Introduction
As the cloud computing is becoming a trend, in this article, I would like to give you some information regarding cloud based 3rd party solutions.
What's Cloud Computing?
I can simply explain the term "cloud based" with an example from the daily life.
All of us use electricity to run our computers, TVs, lights and other electrical peripherals in the daily life at home. And we pay just for the amount we used. And we don't pay for all lambs installed at home. We pay for just the ones which we turned on. And more over this, we don't maintain a power plant to able to consume electrical power. We use it from its cloud, and we don't know from which source does the electric comes from. If one power plant goes down, the whole cloud is not effected from this, we still continue to receive the power via other power plants. We even don't feel if power source is switched to the backup power plant.
When Edison discovered the electric, all the factories' had their own power plants. Because distribution networks were not available, and power generation was not reliable or sustainable.
Due to this fact, factories were built at the river sides to generate the power they needed from the mill, as today most companies have their own data centers.
Cloud Computing's base is similar to the above electricity example.
Cloud based solutions take their advantage from the highly available, sustainable and reliable internet services. Now, internet is more available then electric. Because it's on the air. It's even in our pockets. So the cloud based solutions are so close to you. It's just one click away from us. We can read and reply our mails, contribute to a shared document, upload documents to the shared folder in the cloud and share immediately with our teams, approve, reject or comment to the waiting workflow action items, and even we can stop and start systems via our mobile phones.
Now cloud is everywhere. Because everything started to move to the cloud. So this article will not be enough to cover all the cloud. Better we start with telling cloud based solutions for SAP.
Why Cloud based Solutions?
In addition to the advantages which we mentioned in the above example, there are other significant advantages coming from the Cloud :
- No need for a data center, which means,
- no hardware cost
- no electric bills
- no maintenance cost
- no backup worries
- no upgrade worries
- no development cost
- no initial license cost (just pay as long as you use and as much as you need)
So, these advantages coming from the Cloud saves you a lot, and let's you to cut costs drastically.
Cloud Solutions and Services not only helps you to cut your costs, but let's you to concentrate your core business as well.
Cloud based 3rd Party Solutions
Yes, correct, there are cloud based 3rd party solutions for SAP. It doesn't matter where your SAP system resides. Because,
cloud doesn't care where the independent servers are hosted. They're simply somewhere in the cloud.
Cloud computing is divided in to three major areas :
- Infrastructure as a Service (IaaS)
- Platform as a Service (PaaS)
- Software as a Service (SaaS)
Today, SAP has also joined this trend as SAP on demand, currently offering services for CRM and BI.
Below we will sort out you some cloud based 3rd party solutions and services.
To able use these solutions and services, it doesn't matter where your SAP systems reside. It can be either on site or outsourced.
Virtualization
Server Virtualization
Gartner Says Virtualization Will Be the Highest-Impact Trend in Infrastructure and Operations Market Through 2012.
SAP supports both virtualization and cloud hosting.
For Windows Servers, SAP Supports below virtualization solutions for productive usage (see SAP Note 1409608 - Virtualization on Windows) :
- VMware ESX Server 3.x and 4.0 (vSphere)
- Microsoft Hyper-V
And, SAP brings enhanced monitoring for the virtual systems for windows environment (see SAP Note 1409604 - Virtualization on Windows: Enhanced monitoring) to able capture system data on virtual systems.
For Linux enviroments, SAP Supports below virtualization solutions for productive usage (see SAP Note 1122387 - Linux: SAP Support in virtualized environments) :
- Xen hypervisor-based virtualization by Novell and Red Hat
- VMware ESX Server / vSphere
- IBM Advanced POWER Virtualization
- IBM z/VM and native LPAR on IBM System z
Although not supported, below virtualization technologies might be used for non-productive SAP sandbox systems :
- Citrix XenServer
- Virtual Iron
- Oracle VM
- SUN/innotek VirtualBox
- Microsoft Virtual PC / Virtual Server
Desktop Virtualization
Desktop virtualization is another cost saver technology for the companies to reduce their IT maintenance costs.
Today, there are two market leaders providing solutions :
- Citrix XenDesktop
- VMWare vSphere for Desktops
Here we would like to give an example for a cost saving live case with desktop virtualization.
VMWare virtualization saving result from Whirlpool case (
http://www.vmware.com/files/pdf/customers/09Q3_cs_vmw_Whirlpool_english.pdf):
• Spend 75 percent less time on IT administration versus a physical infrastructure
• Expand IT infrastructure without expanding headcount
• Virtualize 90 percent of Lotus Notes environment
• Virtualize 80 percent of Siebel Intel environment
• Virtualize 85 percent of SQL environment
• $256,000 in hardware savings
• $11,000 per year in energy savings
Cloud based Hosting
If you might think that if it's something which SAP supports, we can answer "YES".
SAP updates its customers regarding cloud hosting via SAP Note "1380654 - SAP support in cloud environments".
We would like give two major players among today's cloud hosting world : Amazon Web Services (
http://aws.amazon.com) and Rackspace (
http://www.rackspacecloud.com/ )
Both companies provide very competitive and attractive solutions for their customers.
With the Cloud, tomorrow's IT is on the way to shape from being a purchase and support center, to a design, decision and configuration center.
One of the main difference between conventional data center and cloud data center can be see as in the below picture :
Cloud is one step forward after the virtualized data centers.
With the virtualized data center, OK, you decrease the costs by dividing the physical machines into virtual partitions and reducing the server installation drastically by being able to cloning them.
But, still you have a data center which means still you have hardware, and space to place to, workforce to maintain it, electric cost, license costs, hardware and license upgrade and maintenance costs.
Here is the main difference with cloud, "you order what need, and pay as long as you use it".
We can compare conventional versus cloud with having an expensive car versus calling a taxi. With the car you have a limited space, and you have the buy the space even though you don't need it always. And there are additional costs such as tax, service, fuel, parking etc. But with the taxi, you call a taxi as big as you need, and you pay as long as you use it. Then you don't care for the rest.
How can we ensure the security over the Cloud
We can share your concerns regarding the security when it comes to decide to shift forward to Cloud. Everything is fine, but what about the SECURITY.
Here we would like to tell you about solutions regarding how to secure the Cloud.
And BeyondTrust provides security solutions to secure your data center regardless if it's in-house, or managed, or hosted, or on the Cloud.
Monitoring as a Service
There are a couple monitoring solutions in the market available. These are such as IBM's Tivoli Live monitring (just released by IBM when we were editing this article), BasisTek's BasisMon, Quest's FogLight, and there are more others.
But since our article is based on Cloud based 3rd Party Solutions, we'll examine just two of them, Tivoli Live Monitoring and BasisMon.
Please keep in mind that, these monitoring solutions are not replacing SAP Solutions Manager, but just completing. SAP Solutions Manager is a combination services (Solutions Monitoring, Diagnostics, Maintenance, Service Desk, Project Management, Training, etc.) more than monitoring.
Basismon, is a cloud based monitoring service. Typically to a cloud based service, it doesn't have a license cost. Pricing is based on your landscape's (total size of SAP systems' databases in the landscape) database size.
It doesn't require any plug-in or a software on your SAP server. It only requires a read-only RFC user. It comes with a 32bit linux compilation pre-installed appliance box. Also a virtual machine is available. Connection, tests, and training in total takes not more than 3 days, and ready to use.
The functionality and reports it brings are incredible nice. It captures all your performance, as well your SAP landscape's inventory, which let's you run comparisons between selected dates. It has a web based monitoring interface, which also enables to create tickets in your own ticketing system with an optional integration.
In the Tivoli Live Monitoring, you have all the similar service as BasisMon, but there is a need of an agent for each platform.