business value of blade (livre blanc en anglais)
DESCRIPTION
Ce livre blanc IDC examine comment huit entreprises de taille moyenne des secteurs de l'éducation, santé, médias, distribution, recherche et télécommunications (prestataire de service) ont réussi à réduire leur coût d’infrastructure IT annuel par utilisateur de près de 25% en migrant vers une plate-forme blade.TRANSCRIPT
W H I T E P AP E R
B u s i n e s s V a l u e o f B l a d e
Sponsored by: HP
Jed Scaramella Randy Perry
April 2012
E X E C U T I V E S U M M A R Y
Today, a company's datacenter is tightly integrated with its day-to-day business
operations. Companies are increasingly looking to their IT as a means to gain a
competitive advantage in the market rather than simply as a means of supporting
business functions. IT applications and services have become a critical element in
how companies interact with their customers, deliver new products and services, and
improve their own workforce productivity.
Yet even though IT organizations are charged with delivering an expanding base of
workloads and seemingly higher degrees of service-level agreements (SLAs), they are
also challenged with constrained budgets and overburdened staffs. In response, IT
organizations must seek efficiencies in their operations and shift to a more agile
infrastructure that is flexible enough to adapt to future changes in the business.
Over the past decade, IDC has seen the industry move more toward distributed
environments as lower-cost x86 systems have increased their share of workloads.
While this migration has enabled customers to control capital expenditure with lower-
cost servers, the increased operational costs of managing the x86 base are taxing IT
budgets, making it difficult to fund and staff new initiatives.
This paper examines how eight midsize companies spanning the education,
healthcare, media, retail, research, and telecommunications (service provider)
industries were able to reduce their annual IT infrastructure cost per user by almost
25% by migrating to a blade platform. Reduced requirements for staff time and
resources, hardware infrastructure, and facilities drove these savings.
The integrated nature of the blade platform delivers efficiencies in system
management, monitoring, and provisioning. The HP BladeSystem utilizes HP Insight
Management software to automate key management processes, including a system's
physical deployment, configuration, and problem management. As measured by IT
infrastructure cost per user per year, companies implementing blades saved an
average of $55 per user per year in reduced IT infrastructure staff time (as the
company can apply that saved time to other business IT initiatives) and $56 per user
per year in reduced hardware and software costs.
HP BladeSystem ProLiant server blades enabled these companies to consolidate
physical servers and components while still maintaining the same workload capacity
and performance. Blade technologies, such as HP Virtual Connect, reduced
networking and hardware costs by enabling up to four FlexNICs per physical NIC
port; a single HP Virtual Connect interconnect module eliminates four switches.
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The study also demonstrated that virtualizing HP ProLiant servers further improved IT
infrastructure savings. By deploying a greater number of virtual machines (VMs) per
physical server blade, IT organizations were able to further reduce IT infrastructure
savings by 17.1%.
IDC research indicates that available power, not floor space, determines the extent of
a datacenter's capacity. HP Thermal Logic technology enables the HP BladeSystem
to pool and share the power and cooling resources. The combined solution then
utilizes management software to efficiently deliver those resources based on the
performance level required. This study shows how customers reduced power costs
and avoided facilities expansion, saving an average of $17 per user per year.
In addition to illustrating the IT operations cost savings, the study also shows how
migrating to a blade environment improved IT availability. Relative to traditional server
environments, customers with virtualized blades incurred 75% fewer server incidents
per year and reduced server downtime hours by an average of over 80%.
IDC believes that the HP BladeSystem delivers improved return on infrastructure
investment for customers, creating a flexible IT environment that provides for both
easier IT management and easier adaptation to the changing needs of the business.
IDC estimates that over a three-year period, the companies in the study saw their
implementation of a bladed infrastructure deliver a return on investment (ROI) of over
250%, and cumulative savings from the implementation paid back the full investment
within a period of just over 10 months.
W H AT ' S C H AN G I N G T H E G AM E ?
O p e r a t i n g T o d a y ' s I T E n v i r o n m e n t w i t h
L i m i t e d B u d g e t a n d R e s o u r c e s
In today's competitive marketplace, customers are evaluating how their IT
organization can run more efficiently and drive additional value to the business. First
among the challenges facing the managers of IT organizations is the fact that even
with constrained budgets, they still must continue to deliver on increasingly stringent
SLAs, build new applications, and maintain high levels of application availability. To
respond to these challenges, IT managers must build their infrastructure on platforms
that can deliver operational efficiencies and maintain the flexibility to adapt to future
changes in business demands.
Furthermore, the datacenter has become more tightly integrated with day-to-day
business operations. IDC has observed that companies are placing greater emphasis
on the operations of their IT environments not only to gain a competitive advantage in
the market but also because IT services and applications have become a critical
element in day-to-day business and workforce productivity. An unfortunate reality is
that enterprises are asking IT organizations to do more with less, pressuring them to
reduce their operational expenses. This can become a significant obstacle to
increasing application availability, improving service levels, and providing higher
levels of IT flexibility.
©2012 IDC #227508R1 3
C h a l l e n g e s w i t h D i s t r i b u t e d x 8 6 S e r v e r s
E n v i r o n m e n t s
Over the past decade, IDC has seen x86 servers account for an increasing share of
IT workloads. x86 servers started out as an extension of the PC market and provided
business units, which were previously unable to secure space on the larger systems,
the means to set up IT systems. Development on these platforms set in motion a
positive feedback loop that drove expansion of IT capabilities via x86 that in turn
drove still more development and innovation to the x86 platforms. This pattern has
resulted in an increasing number of IT applications migrating to x86 platforms.
Because the price point for smaller x86 systems is much lower than that of monolithic
business systems, customers have been able to use x86 to expand server capacity
while controlling their capital expenditure. However, this migration to a distributed
environment created a more complex infrastructure that resulted in higher operational
costs.
As Figure 1 illustrates, today's IT organizations face rising operational expenses,
power and cooling constraints that limit IT capacity expansion, and IT staffs
overburdened by manual tasks. The management and administration costs
associated with x86 servers have grown to eclipse costs in all other categories. The
personnel costs required to manage and maintain the x86 server base consume the
majority of IT budgets, leaving little time and few resources for value-add initiatives
such as building new applications.
Additionally, the power and cooling of servers is a top-of-mind issue for IT
organizations, as the growth in server energy expense has outpaced spending on
servers themselves; server energy expense grew at a compound annual growth rate
(CAGR) of 9.5% compared with a server revenue CAGR of -2.6%.
4 #227508R1 ©2012 IDC
F I G U R E 1
W o r l dw i d e S p e n d i n g o n S e r v e r s , P o w e r a n d C o o l i n g , a n d
M an a g e m en t / A d m i n i s t r a t i o n
Source: IDC, 2012
Future Requirements for a More Efficient IT Environment
These trends toward sprawl and higher costs for datacenter management have
significantly impacted the IT environment. Going forward, IT managers need to
implement solutions that can considerably reduce costs by:
Increasing IT hardware utilization. Research indicates that only a fraction of
most servers' total capacity is typically utilized in a distributed environment. The
overprovisioning results in wasted rack space as well as increased power,
cooling, bandwidth, and operational costs.
Simplifying management and increasing flexibility. As currently deployed,
most server configurations are static, hardwired, and difficult to change. Too
much manual coordination is required to maintain applications and server
configurations, involving too many people to perform too many manual steps.
Improving server energy efficiency. IDC finds that the primary driver behind
efforts to improve energy efficiency is to ensure the availability of IT to the
business by averting risks posed by power and cooling challenges. To avoid
costly new buildout, IT must deploy more systems with the current available
power.
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©2012 IDC #227508R1 5
These requirements become imperatives because distributed server environments
can often consume large amounts of space, power, and IT staff time. The costs
associated with provisioning, monitoring, and managing servers have escalated,
challenging IT organizations to seek systems and tools to help them lower the overall
cost of IT operations.
B L AD E S Y S T E M S D R I V E E F F I C I E N C Y AN D S I M P L I C I T Y T O T H E I T E N V I R O N M E N T
M e t h o d o l o g y
In the fall of 2010, IDC interviewed eight midsize companies, referred by HP, that had
migrated 19% to 100% of their server environment to blades. These United States–
based organizations represent experiences from the education, healthcare, media,
retail, research, and telecommunications (service provider) industries.
T h e R e s u l t s : B l a d e s D e l i v e r 2 5 % C o s t S a v i n g s
Efficiencies Across the IT Environment
The customer interviews and IDC ROI modeling make clear that blades deliver cost
savings in several areas (see Table 1); yet there are three main categories of
efficiency improvements:
IT staff time and resources. The integrated nature of the blade platform allows
for centralized management of all servers and components within the chassis.
The centralized management results in more efficient methods of provisioning,
monitoring, and managing. These efficiencies in turn reduce the amount of IT
staff time required for IT infrastructure administration, allowing companies to
apply that newly available staff time to other activities more directly related to the
business, such as business application expansion or enhancement. As stated
previously, companies implementing HP BladeSystem in their environment saved
an average of $55 per user per year in reduced IT infrastructure staff time.
IT hardware infrastructure. Migrating to a blade environment enables
customers to consolidate physical servers while maintaining the same workload
capacity and performance, which reduces capital expenditure on hardware. IT
organizations are able to improve IT resource utilization rates by reducing the
numbers of servers, a factor that is further enhanced through virtualization.
Companies implementing blades saved an average of $56 per user per year in
reduced hardware and software costs.
IT facilities. Blades reduce power and cooling consumption due to the integrated
platform and efficiencies gained through shared power and cooling components.
On average, companies in this study reduced power costs and avoided facilities
expansion, saving an average of $17 per user per year.
6 #227508R1 ©2012 IDC
T A B L E 1
S a m p l e D em o g r a ph i c s
Category Average
Employees 747
IT users (internal) 682
IT users (external) 166,792
Servers 179
% traditional physical 24
% blades physical 43
% blades virtualized 32
IT staff 43
Applications 15
Installed storage (terabytes) 429
Storage growth (average per year) 168%
Industries Education, healthcare, media, retail, research,
telecommunications (service provider)
Note: Values represent the mean for all respondents (8).
Source: IDC, 2011
As the data in Table 2 illustrates, IT organizations that migrated to HP BladeSystem
reduced their annual IT infrastructure cost per user by 24.9%. The greatest areas of
savings included facilities (56.8%), server hardware (49.5%), network hardware
(49.5%), and power and cooling (37.5%). Figure 2 presents the relative reduction in
various datacenter costs — facilities, hardware, software, power and cooling, etc. —
that survey participants experienced after implementing bladed infrastructures.
T A B L E 2
I T I n f r a s t r u c t u r e E x p en s e : A n n u a l C o s t p e r U s e r
Traditional
Environment ($)
Blade
Environment ($) Savings ($) % Savings
% of Additional
Savings from
Virtualizing
Blades
Server hardware 49 25 24 50 26
Software* 25 21 4 15 23
Facilities 26 11 15 57 10
Network hardware 20 10 10 50 0
Power and cooling 6 4 2 38 0
Management tools* 8 6 2 24 26
Storage 159 143 16 10 0
Total 293 220 73 25 17%
*Note: The software category includes license and maintenance fees for infrastructure software (exclusive of management
tools), application development, collaboration, business applications, etc. The management tools category includes
infrastructure software to manage (deploy, configure, monitor, etc.) systems, virtual environments, network, and storage.
Source: IDC, 2011
©2012 IDC #227508R1 7
F I G U R E 2
I T S a v i n g s f r o m B l a d e I n f r a s t r u c t u r e
Source: IDC, 2011
Virtua l izat ion Further Enhances IT Eff ic iencies
IDC has always believed that blades represent an excellent consolidation platform,
but they also excel in virtualized environments. IT organizations running virtualization
on blades were able to further reduce IT infrastructure, which resulted in additional
cost savings of 17.1% (refer back to Table 2). As an increasing number of VMs are
deployed per physical server blade, IT is able to further reduce hardware expenditure,
as well as licensing fees and the cost of tools, by purchasing the appropriate amount
of system software for the reduced hardware footprint.
Enhanced Connect iv ity
The blade platform is an integrated architecture that matches well with the goals of
virtualization, yet the running of a higher number of virtual machines on physical
servers can introduce challenges in the form of I/O bottlenecks. To eliminate these
obstacles, HP Virtual Connect enables up to four FlexNICs per physical NIC port.
Because only one HP Virtual Connect interconnect module is needed for four
FlexNICs, compared with the four switches that would have been previously required,
blade infrastructure costs and support burden are reduced. Customers can ensure
more efficient use of networking resources through the HP Virtual Connect capability
of throttling bandwidth at increments of up to 100MB, matching the application to the
appropriate amount of bandwidth.
With HP Virtual Connect, we avoid having a lot of switches, a lot of
cables, and a lot of additional gear. But it more or less pays for
itself within the first year of implementation. I'm avoiding a whole lot
of cabling and a whole lot of external switches to then switch back
into the chassis themselves. For a fully loaded chassis, I think we're
avoiding 2–3 switches that would cost about $500 each. — Vice
President, Sales and Operations, Opus Interactive
0 10 20 30 40 50 60
Storage
Software
Management tools
Power and cooling
Server hardware
Network hardware
Facilities
(% savings)
"I could only put in about 8 servers per rack because of power constraints. So I was consuming about 20 racks total. I was essentially going to have to double my physical footprint at my other datacenter. This was going to be very, very costly, increasing operational costs by another $260,000 per year. Two years ago, I switched to HP ProLiant BL490c blades. That was the technology that was going to allow me to build the plant with the horsepower necessary to ensure better performance." — Manager of Infrastructure, Healthcare Provider
8 #227508R1 ©2012 IDC
Blade Management Tools Drive IT Staff Productivity
Figure 3 examines how customers that migrated to a blade environment were able to
increase the efficiency of their IT staff. The wire-once, ready-to-deploy nature of blades
reduced the physical deployment by 75.1% and system setup and configuration by
46.1%. The ongoing operations of IT also become more efficient as problem
management was reduced by 52.3% and maintenance was reduced by 49.4%.
F I G U R E 3
I T S t a f f R e du c t i o n p e r T a s k
Source: IDC, 2011
Blade platforms, such as the HP BladeSystem c-Class, which utilizes HP Insight
Management software, help IT organizations reduce their overall server management
complexity and respond more efficiently to change. HP Insight Management is a suite
of management tools designed to enable simple and reliable provisioning, monitoring,
and control of the HP BladeSystem infrastructure. Because key management
processes are automated, less staff time is required. This ensures that IT resources
are focused on more value-added initiatives. Elements of HP Insight Software
include:
HP Systems Insight Manager (SIM) provides a single, integrated view of all
infrastructure resources and delivers core management services for discovery,
monitoring, and control.
HP Insight Control software provides comprehensive server health monitoring,
imaging, power management, remote management, and vulnerability
management.
0 10 20 30 40 50 60 70 80
Incident management
Network management
Change management
System setup and conf iguration
Maintenance
Problem management
Server deployment (physical)
(% improvement)
"The average full chassis that we've got pulls about 8–15 amps of power running full load. If I were to take those same 16 servers and put them in rack and stack, I'd need almost double the amount of power. I'd need close to 30-plus amps to power all of it. So I've got about half of the power consumption." — Vice President, Sales and Operations, Service Provider
©2012 IDC #227508R1 9
HP Matrix Operating Environment provides advanced management
capabilities, enabling physical and virtual resources to be managed in exactly the
same way and automated resource provisioning through a self-service portal.
Power and Cool ing
HP BladeSystem incorporates HP Thermal Logic technology to help HP customers
achieve greater power and cooling efficiencies in their IT environments. HP Thermal
Logic includes technologies from system to enclosure, enables server infrastructures
to pool and share power and cooling resources, and then utilizes management to
efficiently deliver those resources based on the performance level required.
The HP BladeSystem chassis utilizes Platinum Power supplies with 94% efficiency for
increased energy efficiency. Additionally, the HP Dynamic Power Saver mode
enables more efficient use of power in the server blade enclosure. During periods of
low server utilization, the HP Dynamic Power Saver places power supplies in standby
mode, incrementally activating them to deliver the required power as demand
increases. HP Power Regulator, built for ProLiant, dynamically changes each server's
power consumption to match the needed processing horsepower, thus reducing
power consumption automatically during periods of low utilization.
A datacenter is built with a specific maximum power capacity, and power and cooling
— not floor or rack space — is often the limiting factor in determining the compute
power in any given facility. Unfortunately, power in the datacenter is rarely efficiently
allocated, and the full power budget envelope is seldom used. HP Dynamic Power
Capping enables IT to allocate power to individual servers based on actual usage
versus faceplate estimates, thereby reclaiming unused energy in the datacenter.
Blades Reduce IT Risk and Increase Availability
Today, the availability of IT applications and services is critical to the business;
unplanned downtime of IT can lead to the interruption of business operations and
even loss of revenue. This ROI analysis demonstrates how blade environments can
reduce IT risk by lowering the number of server incidents as well as the time needed
to bring the system back online.
As Figure 4 illustrates, customers involved in this study reported that bladed
infrastructures, versus traditional environments, reduced server incidents per year by
over 36%. Virtualizing OS images on bladed infrastructures reduced the number of
incidents even more. Running virtualized OS images on blades reduced by over
76% the average number of annual server incidents experienced in a traditional
environment. It likewise reduced server downtime hours by over 84%. Overall migration
to HP BladeSystem generated benefits of over $13,000 per 100 users annually.
"We are in a high-availability configuration and, by far, more stable with the blades. With a traditional server, we used to schedule about 5 hours per year for complete blackouts. And now the blades have none. We do suffer unplanned downtime 3–4 times per year for traditional servers, but no unplanned [downtime] for the blades." — Director of IT, Excelled Sheepskin & Leather Coat Corp.
10 #227508R1 ©2012 IDC
F I G U R E 4
R i s k R e d u c t i o n o f K e y P e r f o r m an c e I n d i c a t o r s
Source: IDC, 2011
Blade Environments Deliver Improved ROI
IDC interviewed eight companies, referred by HP, that had implemented
HP BladeSystem to record their results. IDC used the following three-step method for
conducting the ROI analysis:
Gathered quantitative benefit information during the interviews using a
before-and-after assessment. In this study, the benefits included IT staff
productivity increase, user productivity increase, and IT cost reduction.
Created a complete investment (three-year total cost analysis) profile
based on the interviews. Investments go beyond just the solution's hardware
and software. IT departments spent staff time installing and configuring the new
solution, removing old equipment and/or software, and then maintaining the new
solution over three years. Ancillary costs directly related to the solution, such as
user input to planning, outsourced installation, configuration or maintenance
costs, and IT staff or user training, are also included in the analysis.
Calculated the ROI and payback period. IDC conducted a depreciated cash
flow analysis of the benefits and investments over a three-year period.
Because the full benefits of the solution are not available during the deployment
period, IDC prorates the benefits on a monthly basis and subtracts the appropriate
amount for the deployment time from the first-year savings.
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Server incidents per year
Hours needed to f ix the problem
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Server downtime hours per year
Downtime hours per user per year
Traditional
Blades
Blades with virtualization
©2012 IDC #227508R1 11
IDC uses a discounted cash flow methodology to calculate the ROI and payback
period. ROI is the ratio of the net present value (NPV) and discounted investment.
Payback period is the point at which cumulative benefits equal the initial investment.
IDC uses a standard 12% discount factor, which allows for risk and the missed
opportunity cost that could have been realized using that capital.
The three-year ROI analysis shows that on average, the companies in this study
spent $8,074 per 100 users deploying and maintaining HP BladeSystem and received
$28,326 per 100 users in benefits for an NPV of $20,252. The companies saw
payback in 10.2 months and achieved an ROI of 251% (see Table 3 and Figure 5).
T A B L E 3
T h r e e - Y ea r R O I A n a l y s i s p e r 1 0 0 U s e r s
Benefit $28,326
Investment $8,074
Net present value (NPV) $20,252
ROI = NPV/investment 251%
Payback 10.2 months
Discount factor 12%
Source: IDC, 2011
12 #227508R1 ©2012 IDC
F I G U R E 5
T h r e e - Y ea r P r o F o r m a B l a d e d I n f r a s t r u c t u r e I n v e s t m en t a n d R e t u r n s
Definitions and Notes:
All values are per year (12 months).
All values are per 100 connected users. We define connected users as the number of users actively linked to and
interacting on the infrastructure network.
Pro forma assumes that the initial cost of the solution occurs as lump sum outflow in year zero.
The Hardware Purchase category sums the acquisition expenditure on hardware (servers, storage, network, etc.).
The Implementation category sums the time for staff to learn and implement new technology.
The Software License/Maint. category sums the net reduction (increase) in fees for software licensing and provider's
maintenance and support.
The End-User Productivity category sums the reduction in user's lost productivity due to system/application outage and
unavailability.
The Network Equipment category sums the reduction in requirement for adding switches and cabling network equipment
given consolidation of server infrastructure.
The Storage category sums the reduction in requirement for adding storage capacity to handle demand given higher
utilization of storage capacity.
The Facilities Cost category sums the reduction in cost for power and cooling, datacenter space, etc.
The Hardware Upgrade category sums the reduction in requirement for adding server capacity to handle workload.
The Administer Datacenter category sums the reduction in IT staff time to manage and implement all aspects of datacenter
operations.
Source: IDC, 2011
©2012 IDC #227508R1 13
C H AL L E N G E S / O P P O R T U N I T I E S
While the study demonstrates the improved ROI, IDC acknowledges that blade
vendors still face some challenges. Identifying expenses may not always be as
straightforward in IT organizations as in other business units. Up-front costs, such as
the cost of hardware or software licenses, are tangible and relatively easy to see.
However, some abstract costs, such as hardware cabling costs, facilities charges,
and personnel hours needed to configure and manage the environment, are often not
accounted for with precision. A more sophisticated ROI analysis is required to
demonstrate the full benefits of and cost savings from blade environments.
A 2010 IDC study, IDC Blade Market Survey: The Dynamic Platform for the Future
Datacenter, shows how the potential obstacles to blade deployments have decreased
in recent years. The current generations of blade technologies have vastly improved
over the initial offerings of the early 2000s. Additionally, customers have a better
understanding of the technology, and the improved services from vendors have made
it easier to deploy blades into IT environments. However, the top-ranking obstacles
remain the perceived price premium over other server form factors and organizational
issues such as internal or management resistance to the platform.
This finding shows that HP and other blade vendors face a number of nontechnical
challenges as they seek to deliver blade-based solutions. IDC market data indicates
that blades represent 13.8% of the total worldwide server investment. To drive further
blade adoption, vendors will need to convey the message of how blades deliver a
better total cost of ownership than traditional environments.
C O N C L U S I O N
This IDC ROI analysis indicates that customers can achieve considerable cost savings and
improve the agility of their infrastructure by migrating to an HP BladeSystem environment.
The companies in this study were able to pay back their initial investment in less than a
year, a significant factor given the financial constraints most IT organizations are facing.
IDC believes that the datacenter of the future will require IT organizations to increase the
utilization of their hardware, simplify their management, and improve the energy efficiency
of servers. By leveraging HP BladeSystem and technologies such as HP Insight Control,
HP Virtual Connect, and HP Thermal Logic, customers will be able to reduce their
operating expenses and improve the flexibility of their IT environment. As a result, a
greater portion of IT budget and staff time can be allocated to new initiatives that drive
value back to the business.
C o p y r i g h t N o t i c e
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