Tuesday, January 26, 2010

If you think Converged Infrastructure & Fabrics are niche, guess again

A few weeks ago, I Tweeted about an analyst conversation where it was looking like the market for Fabric Computing / Unified Computing would be growing rapidly in the foreseeable future.

Another analyst friend of mine quickly commented back – sarcastically – that the market was sure to be in the billions of dollars.

I was feeling a little unsure about this market until a few weeks later when I was shown a technology report from Thomas Weisel Partners. Although the market definition for converged infrastructure (also known as Unified Computing) was still forming, TWP felt that sales of Converged Infrastructure solutions could rise as high as $15 billion by the end of 2014.  Billion with a “b”?  Right-on…

Then there is a report by Gartner Research on fabric-based computing… which estimated that by the end of 2012, roughly 30% of the world’s top 2000 companies would have some form of fabric-based computing architecture. (Under the heading of “fabric” falls Unified Computing as well as Converged Infrastructure).

So, why is the market (for fabric computing, converged infrastructure, unified computing) still considered so new in the market, yet forecast to be so booming in 2-4 years?

First of all, what we’re talking about here are systems like Cisco UCS, Egenera PAN Manager, HP VirtualConnect, IBM Open Fabric Manager, and a few others. At the heart of each system is technology (sometimes HW, sometimes SW, sometimes mixed) that virtualizes I/O and leverages converged networking.

And why are vendors all chasing this approach? For a number of reasons --
  1. It’s incredibly complementary to virtualization: in the same way that the hypervisor changed how SW is abstracted, provisioned, managed and migrated, Converged Infrastructure changes how IO/networking/connectivity is assembled and managed. This gives vendors a valuable set of new offerings, and can tie management of infrastructure to management of VMs – yielding end-to-end abstraction of the entire data center. Roughly as much $ is spent managing infrastructure as it is managing software… to the TAM is huge here.
  2. It changes how availability is delivered: By manipulating IO addressing, networking and connectivity, Converged Infrastructure Management can re-provision failed hardware – either in the form of physical servers, or indeed, entire environments. Thus, Converged Infrastructure has the potential to displace a big chunk of traditional clustering software… (nearly a $ billion, if you follow IDC’s estimates)
  3. It changes how networks are physically wired and managed: Converged Infrastructure uses fewer IO components (either a single LOM or a single CNA), converged network protocols, fewer cables, and generally fewer switches. This yields a lower CapEx investment, and a commensurate lower OpEx to manage. The opportunity to sell alternative approaches to each of these technologies is immense.
  4. Converged Infrastructure is highly complementary to shared storage: the pervasiveness of SAN storage is a major enabler of a more virtual/flexible data center. As physical/virtual servers move, migrate and scale, storage simply follows.  An increasing ratio of servers – especially blades – are being shipped with HBAs, indicating that SAN use is on the upswing.
As to evidence that this market is shaping-up, we need only look to the magnitude of investment that Cisco, Egenera, HP, IBM – and even Emulex and Qlogic – are pouring into this market. Methinks we’ll see the hockey-stick shortly.

Monday, January 4, 2010

Hosting & Cloud Computing market index: Update

Last month I proposed that another way to measure adoption of cloud computing (or, at least, expectations of adoption) was to look at the stock market performance of a bundle of publicly-traded service provider companies.

Since then, I've expanded the list, and carried the range back 24 months.

The total list (the "broad hosting index") consists of: Digital Realty Trust, DuPont Fabros, Equinix, Internap, Iomart, Macquarie Telecom, Navisite, Rackspace, Savvis, Switch & Data, Telecity, and Terremark.  I also baselined my "virtual" fund against the NASDAQ index. I created another virtual fund (a subset list of the above) consisting of Equinix, Navisite, Rackspace, Savvis and Terremark - representing service providers with substantial businesses in the Cloud hosting space as well.


Here are some interesting observations of the value change of US$100 invested equally across each index:

Since Jan 2008:
  • Nasdaq:  + ~14%
  • Broad Hosting index: + ~90%
  • Cloud Subset: + ~50%
But, I also looked at the change since the market bottomed-out in March of 2009. Since then, the picture is a tad different:
  • Nasdaq: + ~ 55%
  • Broad Hosting index:  + ~135%
  • Cloud Subset:  +~ 115%
These numbers tell me that the performance (or at least, expectations of performance) in the hosting space far exceeds the broader NASDAQ technology sector.  Interestingly, the "cloud index" under-performs the broader index. No explanation here other than the fact that we're dealing here with a statistically low number of companies, and a few "high performers" in the broader index seem to be lifting it above the cloud index.

I'll plan on updating this periodically. Comments, additions, etc. welcome!

Wednesday, December 16, 2009

Hosting & Cloud Computing: Numbers Don't Lie

There's lots of chatter in the market today regarding the value of using outside data centers, hosting services and cloud computing.  But listening to pundits/analysts trying to objectively predict true value left me hollow.

While I'm not an investment professional, I do know that the stock market doesn't lie.... so instead, I thought I'd look at a bundle of stocks from publicly-traded data center companies in the data center space, and compare against a market benchmark.

I chose companies on publicly-traded markets in both the US as well as in Europe. My criteria were somewhat subjective, but basically the companies had to have a primary business operating data centers. I also excluded Telcos because it is difficult to separate their carrier revenues relative to hosting revenues. So, my initial "virtual fund" consists of 12 companies: Digital Realty Trust; DuPont Fabros; Equinix; Internap; Iomart; Macquarie Telecom; Navisite; Rackspace; Savvis; Switch & Data; Telecity; Terremark.


I also took a 5-company subset of these public companies that had significant offerings in the cloud computing space (Equinix; Navisite; Rackspace; Savvis; Terremark). I labeled this "virtual fund" a cloud-only index.

The chart at right is my best attempt to (a) tabulate historic end-of-month closing price of each stock; (b) calculate month-to-month percentage gains for each; (c) create "virtual funds" where $100 would be invested equally across each vehicle (initially $8.33 in each of the 12 hosting stocks, and initially $20 in each of the 5 cloud-related stocks). The benchmark I used is the Nasdaq index, also assuming an initial $100 investment.

Not surprisingly (for me, anyway) both "indexes" are outperforming the Nasdaq -- perhaps proving the thesis that datacenter operation and application outsourcing is indeed a growth market (or at least a speculative growth market?) as compared to the general technology market. What would be equally useful (but not an analysis I've done) is to chart gross revenues for the Index companies. This would be a telling barometer of actual business.

I'll continue to update this index at the end of each month. Comments, additions and suggestions welcome!

Tuesday, December 8, 2009

Emergence of Fabric as an IT Management Enabler

Last week I attended Gartner's annual Data Center Conference in Las Vegas. Four days packed with presentations and networking (of the social kind). Lots of talk about cloud computing, IT operations, virtualization and more.

Surprisingly a number of sessions directly referenced compute Fabrics -- including "The Future of Server Platforms" (Andy Butler), "Blade Servers and Fabrics - Evolution or Revolution" (Jeff Hewitt), and "Integrated Infrastructure Strengths and Challenges" (Paquet, Dawson, Haight, Zaffros). All very substantive analyses of what fabrics _are_... but very little discussion of why they're _important_. In fact, Compute fabrics might just be the next big thing after OS virtualization.

Think of it this way: Fabric Computing is the componentization and abstraction of infrastructure (such as CPU, Memory, Network and Storage). These components can then be logically re-configured as-needed. This is very much analogous to how OS virtualization componentizes and abstracts OS and application software stacks.

However, the focus by most fabric-related vendors thus far is simply on the most fundamental level of fabric computing, which is simply virtualizing I/O and using a converged network. This is the same initial level of sophistication when the industry believed that OS visualization was only about the hypervisor. Rather, we need to take a longer view of fabric computing and think about higher-level value we create by manipulating the infrastructure similar to how we manipulate VMs. A number of heady thinkers supporting the concept of Infrastructure 2.0 are already beginning to crack some of these revolutionary issues.

Enter: Fabric as an Enabler


If we think of "fabric computing" as abstraction and orchestration of IT components, then there is a logical progression of what gets abstracted, and then, what services can be constructed via logically manipulating the pieces:

1. Virtualizing I/O and converging the transport
This is just the first step, not the destination. Virtualizing I/O means no more stateful NICs and HBAs on the server; rather, the I/O presents itself to the OS as any number of configurable devices/ports, and I/O + data flow over a single physical wire. Transport can be Ethernet, FCoE, Infiniband, or others. In this manner, the network connectivity state of the physical server can be simplified and changed nearly instantaneously.
2. Virtual networking
The next step is to define in software the converged network, its switching, and even network devices such as load balancers. The result is a "wire-once" physical network topology, but with an infinitely reconfigurable logical topology. This permits physically flatter networks. Provisioning of the network, VLANs, IP load balancing, etc. can all be simplified and accomplished via software as well.
3. Unified (or Converged) Computing
Now things get interesting: Now that we can manipulate the server's I/O state and its network connections, we can couple that with creating software-based profiles of complete server configurations -- literally defining the server, its I/O, networking, storage connections, and even what software boots on it. (Software being either a virtual host, or a traditional native OS). Having defined the entire server profile in software, we can even define the entire environment's profile.
Defining servers and environments in software allows us to provide (1) High Availability: With a hardware failure, we can simply re-provision a server configuration to another server in seconds -- whether or not that server was running a VM host, or a native OS. (2) Disaster Recovery: we can re-constitute an environment of server profiles, including all of their networking, ports, addresses, etc., even if that environment hosts VMs and native OS's.
 4. Unified Management
To achieve the ultimate in an agile IT environment, there's one remaining step: To orchestrate the management of infrastructure with the management of workloads. I think of this as an ideal Infrastructure-as-a-Service -- physical infrastructure that adapts to the needs of workloads, scaling up/out as conditions warrant, and providing workload-agnostic HA and DR.  From an IT agility perspective, we would now be able to abstract nearly all components of a modern data center, and logically combine them on-the-fly as business demands require.
Getting back to the Gartner conference, I now realize one very big missing link -- while Gartner has been promoting their Real-Time Infrastructure (RTI) model now for some time, they have yet to link it to the coming revolution that will be enabled by fabric computing.  Maybe we'll see some hint of this next year.

Thursday, November 19, 2009

Infrastructure Virtualization: The Next Logical Step

2010 will be an interesting year for virtualization - but not from the perspective you're probably thinking. It will be the year of the virtual infrastructure, not of the virtual machine.
Yes, the O/S virtualization market is maturing as it transforms how servers and applications are managed. The major vendors all offer hypervisors and management to accomplish server consolidation, live migration, HA, lifecycle management, lab management, and more. And they're even offering higher-level tools for DR and cloud computing... Read more on VMBlog.com

Tuesday, October 27, 2009

Infrastructure 2.0 – A Virtual Analogy

Is OS virtualization an end in itself? Is it both necessary and sufficient for all things Cloud and IaaS? Is it the panacea IT Operations has been looking for? From where I see it, abstracting the OS is certainly a great start, but it’s actually only 50% of the goal.

To a degree, OS virtualization is the “shiny metal object” de jure in that it’s captivating everyone’s attention. It is of course very valuable, and is causing an important inflection point in datacenter operations and economics. But there is a less-visible, less sexy side to datacenter operations and economics that lies “below” the CPU in the stack...

Read more on the Infrastructure 2.0 Blog

Tuesday, October 6, 2009

Differing Target Uses for IT Automation Types

One of the most oft-repeated themes at this year's VMworld was that of "automation." Everybody claimed they had it, but on closer investigation it had any number of poorly-defined meanings.

A specific angle I want to address here is that of infrastructure automation; that is, the dynamic manipulation of physical resources (virtualized or not) such as I/O, networking, load balancing, and storage connections - Sometimes referred to as "Infrastructure 2.0". Why is this important? Although automation of software (such as provisioning & manipulation of VMs/applications) usually captures attention, remember that there is a whole set of physical datacenter infrastructure layers that IT Ops has to deal with as well. When a new server (physical or virtual) is created, much of this infrastructure also has to be provisioned to support it.

There are 2 fundamental approaches to automation I'll compare/contrast: Let's loosely call them "In-Place" Infrastructure Automation, and Virtualized Infrastructure Automation.

Confession: I am a champion of IT automation. The industry has evolved into a morass of technologies and resulting complexity; the way applications (and datacenters) are constructed today is not the way a greenfield thinker would do it. Datacenters are stove-piped, hand-crafted, tightly-controlled and reasonably delicate. Automating how IT operates is the only way out -- hence the excitement over cloud computing, utility infrastructure, and the "everything-as-a-Service" movement. These technology initiatives are clear indications that IT operations desires a way to "escape" having to manage its mess.

At a high-level, automation has major top-level advantages: Lower steady-state OpEx, greater capital efficiency, and greater energy efficiency. And, automation also presents challenges typical of paradigm changes: distrust, organizational upheaval, financial and business changes. The art/science of introducing automation into an existing organization is to reap the benefits, and mitigate the challenges.

As infrastructure automation moves forward, it appears to be bifurcating along two different philosophies. Each is valid, but appropriate for differing types of uses:
  • "In-place" infrastructure automation: (distinct from run-book automation) Seeks to automate existing physical assets, deriving its value from masking the operational and physical complexity via orchestrating in-place resources. That is, it takes the physical topology (servers, I/O, ports, addressing, cabling, switches, VMs etc.) and orchestrate things to optimize a variable such as an SLA, energy consumption, etc.
  • Virtualized Infrastructure automation: Seeks to first virtualize the infrastructure (the assets as above) and then automate their creation, configuration and retirement. That is, I/O is virtualized, networking is frequently converged (i.e. a Fabric), and network switches, load balancers, etc. are virtualized as well.
Each of these two approaches has properties with pros and cons with which I'm familiar -- having worked for companies in each space. I'll try to elucidate a few of the "high points" for each:

"In-Place" Infrastructure Automation:
Examples: Cassatt (now part of CA), Scalent
  • Automates existing assets: Usually, there is no need to acquire new network or server hardware (although not all hardware will be compatible with the automation software). Thus "in-place" assets are generally re-purposed more efficiently than they would be in a manually-controlled scenario. Clearly this is one of the largest value propositions for this approach - automate what you already own.
  • Masking underlying complexity: A double-edged sword, I suppose, is that while "in-place" automation simplifies operation and streamlines efficiency, the datacenter's underlying complexity is still there - e.g. the same redundant (and sometimes sub-optimal) assets to maintain, same cabling, same multi-layer switching, same physical limitations, etc.
  • Alters security hierarchy: Since assets such as switches will now be controlled by machine (i.e. the automation SW automatically manipulates addresses and ports) this architecture will necessarily modify the security hierarchy, single-point-of-failure risks, etc. All assets fall under the command of the automation software controller.
  • Broad, but not complete, flexibility: Because this approach manipulates existing physical assets, certain physical limitations must remain in the datacenter. For example, physical server NICs and HBAs are what they are, and can't be altered. Or, for example, certain network topologies might not be able to be perfectly replicated if physical topologies don't closely match...or, if physical load balancers aren't available, servers/ports won't have access to them. Nonetheless, if properly architected, some of these limitations can be mitigated.
  • Use with OS virtualization: This approach usually takes control of the VMM as well, e.g. takes control of the VM management software, or directly controls the VMs itself. So, for example, you'd allow the automation manager to manipulate VMs, rather than vSphere.
  • Installation: Usually more complex to set up/maintain because all assets, versions, and physical topography necessarily need to be discovered and cataloged. But once running, the system will essentially maintain its own CMDB.

Virtualized Infrastructure Automation:
Examples: Cisco UCS, Egenera, Xsigo
  • Reduction/elimination of IT components: The good news here is that through virtualizing infrastructure, redundant components can be completely eliminated. For example, only a single I/O card with a single cable is needed per server, because they can be virtualized/presented to the CPU as any number of virtual connections and networks. And, a single virtualized switching node can present itself as any number of switches and load balancers for both storage and network data.
  • Complete flexibility in configuration: By abstracting infrastructure assets, they can be built/retired/repurposed on-demand. e.g. networking, load balancing, etc. can be created at-will with essentially arbitrary topologies.
  • Consistent/complementary to OS Virtualization models: If you think about it, virtualized infrastructure control is pretty complementary to OS virtualization. While OS virtualization logically defines servers (which can be consolidated, moved, duplicated, etc.), infrastructure virtualization similarly defines the "plumbing" and allows I/O and network consolidation, as well as movement/duplication of physical server properties to other locations.
  • New networking model: One thing to keep in mind is that with a completely virtualized/converged network, the way the network (and its security) is operationally managed changes. Organizations may have to re-think how (and who) creates and repurposes network assets. (Somewhat similar to coping with "VM Sprawl" in the software virtualization domain)
  • Use with OS virtualization: This approach is usually 'agnostic' to the software payload of the physical server, and is therefore neutral/indifferent to the VMM in place. Frequently the two can be coordinated, however.
  • Installation: Usually relatively simple. Few components per server, few cables, especially in a 'green field' deployment. Installation of software/BIOS on physical servers is probably not what you're used to, though.
Ideal use of these two approaches differs too. Obviously, "In-Place" Infrastructure Automation is probably best-suited for an existing set of complex datacenter assets - especially in a Dev/Test environment. As you'd expect , a number of existing lab automation products out there target this market. On the other hand Virtual Infrastructure Automation can certainly be deployed on existing assets, but its real value is for new installations where minimal hardware/cabling/networking can be designed-in from the ground up. Most of these products are designed for production data centers, as well as cloud/utility infrastructures.

My overall sense of the market is that adoption of "in-place" automation will be driven primarily by progressive IT staffs that want a taste of automation and service-level management. Virtualized Infrastructure Automation adoption, on the other hand, will tend to ride the technology wave driven both by networking vendors and OS virtualization vendors.

Stay tuned for additional product analyses in this space...