 2017 18:33:13 -0300

Continue Hanganalyze’s post: 12.2 on-prem available for download, we see that realease date document was update on MOS (742060.1).

Basically Oracle 12.2 was released for cloud (in March 2017 for premises) and 12.2 have been supported until 2021.

So, now it’s time to think about and plan to upgrade databases 11.2.0.4 and 12.1.0.2, of course if application was compatible too! :-)

Remember, now Oracle Recertification program follow the schedules date (more information you could see in this video).