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Business Continuity and Workload Mobility for Private Cloud (CVD Part 3)

What is Next-Gen Workload Mobility for the Private Cloud?

Enterprises across the globe have been asking for simpler ways to provide multi-site Business Continuity and Workload Mobility for applications hosted in their Private Cloud. The Cloud promises a more agile operational environment and that promise has been fulfilled to a large extent within their data centers. But many Enterprises are challenged to unlock this same agility across multi-site Cloud topologies. For example, Enterprise CTOs and CIOs have asked us directly to provide simplified Workload Mobility of critical apps between sites to give their operations teams more flexibility.

Many competitive solutions offer basic VM mobility between sites and storage replication, but do not address the rest of the application environment including: security, stateful services, network containers, tenancy, and most importantly both physical and virtual resources.

What good does it do to move a VM to a new site if the rest of the application environment is left behind causing a potential security hole?

This blogs directly addresses multi-site Workload Mobility and provides some compelling test results from our new Business Continuity and Workload Mobility Solution for Private Cloud.

How to move a LIVE 3-tier app like Microsoft SharePoint to a new site (without impacting users) 

As we all know, business critical applications require a robust service environment to operate securely across the cloud. In our example below, the application environment provides firewall and load balancing services for each tier of the SharePoint application; web, app, and database tiers. These services are stitched together using a secure Network Container that carve out a slice of resources across the data center for SharePoint. Most Enterprises and SPs use a mix of physical and virtual resources including firewalls, load balancers, VPN termination, IDS, and network switching. Many of these services create stateful connections to users, so….

  • If you perform a live migration of SharePoint to a new site, stateful connections to firewalls and load balancers need to be preserved to maintain security and TCP connections to active users.

          Broken user connections = Service disruption (not good)

  • You must also provide identical security and services for new SharePoint users even though the application has moved to a new site.     

           Broken Network Services = Potential Security hole (even worse)

 Blog-3-Sharepoint-Container

How does Next-Gen Workload Mobility actually work?

Let’s share some test results from our new Business Continuity and Workload Mobility Solution to illustrate how we performed live SharePoint migrations to a new site (75 km away) while maintaining security, stateful services, and user connections.  Oh yes, automatically without manual intervention.

Baseline topology for Microsoft SharePoint deployed in our Private Cloud

We first deployed the SharePoint Web, App, and Database tiers in a secure network container in Data Center 1 using service orchestration, simple and easy. Refer to the figure below for a topology picture.

  • SharePoint Web Tier is in a Public Zone, and uses a virtual firewall (VSG) and Citrix load balancer
  • SharePoint App Tier and Database Tier (SQL) are in a Protected Zone and use an ASA Firewall and Citrix load balancer
  • Our validated design provides LAN extensions, extended clusters, secure network containers, virtual switching, and storage replication between Metro sites

SharePoint is up and running in Data Center 1, supporting hundreds of users with secure connections. Now let’s move SharePoint to a new site without the users knowing it.

Blog-3-App-Container-v2

Step 1:    Perform Live SharePoint Migration to Data Center 2….while maintaining secure user connections!

We performed a Live vMotion of  SharePoint (Web, App, Database) to new hosts in Data Center 2, described in the figure below.  Data Center 2 is 75 km away. Our SharePoint migration had minimal disruption (2 seconds or less) and maintained security, stateful services, and all user connections across our multi-site Cloud. Pretty sweet!   A few highlights from our validated design are provided below.

  • Our virtual switch (Nexus 1000v), virtual firewall (VSG), and UCS automatically updated Port and Security Profiles at the new site, so our virtual switching and application firewalls were preserved without lifting a finger.
  • Layer 2 Extensions permit tromboning back to Data Center 1 to maintain connections to physical appliances (stateful firewalls and  load balancers), also without manual intervention.
  • Our Network Container was automatically extended between Metro sites, maintaining security, tenancy, QoS, IP addressing, and user connections.  SharePoint was discovered on the new host in Data Center 2 within seconds, using this extended Network Container.

Now let’s move the rest of the network container to Data Center 2 in less than one second!

Blog-3-App-Move-v2

Step 2:      Redirect users to a new Network Container in Data Center 2….in less than 1 second!

With the aid of service orchestration, we simply created a new network container in Data Center 2. This new container included the same configuration, connections, and services (firewalls, load balancers) as the original container in Data Center 1.  Once created, we simply redirected external users to the SharePoint application running in Data Center 2, as described below.  The redirection of users happened in less than one second, pretty amazing. A simple routing update delivered through service orchestration performed the redirection. In this step, user connections were broken and new connections were re-established to the already running SharePoint application in less than one second!   A few highlights from our validated design are provided below.

  • Layer 2 Extensions allowed the preservation of IP Addressing for Apps and Services during migration.  There is no need to “re-IP” your applications just because they’ve moved to a different city.
  • The complete Network Container including physical and virtual resources was moved  with minimal disruption (sub-second) to users
  • Our Multi-site Cloud solution supports a typical application environment, including both physical and virtual resources, with scaling for large and small private clouds
  • We also support Cold workload moves of less critical workloads that don’t require these stringent stateful requirements.

Blog-3-Container-Move-v2

For More Info:

We encourage you to follow my blog series and check out our new business continuity and workload mobility solution (VMDC DCI), which describes key business drivers, Cisco DCI innovations, and validated designs that our customers are deploying in their private clouds.

Deploy with confidence! (and sleep better knowing your Cloud is more reliable and secure)

  • CVD Design Guide -- Cisco Business Continuity and Workload Mobility solution (VMDC DCI )
  • Solution Overview -- Cisco Business Continuity and Workload Mobility solution (VMDC DCI)
  • BrightTalk Session -- VMDC DCI for Business Continuity and Workload Mobility in the Private Cloud (webcast)

In the same blog series:

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Business Continuity and Workload Mobility for Private Cloud (Cisco Validated Design-Part1)

As a Cloud Architect, I’ve had the privilege to work with CTOs and CIOs across the globe to uncover the key factors driving Business Continuity and Workload Mobility across their cloud infrastructures. We’ve worked with enterprises, large and small, and service providers to answer their top five concerns in our new Business Continuity and Workload Mobility solution for the Private Cloud.

1) Can you provide business continuity, workload mobility, and disaster recovery for my unique mix of applications, with lower infrastructure costs and less complexity for my operations teams?  Yes.

2) Can you provide a multi-site design that reduces business outages and costly downtime, allowing my critical applications to be more secure and available? Yes.

3) Can my operations teams perform live migrations of applications across sites while maintaining user connections, security, and stateful services?  Yes.

4) Does your multi-site solution allow me to utilize idle standby capacity during “normal” operations, and reclaim that capacity as needed during an outage event?  Yes.

5)  Can your Cisco Validated Design greatly reduce my deployment risks and simplify my design process, saving my business significant time, money, and resources?  Yes.

 

A Proven Multi-site Design, Built on the Most Widely Deployed Cloud Infrastructure    

We addressed each of these pain points as we designed, built, and validated our new multi-site business continuity and workload mobility solution. Our multi-site solution is built upon Cisco’s cloud foundation, the Virtual Multi-service Data Center (VMDC) that’s been deployed at hundreds of the world’s top enterprises and service providers. In our latest VMDC release, we’ve extended our cloud design to support multi-site topologies and critical use cases for private cloud customers. This validated design simply connects regional and long-distance data centers within your private cloud to address some critical IT functions, including:

  • application business continuity across data center sites;
  • stateful workload mobility across data center sites, will maintaining user connections and security;
  • application disaster recovery and avoidance across data center sites; and
  • application geo-clustering and load balancing across data center sites.

Cisco business continuity and workload mobility for the private cloud -Cisco Validated Design

Choose the Cloud Infrastructure that Fits Your Unique Business Needs

The  VMDC Business Continuity and Workload Mobility solution (CVD Design Guide) is grounded in the reality of today’s cloud environment, providing different design choices that match your applications needs. We realize there is no “one size fits all” cloud design, that’s why we support both physical and virtual resources, multiple hypervisors and storage choices, and security compliant designs with industry certifications like FISMA, PCI, and HIPPA.

Key Factors Driving Business Continuity and Workload Mobility in the Private Cloud
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Virtualization Comes to the Oracle user Community

Virtualizing Oracle Databases – The Time Has Come!

Overall, virtualization of IT applications and databases is quite pervasive.  Estimates from industry analysts show that some applications and databases have virtualization penetration rates of 80 to 90%.  Overall the estimates for datacenter virtualization range from 60 to 70%.  One curious exception is the rate of virtualization for Oracle Databases.  Some estimates put the Oracle Database virtualization rate below 20%.  The big question is why so low for Oracle Database?

While I have never seen any formal research documenting the reasons, ad-hoc discussions with many DBAs and Architects and other Oracle users indicates that some of the major reasons for their reluctance to virtualize include:

  • Fear of performance degradation
  • Concern over availability and stability
  • And an “If it ain’t broke, don’t fix it” view

And for mission critical Oracle Databases those are valid concerns.  Any outage or performance degradation is costly.  Status quo is the safest approach.  But what I am hearing from customers and the Oracle community at large is that the time has come for virtualization.  The improvements in configuration flexibility, reduced deployment times, dramatically improved disaster recovery and cost savings are great motivators for virtualization by themselves. One of the early adopters for virtualizing and Oracle infrastructure was EMC. lets hear what EMC’s Chief Database Architect, Darryl Smith, has to say about the benefits of EMC’s virtualization efforts with EMC’s Oracle Infrastructure.

So EMC found great performance, improved availability and a reduction in database licenses all because of their move to virtualize their Oracle infrastructure. Here is more of Darryl talking about Oracle virtualization and the cloud.

EMC took the next logical step from initial virtualization and moved their Oracle infrastructure to a full cloud implementation with even more benefits thanks to the improved Oracle workload mobility.

EMC is a great example of why there appears to be a growing tide of Oracle users who are ready to ride the wave of virtaulization.  To learn more about EMC’s virtualization efforts and results, these two whitepapers on Cisco.com will provide a more complete overview of their journey:

EMC Transforms Their Oracle Infrastructure

EMC’s Journey to the Cloud

For more information on Cisco’s Oracle Solutions and how Cisco Unified Computing can accelerate your virtualization plans, please click here.

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The costs of data center downtime and dealing with data center failures – Hiren Desai

Few months ago, I blogged about getting the most from your current Data Center resources while customers evaluate options such as cloud for their business needs. We all understand that today’s business environment is characterized by rapid, unpredictable change. Some changes bring opportunities for your business, while others bring challenges and threats. But no matter what, your business has to be responsive and resilient —seamlessly taking advantage of opportunities while mitigating risks.

Your business depends on IT infrastructure (whether hosted in your own internal data center or in Cloud) and must be designed to maintain the continuity of your operations and secure data integrity in the event of an unexpected disruption. It also must help you comply with government regulations and integrate risk strategies to reduce costs while scaling rapidly and automatically as the marketplace changes.

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