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Simplifying, Virtualizing and Protecting your Data Center copyright I/O Continuity Group, LLC
Presenters <ul><li>Doug Theis , Lifeline Data Centers </li></ul><ul><li>VP and Datacenter Security Specialist </li></ul><u...
Administrative information copyright I/O Continuity Group, LLC
<ul><li>Maximum Uptime and Value </li></ul><ul><li>Facilities – New Eastgate Mall construction </li></ul><ul><li>Connectiv...
Virtualization is revolutionizing IT <ul><li>It is changing how we do everything. </li></ul><ul><li>Offering much greater ...
Where does Virtualization live? <ul><li>Internal datacenters </li></ul><ul><li>Hosted services </li></ul><ul><li>Computing...
Audience <ul><li>Show of hands: </li></ul><ul><ul><li>Understanding of basic SAN concepts? </li></ul></ul><ul><ul><li>Impl...
Agenda <ul><li>Storage Consolidation with SAN’s </li></ul><ul><li>Server Consolidation with Virtualization </li></ul><ul><...
Einstein Quote: Explaining it to a 3 year old copyright I/O Continuity Group, LLC
Data Proliferation <ul><li>IT organizations have been battling year-after-year information  growth rates of 50 to 100 perc...
IT Challenge <ul><li>Every new IT trend involves a: </li></ul><ul><ul><li>New  vendor  solution to integrate with current ...
Phases of Consolidation <ul><li>Reduce the need for valuable resources: </li></ul><ul><ul><li>Phase 1 : All servers share ...
Top Three Questions <ul><li>Why is storage important? </li></ul><ul><ul><li>80% of most company’s capitalization </li></ul...
Storage Basics <ul><li>Every operating system and application  NEEDS a DISK  to hold data: </li></ul><ul><ul><ul><li>Web s...
Pre-SAN=Direct-Attached Storage  <ul><li>One-to-one model leads to “ server sprawl ” when simply more disks may be needed....
What is a Storage Area Network? <ul><li>Storage Area Networks (SANs) consolidate disks on their own  high-speed dedicated ...
SAN Reliability <ul><li>Hardware </li></ul><ul><li>All components are duplicated (two Server HBA’s, two Switches, two Stor...
DAS vs SAN Features <ul><li>DAS </li></ul><ul><li>Standalone disk enclosures </li></ul><ul><li>One-to-one  model – no swit...
SAN Architecture <ul><li>Current “de facto” storage design </li></ul><ul><li>Price has come down approx 80% in 8 yrs </li>...
Types of SAN Switches <ul><li>Fibre Channel SAN </li></ul><ul><li>Fast  Optical switches  </li></ul><ul><li>Bandwidth 200-...
SAN vs iSCSI Stacks copyright I/O Continuity Group, LLC SAN is fast and robust with minimal network overhead. iSCSI is “bl...
<ul><li>SCSI to IP packet </li></ul><ul><li>Software initiators </li></ul><ul><ul><li>Built-in NICs (teaming) </li></ul></...
Types of Disks and Arrays <ul><li>ATA/IDE – mostly desktops </li></ul><ul><li>Parallel SCSI – slower data transfer (200 MB...
Top-to-bottom approach <ul><li>Evaluate your current server/storage arrangement and data growth </li></ul><ul><li>Prioriti...
Tiered Storage Strategy copyright I/O Continuity Group, LLC Tier 1 High end, Mission-critical Tier 2  High-Mid range Fibre...
Questions to Ask <ul><li>How much storage do I have now? </li></ul><ul><li>How quickly is it growing? </li></ul><ul><li>Wh...
Traditional  Direct-attached Hosts External SCSI Storage Array Parallel SCSI connection LAN Each server is separately atta...
FC SAN- attached Hosts FC Storage Array FC Switches 200 to 400 MB/s Tape Library Servers with NICs and FC HBA’s LAN FC SAN...
Why Virtualization? <ul><li>Next level of consolidation running on top of SAN for best performance and automation. </li></...
Server Consolidation <ul><li>New virtualization solutions gaining popularity </li></ul><ul><ul><li>VMware  – Fortune 100 m...
Physical Servers represent the  Before  illustration. “ Converter” migrates the physical machines over to Virtual Machines...
Virtualization-Value Proposition <ul><li>Automation and management </li></ul><ul><li>Obtain much  higher utilization   out...
Phases of Virtualization Adoption <ul><li>Separate software from hardware , with ability to have multiple copies of a work...
SAN + Virtualized Hosts FC Storage Array FC Switches 200 to 400 MB/s Tape Library LAN FC SAN’s offer a dedicated block-lev...
SAN Extensions <ul><li>FC SANs are limited in their connection distance to around 500 km. </li></ul><ul><li>Disaster recov...
Questions to ask <ul><li>How many servers do I currently have and how many do I add every year?  (aka server sprawl) </li>...
The Technical Expertise <ul><li>We are vendor-certified on supported platforms and hardware, including: </li></ul>copyrigh...
Vendor Neutral <ul><li>There are four main benefits to designing SAN’s independent of any single equipment vendor.  </li><...
Trusted Advisor <ul><li>I/O Continuity Group will help you: </li></ul><ul><ul><li>Integrate a “no downtime” solution </li>...
I/O Continuity Group Process copyright I/O Continuity Group, LLC Assess Design Implement Train Manage <ul><li>Assess:  New...
The Engagement Process <ul><li>The transformation begins with our services </li></ul><ul><ul><li>From simple “starter” SAN...
Visit www.iocontinuitygroup.com Let us help you and your customers flip the switch! copyright I/O Continuity Group, LLC
David Paquette, Technical Analyst copyright I/O Continuity Group, LLC
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I O Continuity Group July 23, 2008 Seminar

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Planning VMware on SAN Deployments
Why is virtualization such a popular datacenter design? Learn about the SAN pre-requisites and other

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  • Thank you Doug. We are very happy to have all of you joining us this today for this short technology presentation. We are now in a cycle where there is increasing pressure to do more with less. Once you have a better understanding about how virtualization is deployed, you should be able to start making more informed decisions about planning for adoption. This cycle is accelerating the adoption of virtualization.
  • It is becoming less important where your data actually resides with the emergence of virtualization and computing clouds. Virtualization can cut across physical boundaries through centralized and automated management. Currently the Fortune 100 are virtualizing about 10% of all their servers. The prediction is that in the next 8-10 years, 100% of their servers will be virtualized.
  • We have a very mixed audience with us today, but we hope to focus on the end user’s objectives. I am assuming that most people know little or nothing about this topic and hope it is mildly riveting. For the vendors and technical members of the audience, I invite you to ask your questions during the break or send me an email for more information. You can also sign up to subscribe to my newsletter.
  • I am going to endeavor to provide some quick snapshots and crisp answers describing the salient features of this new emerging technology with a minimum of techno-babble . I am in my 9 th year of explaining SAN mostly to technical audiences, which suggests that Storage Area Networks are here to stay, at least for the forseeable future. Not only are they the de facto architecture for managing your datacenter, the cost has come down dramatically in those 8 years, since it is now reaching critical mass proportions. The most common customer comment I heard was, “someone came in and set up our SAN two years ago and I haven’t touched it since”. It seems to runs by itself. Now they’re 80% cheaper and well within the budget of most SMB’s. Since virtualization was introduced 5 years ago, the Fortune 100 have been able to consolidate 1,000 servers into 200 servers or an 80% reduction. That’s a lot of hardware investment that was avoided translating to significant energy savings. Since the second major consolidation trend is called virtualization came out 4 years ago and is DEPENDENT ON a SAN foundation, I decided to help people put all the pieces of the puzzle together. If you are considering adopting virtualization technology, there are some underlying requirements that should be addressed. There are in fact two phases of consolidation: First storage consolidation; then server consolidation.
  • Einstein used to say that if you really understand your subject, you should be able to explain it to a three year old. Provide a high level view of the solutions, given our short time slot. This technology which has been around for almost a decade is now reaching a critical mass adoption rate. Over last 8 years, typical customer comment, “someone came in and set up our SAN two years ago and I haven’t touched it since”. It seems to runs by itself. Now they’re 80% cheaper and well within the budget of most SMB’s. Please see me after the presentation for more technical information or visit my website and enroll in my newsletter.
  • What triggered the SAN-movement 10 years ago was relentless data growth which showed no signs of slowing down. Before virtualization came around, the problem was managing the underlying data. Just like your closets get full, so do your hard drives. So how can we solve the data proliferation problem, with files and total capacity doubling every 12-18 months? Managing your stuff can consume significant IT resources. The bottom line is that most organizations cannot ignore this situation.
  • Over the years the choices and competition in the SAN market has grown, causing more complexity and less transparency in making appropriate decisions. First let’s consider the challenges. Top section: Every organization has it’s own ways of handling new IT. Bottom section: Depending on your current rate of growth, you may or may not have a data management problem, but the majority of organizations do. To replace existing servers with new ones to keep up with technology, becomes prohibitively expensive. Besides the cost of new hardware, there’s energy-consumption, sometimes referred to in today’s ecological terms as the carbon footprint. When you connect to the internet, you are attached to “computing clouds” as they are now referred, made up of thousands of physical and virtual servers.
  • It is not readily apparent that there are underlying infrastructure requirements that must be in place for virtualization solutions to work effectively. The common denominator is consolidation. Since virtualization was introduced 5 years ago, the Fortune 100 have been able to consolidate 1,000 servers into 200 servers or an 80% reduction. That’s a lot of hardware investment that was avoided and significant energy savings.
  • So far data cannot be stored in thin air. Maybe in 2012, but not today. Let’s get down to the bottom line. Your datacenter IS your business. If you lose it, you’ll likely go out of business. That is why publicly held companies have a fiduciary responsibility to ensure it is always up backed up in case of a disaster.
  • Technology for storing data is still dependent on a hard disk for storage. We will examine how companies are moving away from the DAS model. So we need ways of adding more disk capacity seamlessly. Can you see the Challenges with dedicated storage not being consolidated? It’s an all or nothing proposition, no partitioning a shelf of disks across multiple servers. Whereas all the servers can share a single array, all the capacity can be consolidated and centralized in one storage array. Consolidation - stacking those standalone disk shelves together-one big pool of disk capacity. When applications are busy the hard drives get full. Servers often times require more disk space. If a server is directly attached to a new shelf of disks (like the servers above), there is time to install hardware and drivers and at least one reboot of the system. If instead they were all sharing one array, like the bottom system we could connect all the hardware to a single dedicated network. If the bottom storage array were like a helium balloon machine for adding new disk capacity, each server would be able to have the new capacity it requires automatically, at any time and without disruption. The server could just inhale that helium and keep its applications running non-stop.
  • Traditional storage model, every server has captive storage shelves that they harbor for themselves. Virtualization also is a remedy for this. When new applications are installed on their own server, your are dedicating not only disks but also processors and memory to one application on a physical machine. This 1-to-1 model has led to server sprawl, keeping your IT staff even busier. Notice the external arrays are an all or nothing proposition for each server, meaning you cannot share disks between servers (as you can see there is no connection between them). Each server has its own shelf of disks whether or not it needs all the capacity. What remains unused or idle is a waste of resources. The servers attach to the entire shelf even if they only require half the space, and it’s usually difficult to predict when any of your servers might need more disk space. So utilization levels cannot be optimized using this model.
  • As the name implies, this is a network of storage – servers using a network to gain access to a set of disks. Servers require an HBA to convert the signal to optical and send the request to the switch which forwards it to storage controllers. It is very fast. The first phase of consolidation revolves around the disks, moving them to one central repository call the storage array. This is the capacity building block which houses ALL the disks. Add 15-disk shelves on-the-fly without disrupting anything on the SAN. Attached to a set of switches, known as the fabric with seamless redundancy . Distinguish fabric from SAN . It’s scalable with devices added dynamically without interruption of service. Separation of storage management from application management – app specialists contact storage specialist to provision more capacity. All right click operations. The switches vary in number of ports , the network speed and basic networking technology. Not all servers go on the SAN. A heterogeneous SAN means most platforms and applications can attach (depending on the compatibility matrix). You only buy as much as you need now, and add-on later. How do the servers acquire the storage from the array? The helium balloon machine is able to provide any size or color balloon that any server might want, and the servers can inhale the helium (ie disk space) without taking a breath (ie seamlessly without rebooting). That level of flexibility enhances the utilization levels of the array. Are all your servers SAN-worthy- do they require the fast connection speed and no downtime? Probably not.
  • Perhaps you do not require a full time SAN administrator in-house . Traditional RAID technology with automatic hot spares taking their place. (hot spares run by themselves) Further, the storage vendor immediately receives a notification to ship a replacement drive. (vendors keep the array running without you necessarily knowing a disk or other component failed.)
  • To review and compare our two main storage options again, notice the benefits of the SAN over the DAS. DAS is sort of like musical chairs, only one server can attach at a time which is a manual process. With DAS, adding disk space to a server is a manual process unlike the SAN that runs by itself. Of the two models, SANs are much faster, more reliable, with less management overhead. What does “runs by itself” mean? NSPOF= hardware is duplicated or redundant so if one part fails the other takes over. It also runs by itself through the user-friendly storage management interface which provides rapid disk volume provisioning.
  • This is a simple two-server diagram, but understand that you conceivably you could have up to around 200 servers on one SAN, depending on the design. $20,000 as starting point for an entry-level iSCSI SAN. Compatibility matrix explaining exactly what hardware and software are supported. Right sizing capacity limits and different disk types supported. My customers value my approach to simplifying their networks.
  • Two classes of switches – Pizza box switches shown here and Enterprise Director switches with hundreds of ports. The are differences in the switch speeds and port counts. You always want the fastest with as many ports as you can afford. Most important planning phase to make best choices. Traditional FC protocol or emerging iSCSI block protocol running on GigE network. Type of switch, the port density and speed. Not necessarily an either/or decision. Could incorporate two separate SANs into your datacenter. We are certified on Brocade and Cisco FC switches iSCSI environment for test/dev After the proof of concept is completed, we can help you determine if it would be wise to go with FC. Fibre channel switches send light or optical signals across the network, which makes SANs very fast. Performance vs costs tradeoff. Buy only what you need and grow organically. Per port cost of FC $500 vs iSCSI &lt; $50
  • Each option has price/performance differences. The servers connect to the SAN through an initiator or hardware HBA. HBA’s translate the server protocol to a block protocol. Again we can help you select the best option for your datacenter.
  • During the engagement we will consider the best disk type based on application workloads. This could be a seminar in itself. http://wiki.emdstorage.com/Hardware/DriveInterfaceComparison http://www.webopedia.com/DidYouKnow/Computer_Science/2007/sas_sata.asp I’m not going to delve into the background of all these disk types, that look like Greek letters to some of you. But the main take away is that there are decisions about choosing the right disk that we can match to your requirements. Besides choosing the right disks, decisions also are required about the RAID protection level and application workload requirements. ATA= Advanced Technology Attachment SATA uses native command queuing SAS uses tagged command queuing
  • The key is understanding your server’s application workloads. When IOCG comes in to perform an assessment, we initially consider the workloads running on the servers. IOCG has tools that will analyze your bandwidth and IOPS. IOCG can help you understand how to work more effectively with the vendors.
  • Some of your data is daily mission-critical applications which cannot go down – Tier 1 which is your FC SAN option Other data is old and rarely used except for historical purposes- Tier 5 which is your backup tape. Then there are three intermediate stages which depend on server workload characteristics. We can analyze your server’s workloads and apply the right type of storage. Not every server in your environment is mission-critical, so IOCG will assess the types of servers and applications in your datacenter and right-size the disk type for you. This is part of the design process and feeds into the Double-Take message coming up.
  • The questions you should be asking yourself are shown here. Right size the storage array to meet future needs. Will the solution handle all my business needs? When will my backups take longer than overnight to complete? There are vendor roadmaps and compatibility matrices which one must consider before purchasing.
  • Just to quickly review – this is our Before picture. The musical chairs model where only one server can attach to an external disk shelf at a time.
  • To reveiw, by having all your servers sharing one storage array on a high-speed dedicated SAN, you will not only have a system that runs by itself, you will also have the necessary foundation to install a virtualization solution like VMware. Notice how the VMware server can share the same storage as Linux or Windows- again SAN’s are flexible.
  • Hyper-V RTM’d in July The three virtualization software solutions are very different in their maturity and feature set. VMware has captured the Fortune 100 market where robust performance and availability of mission-critical applications justifies the expense. Virtual Iron has captured the SMB market where cost savings is more important than cost, while maintaining many load balancing and high availability features. They also do not require as much Linux experience as VMware, and easy wizard-driven configuration. Hyper-V is has just been released to market after the beta version came out earlier in the year and is a free feature of Windows Server 2008. So it’s more of a comparison of apples and oranges at this stage until the newer entrants expand their products.
  • Here is a good example of a before and after virtualization illustration. You should be able to see the value proposition. There are tools that will migrate any of your physical servers to virtual servers. So instead of having one application running on each physical server, you have multiple “Virtual Servers” running on two or more high availability servers. Thereafter, if you ever need another server, you simply right click and clone a virtual server. This is on-the-fly server provisioning.
  • Phases of deploying virtualization: 1. Separating software from hardware with the ability to have multiple copies
  • VM’s replacing hardware- mobile between physical servers. Higher server utilization with efficient use of disks. Now let’s see what it looks like when it’s all put together. Again, by having all your servers sharing one storage array on a high-speed dedicated SAN, you will not only have a system that runs by itself, you will also have the necessary foundation to install a virtualization solution like VMware. These servers can be added on the fly, without disruptive other servers currently attached to the SAN. Notice how the VMware server can share the same storage as Linux or Windows- again SAN’s are flexible.
  • These are some of our vendor certifications.
  • Today I/O Continuity Group supports vendor-neutral solutions, meaning we focus on methodology and technology supporting best-of-breed solutions fitting all pieces of the puzzle into a well rounded solution. This is technology as it is, flaws and all, without any particular brand loyalty. If the network design employs a fundamental philosophy of using the best equipment for a particular function regardless of vendor, then the change is greatly simplified. But it does mean that you should have a migration plan. a vendor-neutral design philosophy forces you to use open, non-proprietary protocols. Without such a design philosophy, it is often impossible to introduce equipment from a new vendor.
  • We can do it all from assessment to design to deployment. Trusted advisor for thousands of satisfied customers meeting their business objectives Experience in every industry and all sizes of organizations Demystify technology, delivering highly-tailored, custom-designed solutions Integrate different vendor products into logical complete solution Certified on everything we deliver and know how to work with large vendors. Less overhead costs to pass on to the customer
  • Our business model is flexible. Irrespective of where your company resides on the process cycle, we can offer our end-to-end services. Then we will design the best solution working with your vendor or one that meets your needs. We can help you with the implementation, training and management or we can refer you to hosting companies how can manage the entire solution for you.
  • We can help with new or existing SANs and/or new or existing virtualization solutions. Please contact us for more information.
  • We would be happy to answer any company-specific questions after the Q&amp;A session or by appointment.
  • Transcript of "I O Continuity Group July 23, 2008 Seminar"

    1. 1. Simplifying, Virtualizing and Protecting your Data Center copyright I/O Continuity Group, LLC
    2. 2. Presenters <ul><li>Doug Theis , Lifeline Data Centers </li></ul><ul><li>VP and Datacenter Security Specialist </li></ul><ul><li>Anne Achleman , I/O Continuity Group </li></ul><ul><li>VMware on SAN Specialist </li></ul><ul><li>David Paquette , Double-Take </li></ul><ul><li>Senior Technical Analyst </li></ul>copyright I/O Continuity Group, LLC
    3. 3. Administrative information copyright I/O Continuity Group, LLC
    4. 4. <ul><li>Maximum Uptime and Value </li></ul><ul><li>Facilities – New Eastgate Mall construction </li></ul><ul><li>Connectivity </li></ul><ul><li>Security </li></ul><ul><li>Environments </li></ul><ul><li>Managed Services </li></ul><ul><li>Hosting/Owning/Leasing </li></ul><ul><li>The Lifeline Difference </li></ul>Lifeline Data Centers copyright I/O Continuity Group, LLC
    5. 5. Virtualization is revolutionizing IT <ul><li>It is changing how we do everything. </li></ul><ul><li>Offering much greater value- doing more with less. </li></ul><ul><li>What do people want? </li></ul><ul><ul><li>To build and quickly deploy applications that are always available and always responsive, to drive their business non-disruptively. </li></ul></ul>copyright I/O Continuity Group, LLC
    6. 6. Where does Virtualization live? <ul><li>Internal datacenters </li></ul><ul><li>Hosted services </li></ul><ul><li>Computing clouds </li></ul><ul><li>It’s changing how we do everything. </li></ul><ul><li>Virtualization cuts across physical boundaries. </li></ul><ul><li>It can be adopted in phases. </li></ul>copyright I/O Continuity Group, LLC
    7. 7. Audience <ul><li>Show of hands: </li></ul><ul><ul><li>Understanding of basic SAN concepts? </li></ul></ul><ul><ul><li>Implemented a SAN already? </li></ul></ul><ul><ul><li>Understanding of basic virtualization concepts? </li></ul></ul><ul><ul><li>Implemented virtualization already? </li></ul></ul>copyright I/O Continuity Group, LLC
    8. 8. Agenda <ul><li>Storage Consolidation with SAN’s </li></ul><ul><li>Server Consolidation with Virtualization </li></ul><ul><li>Best practices and how we can help </li></ul><ul><li>Please hold questions to the end </li></ul><ul><li>Please complete post-event survey </li></ul>copyright I/O Continuity Group, LLC
    9. 9. Einstein Quote: Explaining it to a 3 year old copyright I/O Continuity Group, LLC
    10. 10. Data Proliferation <ul><li>IT organizations have been battling year-after-year information growth rates of 50 to 100 percent . </li></ul><ul><li>This trend will continue into the next decade. </li></ul><ul><li>Just storing more data is no longer an option. </li></ul><ul><li>Consolidating multiple application tiers into a single common infrastructure will lower costs and improve service levels. </li></ul>copyright I/O Continuity Group, LLC I’m down and I can’t get up! Data Explosion!!
    11. 11. IT Challenge <ul><li>Every new IT trend involves a: </li></ul><ul><ul><li>New vendor solution to integrate with current systems </li></ul></ul><ul><ul><li>New hardware requirements and software licensing </li></ul></ul><ul><ul><li>Need for special talent and integration strategies </li></ul></ul><ul><ul><li>More energy costs, more datacenter space, extra cooling </li></ul></ul><ul><ul><li>Need to protect data without a lot of difficulty </li></ul></ul><ul><li>Data capacity doubles every 12-18 months (based on average business growth) </li></ul><ul><ul><li>Managing data becomes difficult and expensive </li></ul></ul><ul><ul><li>Backing up data takes longer as more data accumulates </li></ul></ul>copyright I/O Continuity Group, LLC
    12. 12. Phases of Consolidation <ul><li>Reduce the need for valuable resources: </li></ul><ul><ul><li>Phase 1 : All servers share the storage array(s) on a Storage Area Network </li></ul></ul><ul><ul><li>Phase 2 : Many applications running as “Virtual Machines” on fewer servers </li></ul></ul>copyright I/O Continuity Group, LLC
    13. 13. Top Three Questions <ul><li>Why is storage important? </li></ul><ul><ul><li>80% of most company’s capitalization </li></ul></ul><ul><ul><li>If you lose your data, corporate stability is lost </li></ul></ul><ul><ul><li>Revenues suffer when systems are down </li></ul></ul><ul><li>How can consolidation save $$$ ? </li></ul><ul><ul><li>Less Hardware </li></ul></ul><ul><ul><li>Fewer IT staff </li></ul></ul><ul><ul><li>Reduced Energy Consumption </li></ul></ul><ul><li>How do you choose? </li></ul><ul><ul><li>Storage Area Networks (Fibre Channel or iSCSI) </li></ul></ul><ul><ul><li>Virtualization (VMware, Virtual Iron, Hyper-V) </li></ul></ul>copyright I/O Continuity Group, LLC
    14. 14. Storage Basics <ul><li>Every operating system and application NEEDS a DISK to hold data: </li></ul><ul><ul><ul><li>Web sites, e-mail servers, databases, video recordings, etc </li></ul></ul></ul><ul><li>What happens when data grows quickly or disks get full ? </li></ul><ul><ul><ul><li>Data keeps growing </li></ul></ul></ul><ul><li>Adding more disks can lead to interruptions and downtime . </li></ul><ul><li>Server becomes unmanageable when it is difficult to predict storage needs. </li></ul>copyright I/O Continuity Group, LLC Consolidated Not Consolidated
    15. 15. Pre-SAN=Direct-Attached Storage <ul><li>One-to-one model leads to “ server sprawl ” when simply more disks may be needed. </li></ul><ul><li>Servers are each attached directly to dedicated storage. </li></ul><ul><li>No disk sharing among servers means manual management. </li></ul><ul><li>No dynamic scalability/growth </li></ul><ul><li>Difficult to know future server capacity needs upfront </li></ul>copyright I/O Continuity Group, LLC Servers Not sharing storage Storage Array holding disks Storage Array holding disks
    16. 16. What is a Storage Area Network? <ul><li>Storage Area Networks (SANs) consolidate disks on their own high-speed dedicated network . </li></ul><ul><li>Storage array allows addition of more disks on-the-fly . </li></ul><ul><li>Servers can connect to more disk space without rebooting. </li></ul><ul><li>Move more data faster and more efficiently. </li></ul><ul><li>The “de facto” storage solution. </li></ul>copyright I/O Continuity Group, LLC Servers Switches Storage Array holding disks HBA’s HBA’s
    17. 17. SAN Reliability <ul><li>Hardware </li></ul><ul><li>All components are duplicated (two Server HBA’s, two Switches, two Storage Controllers) so if one fails the other part takes over seamless ly. </li></ul><ul><li>Vendors receive automatic notification of the failure across the internet with rapid resplacement time. </li></ul><ul><li>When a new server is added there need for an experienced IT technician. </li></ul><ul><li>Management </li></ul><ul><li>Dynamic storage means anytime a server requires more capacity, the storage array can provide it instantly . </li></ul><ul><li>The server operating system is able to rescan to add the new disk volume without rebooting . </li></ul><ul><li>When adding disk capacity an experienced IT technician is needed. </li></ul>copyright I/O Continuity Group, LLC
    18. 18. DAS vs SAN Features <ul><li>DAS </li></ul><ul><li>Standalone disk enclosures </li></ul><ul><li>One-to-one model – no switched network </li></ul><ul><li>Hardware intensive </li></ul><ul><li>Management intensive </li></ul><ul><li>No redundancy (expect downtime) </li></ul><ul><li>Capacity , management and disk allocation is not seamless </li></ul><ul><li>Average speed/bandwidth 200 MB/s (with overhead) </li></ul><ul><li>SAN </li></ul><ul><li>Consolidated disk enclosures </li></ul><ul><li>One-to-many model with switched network </li></ul><ul><li>Hardware shared </li></ul><ul><li>Seamless management </li></ul><ul><li>No single point of failure (no downtime) “Runs by itself” </li></ul><ul><li>SAN foundation is required for virtualization </li></ul><ul><li>Average speed/bandwidth up to 800 MB/s (less overhead) </li></ul>copyright I/O Continuity Group, LLC
    19. 19. SAN Architecture <ul><li>Current “de facto” storage design </li></ul><ul><li>Price has come down approx 80% in 8 yrs </li></ul><ul><li>All devices must be compatible </li></ul><ul><li>Two connections to end devices– no single point of failure </li></ul><ul><li>Dynamic scalability/growth through plug-n-play disk shelves </li></ul><ul><li>Servers simply rescan for more disk space </li></ul>copyright I/O Continuity Group, LLC Servers Switches Storage Array holding disks HBA’s HBA’s
    20. 20. Types of SAN Switches <ul><li>Fibre Channel SAN </li></ul><ul><li>Fast Optical switches </li></ul><ul><li>Bandwidth 200- 800 MB/s </li></ul><ul><li>Low latency (quick response) </li></ul><ul><li>More expensive </li></ul><ul><li>Supports demanding workloads </li></ul><ul><li>Mission-critical server applications </li></ul><ul><li>Limited distances 500 km </li></ul><ul><li>IP SAN (iSCSI) </li></ul><ul><li>LAN/WAN Switches (GigE) </li></ul><ul><li>Bandwidth avg 100 MB/s </li></ul><ul><li>High latency (more processing overhead in software) </li></ul><ul><li>Less expensive </li></ul><ul><li>Supports less complex workloads </li></ul><ul><li>Second-tier server applications ( ¼ performance for ¼ price) </li></ul><ul><li>Max distance unlimited </li></ul>copyright I/O Continuity Group, LLC
    21. 21. SAN vs iSCSI Stacks copyright I/O Continuity Group, LLC SAN is fast and robust with minimal network overhead. iSCSI is “bloated” protocol with high network overhead.
    22. 22. <ul><li>SCSI to IP packet </li></ul><ul><li>Software initiators </li></ul><ul><ul><li>Built-in NICs (teaming) </li></ul></ul><ul><ul><li>CPU overhead/latency </li></ul></ul><ul><li>Hardware HBA initiators </li></ul><ul><ul><li>Offloads CPU processing </li></ul></ul><ul><ul><li>MPIO multipathing </li></ul></ul>Server Host Bus Adapters <ul><li>Fibre Channel HBA’s </li></ul><ul><li>SCSI to Fibre Channel protocol </li></ul><ul><li>Hardware initiator </li></ul><ul><li>Requires server PCI slot </li></ul><ul><li>Speeds: 200/400/800 MB/s </li></ul><ul><li>Bus technology </li></ul><ul><ul><li>PCI Express- pt-to-pt </li></ul></ul><ul><li>“ Multipathing” load balancing. </li></ul><ul><li>iSCSI Initiators </li></ul>copyright I/O Continuity Group, LLC
    23. 23. Types of Disks and Arrays <ul><li>ATA/IDE – mostly desktops </li></ul><ul><li>Parallel SCSI – slower data transfer (200 MB/s) </li></ul><ul><li>SATA (Serial ATA) – low-cost FC drives </li></ul><ul><li>SAS (Serial attached SCSI) – point-to-point </li></ul><ul><li>FC (fibre channel) – faster 400 MB/s </li></ul><ul><ul><li>RPM speeds 10,000-15,000 </li></ul></ul><ul><ul><li>If a disk or hardware part fails, the vendor automatically sends a replacement </li></ul></ul>copyright I/O Continuity Group, LLC
    24. 24. Top-to-bottom approach <ul><li>Evaluate your current server/storage arrangement and data growth </li></ul><ul><li>Prioritize application importance </li></ul><ul><li>Measure server workloads and current performance </li></ul><ul><li>Tailored storage design: assign each server to the proper storage “tier” (see next slide) </li></ul><ul><li>Match current and future capacity needs to vendor storage array options. </li></ul>copyright I/O Continuity Group, LLC
    25. 25. Tiered Storage Strategy copyright I/O Continuity Group, LLC Tier 1 High end, Mission-critical Tier 2 High-Mid range Fibre Channel disk Local replication Tier 3 ATA Low-cost Fibre Channel Tier 4 Static, Content-addressed storage Tier 5 Archives and Tape Availability <ul><li>Seconds to minutes </li></ul><ul><li>Minutes to hours </li></ul><ul><li>Hours </li></ul><ul><li>Hours </li></ul><ul><li>Hours to days </li></ul>Performance <ul><li>Dynamic workloads </li></ul><ul><li>Heavy transaction volume </li></ul><ul><li>High performance </li></ul><ul><li>Constant workloads </li></ul><ul><li>More read access than writes </li></ul><ul><li>Moderate performance </li></ul><ul><li>More read access than writes </li></ul><ul><li>Internet performance </li></ul><ul><li>Not applicable </li></ul>Recovery Point <ul><li>Seconds </li></ul><ul><li>Seconds to minutes </li></ul><ul><li>Minutes to hours </li></ul><ul><li>Up to 24 hours </li></ul><ul><li>Up to 72 hours </li></ul>
    26. 26. Questions to Ask <ul><li>How much storage do I have now? </li></ul><ul><li>How quickly is it growing? </li></ul><ul><li>What are my business objectives? </li></ul><ul><li>Is my backup window shrinking? </li></ul><ul><li>How many vendor solutions are going into the mix and can my vendor support them all? </li></ul><ul><li>Do all the products work together? </li></ul><ul><li>What is the payback period (ROI/TCO) and SLAs? </li></ul><ul><li>How much administrative support do I need? </li></ul>copyright I/O Continuity Group, LLC
    27. 27. Traditional Direct-attached Hosts External SCSI Storage Array Parallel SCSI connection LAN Each server is separately attached to a dedicated SCSI storage array requiring high storage maintenance with difficult scalability and provisioning. Different vendor platforms cannot share the same external array. copyright I/O Continuity Group, LLC
    28. 28. FC SAN- attached Hosts FC Storage Array FC Switches 200 to 400 MB/s Tape Library Servers with NICs and FC HBA’s LAN FC SAN’s offer a dedicated block-level infrastructure independent of the LAN. Brocade copyright I/O Continuity Group, LLC
    29. 29. Why Virtualization? <ul><li>Next level of consolidation running on top of SAN for best performance and automation. </li></ul><ul><li>Consolidate multiple physical machines into “Virtual Machines” on fewer physical servers . </li></ul><ul><li>Allows rapid deployment of new applications by simple right click operation. </li></ul><ul><li>Less hardware means: </li></ul><ul><ul><li>Less energy consumption , heat-generated to be cooled, datacenter space occupied and IT staff. </li></ul></ul><ul><ul><li>ROI and TCO are maximized </li></ul></ul>copyright I/O Continuity Group, LLC
    30. 30. Server Consolidation <ul><li>New virtualization solutions gaining popularity </li></ul><ul><ul><li>VMware – Fortune 100 market niche </li></ul></ul><ul><ul><li>Virtual Iron – SMB market niche </li></ul></ul><ul><ul><li>Windows Server 2008 Hyper-V – July RTM </li></ul></ul><ul><li>Must have “shared storage” SAN in place to optimize key virtualization features: </li></ul><ul><ul><li>Live Server migration (move virtual machines on-the-fly) </li></ul></ul><ul><ul><li>Load balancing workloads </li></ul></ul><ul><ul><li>High Availability for no downtime </li></ul></ul>copyright I/O Continuity Group, LLC
    31. 31. Physical Servers represent the Before illustration. “ Converter” migrates the physical machines over to Virtual Machines running on ESX in the After illustration. copyright I/O Continuity Group, LLC
    32. 32. Virtualization-Value Proposition <ul><li>Automation and management </li></ul><ul><li>Obtain much higher utilization out of your hardware assets while building a more robust infrastructure at the same time </li></ul><ul><ul><li>If a physical server fails, a “Virtual Machine” moves itself </li></ul></ul><ul><ul><li>Once installed, solution runs by itself* </li></ul></ul><ul><ul><li>Infrastructure become management-free </li></ul></ul><ul><li>** Requires a properly designed SAN foundation </li></ul><ul><li>Initial complexity can be simplified </li></ul><ul><ul><li>One-time migration of physical servers to virtual servers </li></ul></ul><ul><ul><li>One vendor organizing all the details. </li></ul></ul>copyright I/O Continuity Group, LLC
    33. 33. Phases of Virtualization Adoption <ul><li>Separate software from hardware , with ability to have multiple copies of a working software configuration that can be cloned. </li></ul><ul><li>Separate software from the server, with the ability to run more than one isolated application on a physical server (utilization levels). </li></ul><ul><li>Ability to run software in virtual machines and dynamically move across physical boundaries. </li></ul><ul><li>Service broken things without interruption of server & dynamic allocation of apps & new capacity. </li></ul><ul><li>Manage and automate how application goes through disaster recovery . </li></ul>copyright I/O Continuity Group, LLC
    34. 34. SAN + Virtualized Hosts FC Storage Array FC Switches 200 to 400 MB/s Tape Library LAN FC SAN’s offer a dedicated block-level infrastructure independent of the LAN. Brocade copyright I/O Continuity Group, LLC 2 to 20 VM’s on each server Virtualization server Virtualization server Virtualization server
    35. 35. SAN Extensions <ul><li>FC SANs are limited in their connection distance to around 500 km. </li></ul><ul><li>Disaster recovery sites may exceed FC distance from your datacenter. </li></ul><ul><li>Data replication solutions can bridge the gap moving data from the storage stack to the standard networking stack. </li></ul>copyright I/O Continuity Group, LLC WAN connection Datacenter Co-Lo
    36. 36. Questions to ask <ul><li>How many servers do I currently have and how many do I add every year? (aka server sprawl) </li></ul><ul><li>How much time do IT staff spend setting up new servers with operating system and applications? </li></ul><ul><li>How often do my servers go down? </li></ul><ul><li>Is our IT budget shrinking? </li></ul><ul><li>How difficult is it to convert a physical machine to a virtual machine with each option? </li></ul><ul><li>What hardware and guest OS’s are supported? </li></ul>copyright I/O Continuity Group, LLC
    37. 37. The Technical Expertise <ul><li>We are vendor-certified on supported platforms and hardware, including: </li></ul>copyright I/O Continuity Group, LLC
    38. 38. Vendor Neutral <ul><li>There are four main benefits to designing SAN’s independent of any single equipment vendor. </li></ul><ul><li>The relative importance of these benefits will change depending on your priorities and which vendors you choose. The benefits in some cases * are: </li></ul><ul><ul><li>Lower costs </li></ul></ul><ul><ul><li>Getting the best possible technology </li></ul></ul><ul><ul><li>Greater flexibility for future technology improvements </li></ul></ul><ul><ul><li>Non-proprietary and non-exclusivity models </li></ul></ul><ul><ul><li>* DOES NOT APPLY TO ALL VENDORS </li></ul></ul>copyright I/O Continuity Group, LLC
    39. 39. Trusted Advisor <ul><li>I/O Continuity Group will help you: </li></ul><ul><ul><li>Integrate a “no downtime” solution </li></ul></ul><ul><ul><li>Demystify technology and jargon </li></ul></ul><ul><ul><li>Blend all technologies into one whole strategy </li></ul></ul><ul><ul><li>Save costs on equipment, energy and services </li></ul></ul><ul><ul><li>Increase your ROI while reducing your TCO </li></ul></ul><ul><li>Once SANs are setup, they run non-disruptively with minimal administration and scale (grow) dynamically. </li></ul><ul><ul><li>The question is not IF but WHEN you should adopt or expand a SAN. </li></ul></ul>copyright I/O Continuity Group, LLC
    40. 40. I/O Continuity Group Process copyright I/O Continuity Group, LLC Assess Design Implement Train Manage <ul><li>Assess: New or existing SAN </li></ul><ul><li>Design: Follow vendor roadmaps </li></ul><ul><li>Implement : Apply best practices </li></ul><ul><li>Train : IT staff to provision storage and troubleshoot </li></ul><ul><li>Manage : Easy-of-use with seamlessly scalable solution </li></ul>End-to-end Data Center Management
    41. 41. The Engagement Process <ul><li>The transformation begins with our services </li></ul><ul><ul><li>From simple “starter” SAN solutions </li></ul></ul><ul><ul><li>To complex, scalable development and virtualization. </li></ul></ul><ul><li>We make the process easy to understand: </li></ul><ul><ul><li>Free pre-assessment </li></ul></ul><ul><ul><li>Design based on business objectives </li></ul></ul><ul><ul><li>Deploy and integrate entire “best practices” solution </li></ul></ul><ul><ul><li>Train IT staff to “confidently” administer and monitor </li></ul></ul><ul><ul><li>Maintenance contract for dynamic storage provisioning </li></ul></ul><ul><li>Once deployed we will help you maintain and expand your capacity dynamically over time. </li></ul>copyright I/O Continuity Group, LLC
    42. 42. Visit www.iocontinuitygroup.com Let us help you and your customers flip the switch! copyright I/O Continuity Group, LLC
    43. 43. David Paquette, Technical Analyst copyright I/O Continuity Group, LLC
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