Microsoft Windows Server Hyper-V in a Flash fileWindows Server Hyper-V virtualization environment...
Transcript of Microsoft Windows Server Hyper-V in a Flash fileWindows Server Hyper-V virtualization environment...
Microsoft Windows Server Hyper-V in a Flash
Combine Violin’s enterprise-class all-flash storage arrays with the ease and capabilities of Windows
Storage Server in an integrated solution to achieve higher density, performance, and efficiency for your
Windows Server Hyper-V workloads
January 2015
Abstract
Microsoft Windows Server Hyper-V scales to support large numbers of virtual servers in the data center. Yet legacy storage
solutions are keeping Hyper-V virtualization and associated workloads from reaching their full potential, which means expensive
server investments are underutilized. The ideal storage solution delivers enterprise-class high-performance storage that is tightly
integrated with the Windows environment and holistically managed by native Windows tools and utilities. This increases the value
of existing human and technology investments while transforming Hyper-V machine densities and virtualization economics. The
result is enhanced business efficiency, resiliency, and ROI for all of IT.
Violin Systems | 2560 N. First Street, Suite 300, San Jose, CA 95131 USA | Tel: 1-650-396-1500 • Fax: 1-650-396-1543 | www.violinsystems.com
White Paper: Microsoft Windows Server Hyper-V in a Flash
Pg. 2
©2019 Violin Systems. All rights reserved. These products and technologies are protected by U.S. and international copyright and intellectual property laws.
Violin Systems is a registered trademark of Violin Systems LLC. in the United States and/or other jurisdictions
Table of Contents
1. Introduction ................................................................................................................................... 3
2. Performance challenges in Windows Hyper-V environments ........................................................... 3
3. Higher performance storage for Windows Server Hyper-V .............................................................. 4
3.1. Violin Windows Flash Array + Windows Storage Server 2012 R2 ..................................................................................... 4
3.2. What is SMB Direct? ......................................................................................................................................................... 6
3.3. Resiliency for continuous availability ................................................................................................................................ 6
3.4. Performance that transforms business ............................................................................................................................ 6
3.5. Linear performance and capacity scalability through SOFS .............................................................................................. 7
3.5.1. Pay-as-you-grow scalability ...................................................................................................................................... 9
3.5.2. Efficient scalability for server and desktop virtualization ........................................................................................ 9
3.6. Choice in connectivity ....................................................................................................................................................... 9
3.7. Relevant data services when you need them ................................................................................................................. 10
4. Use cases ..................................................................................................................................... 10
4.1. Server virtualization ........................................................................................................................................................ 10
4.2. Desktop virtualization ..................................................................................................................................................... 11
4.3. Private cloud ................................................................................................................................................................... 11
5. Conclusion ................................................................................................................................... 11
Violin Systems | 2560 N. First Street, Suite 300, San Jose, CA 95131 USA | Tel: 1-650-396-1500 • Fax: 1-650-396-1543 | www.violinsystems.com
White Paper: Microsoft Windows Server Hyper-V in a Flash
Pg. 3
©2019 Violin Systems. All rights reserved. These products and technologies are protected by U.S. and international copyright and intellectual property laws.
Violin Systems is a registered trademark of Violin Systems LLC. in the United States and/or other jurisdictions
1. Introduction
Microsoft® technology has grown far beyond that of simple workgroup applications to become a mission-critical component of
enterprise IT. At the same time, organizations are focused on improving the financial and operational efficiency of their IT
investments. Server and application consolidation are a key part of IT’s future as the benefits are simply too great to ignore.
Many organizations have grown up around Windows® Server; it is an integral part of their business operations. As they respond
to the allure of consolidation and virtualization, Windows Server Hyper-V® is a logical choice given its technological maturity and
ease of deployment. Yet businesses expect that they will grow and that their legacy Windows Server applications and newer
Windows Server Hyper-V virtualization environment will grow with them.
To address the need for cost-effective growth, the scalability of Windows Server virtualization has increased dramatically.
Windows Server 2012 Hyper-V can support up to 320 logical processors with 1024 executing virtual machines (VMs) and a
maximum of 2048 virtual processors per server. At this degree of scale, Hyper-V is able to deliver large-scale data center
consolidation. However, virtualization initiatives to date have been constrained by the inefficiency and poor scaling of legacy
storage infrastructure that cannot handle the random I/O requests that virtualized servers generate.
The ideal solution would deliver enterprise-class storage with the I/O performance needed to maximize VM density on server
hosts while providing acceptable performance levels. In addition, it would be tightly integrated with the Windows environment
and managed by native Windows tools and utilities. Your organization would benefit from a rich suite of enterprise data services
that transform application and server performance as well as IT economics by improving the efficiency, resiliency, and ROI for all
of IT as part of the journey to the All Flash Data Center.
2. Performance challenges in Windows Hyper-V environments
Legacy storage solutions (disk drives) perform best when operations are sequential or large batch. Yet modern virtualized
workloads are filled with random I/O requests, and other workloads make use of tremendous numbers of small 4K files, such as
genomics research, both of which result in high latency and poor application performance. Various striping techniques, over
provisioning, solid-state drives, and optimization algorithms have been tried yet I/O performance remains lacking. This approach
is inefficient and enforces continued spending on capacity when the need is for lower latency and higher IOPS.
Poor storage performance leads to poor CPU utilization and low VM density. CPUs spend more time waiting than executing,
which means expensive servers are mostly idle investments. This has not escaped the attention of senior management. One way
to raise server utilization is virtualization. Yet ironically, virtualization drives random I/O even higher and some virtuali zation
solutions raise server overhead. When SANs are deployed, they typically require vendor-specific tools and skill sets.
Organizations cannot easily leverage the management skills of their existing Microsoft-savvy staff, which reduces flexibility and
increases operational expense. In addition, they are faced with an unpleasant reality that responding to growth has meant
scaling the inherent inefficiency and expense of legacy storage. Both CAPEX and OPEX are negatively affected by the status quo.
Ensuring continuous availability is a challenge, but essential. Replication is a traditional approach to this end but asynchronous
replication can suffer data loss if the primary array goes down. Synchronous mirroring is more resilient, but it is expensive and
has a slow two-phase commit process. In either case, close coordination of application and storage administrators is needed
during scheduled maintenance.
From these challenges, it is clear that a new approach is needed to deliver the performance, density, and scalability required so
your Hyper-V virtualization initiatives can achieve their full potential without breaking the IT budget.
Violin Systems | 2560 N. First Street, Suite 300, San Jose, CA 95131 USA | Tel: 1-650-396-1500 • Fax: 1-650-396-1543 | www.violinsystems.com
White Paper: Microsoft Windows Server Hyper-V in a Flash
Pg. 4
©2019 Violin Systems. All rights reserved. These products and technologies are protected by U.S. and international copyright and intellectual property laws.
Violin Systems is a registered trademark of Violin Systems LLC. in the United States and/or other jurisdictions
3. Higher performance storage for Windows Server Hyper-V
To address the shortcomings of legacy storage, Violin Memory and Microsoft have co-developed the Violin Windows Flash Array
(WFA). The WFA combines Violin Memory’s patented Flash Fabric Architecture™ (FFA), Microsoft’s fast SMB Direct protocol, and
Microsoft Windows Storage Server 2012 R2 to deliver storage that easily keeps up with your needs. With the WFA, you can start
the process of transforming your data center economics from legacy expense levels to that of the All Flash Data Center.
3.1. Violin Windows Flash Array + Windows Storage Server 2012 R2
The WFA is based upon the Violin All Flash Array 6000. Dual blades run Windows Storage Server 2012 R2 with support for SMB
Direct through RDMA-enabled network cards. The WFA architecture features sub-millisecond latency (as illustrated in Fig. 3-1 on
page 4) and wide stripe vRAID accelerated switched flash for maximum performance. With SMB Direct, the WFA delivers the
features of SAN, the performance of DAS, at the price of NAS. You get maximum performance for every byte every time.
Windows Storage Sever 2012 R2 delivers a suite of enterprise data services software including deduplication, live migration, thin
provisioning, compression, replication, Scale-out File Server (SOFS), and data encryption. The SMB 3.0 protocol boosts network
storage performance. In particular, SMB Direct (SMB 3.0 over RDMA) enables remotely stored data on the WFA to be read
directly into application servers’ memory. The result is remote storage performing like blazing fast local storage. In fact,
Microsoft and Violin collaborated extensively to optimize Windows Storage Server 2012 R2 at the kernel level to take full
advantage of our FFA to delivery enterprise-class performance for the Violin Flash Array.
Table 3-1: Violin Windows Flash Arrays by model
Windows Storage Sever 2012 R2 delivers enterprise data services including deduplication, live migration, thin provisioning,
compression, replication, Scale-out File Server (SOFS), and data encryption. The SMB 3.0 protocol boosts network storage
performance. In particular, SMB Direct (SMB 3.0 over RDMA) enables remotely stored data on the WFA to be read directly into
application servers’ memory. The result is remote storage performing like blazing fast local storage. In fact, Microsoft and Violin
collaborated extensively to optimize Windows Storage Server 2012 R2 at the kernel level to take advantage of our FFA to deliver
enterprise-class performance for the WFA. As a result, you can achieve significantly faster VM (VHDx) access, so you can
optimize Hyper-V density and smooth out or eliminate performance chokepoints.
Windows Flash Array Model WFA-64 WFA-48 WFA-32 WFA-24 WFA-16
Form Factor / Flash Type 3U / MLC 3U / MLC 3U / MLC 3U / MLC 3U / MLC
Raw Capacity (TB) 70 52 35 26 17.5
Usable Capacity (TB) at 84% format level
44 33 22 16 11
I/O Connectivity 10GbE, 56Gb IB 10GbE, 56Gb IB 10GbE, 56Gb IB 10GbE, 56Gb IB 10GbE, 56Gb IB
Max. 4KB IOPS 1.1M IOPS 1.1M IOPS 800k IOPS 800k IOPS 800k IOPS
Max. Bandwidth 4GB/s 4GB/s 4GB/s 4GB/s 4GB/s
Nominal Latency <500 µsec <500 µsec <500 µsec <500 µsec <500 µsec
Violin Systems | 2560 N. First Street, Suite 300, San Jose, CA 95131 USA | Tel: 1-650-396-1500 • Fax: 1-650-396-1543 | www.violinsystems.com
White Paper: Microsoft Windows Server Hyper-V in a Flash
Pg. 5
©2019 Violin Systems. All rights reserved. These products and technologies are protected by U.S. and international copyright and intellectual property laws.
Violin Systems is a registered trademark of Violin Systems LLC. in the United States and/or other jurisdictions
Figure 3-1: WFA-64 4K Random Read Latency over Increasing Queue Depth
Virtualization enables enterprise application consolidation, so ensuring continuous availability is key. The WFA helps you meet
24x7 operational requirements for your Tier-1 Hyper- V virtualized applications through multi-layered hardware and software
resiliency. Active-Active clustering delivers continuous availability and SMB Multichannel ensures that cluster node connectivity
is maintained. With the WFA, you can get higher utilization and performance with a smaller, less expensive IT footprint and you
can scale as business conditions warrant. You may find that you no longer need a dedicated SAN or DAS to support your mix of
virtualized high performance Windows applications. In addition, Hyper-V’s low virtualization overhead means that more of your
CPUs effort goes for actual work.
Violin Memory and Microsoft co-developed the WFA to easily integrate into existing Windows-based environments. SMB 3.0 and
SMB Direct are part of the Microsoft strategic roadmap for network storage and the WFA fully supports these protocols to
deliver performance and scalability not available elsewhere. There is no need for third-party storage management tools or skill
sets. Your existing Microsoft admin staff can manage all of your servers, applications, and now WFA storage with Microsoft
System Center and PowerShell. This tight integration delivers a holistic view of your Microsoft environment for simplified and
cost-effective management of physical and virtual server workloads.
Violin Systems | 2560 N. First Street, Suite 300, San Jose, CA 95131 USA | Tel: 1-650-396-1500 • Fax: 1-650-396-1543 | www.violinsystems.com
White Paper: Microsoft Windows Server Hyper-V in a Flash
Pg. 6
©2019 Violin Systems. All rights reserved. These products and technologies are protected by U.S. and international copyright and intellectual property laws.
Violin Systems is a registered trademark of Violin Systems LLC. in the United States and/or other jurisdictions
3.2. What is SMB Direct?
Figure 3-2: Wait State Reduction
The WFA addresses the traditional bottlenecks that limit performance by delivering a state-of-the-art storage solution where
speed, scale, and resiliency combine to deliver operational and financial efficiency. The use of SMB Direct can improve the
performance of most any vendors’ storage and we expect that over time most will offer this support. However, the combination
of SMB Direct with the Violin FFA and kernel-level optimization of Windows Storage Server 2012 R2 uniquely takes performance
to the next level. With the WFA, you get ultra-fast read and write access with sustained throughput of up to 1.1 million 4K IOPS
with greater than 4 GB/s of bandwidth. SMB Direct recoups up to 30% of your SQL Server’s CPU utilization, which provides you
with more flexibility in how you allocate server resources and can have a dramatic effect on your CAPEX and OPEX requirements.
As illustrated in Figure 3-2, your servers will spend more time doing than waiting so you can support additional workloads with
existing resources and achieve faster response times. Our support for SMB 3.0 along with a suite of enterprise data services
delivers a high-performance feature-rich Tier-1 NAS solution that will help ensure you can deliver business in a flash.
3.3. Resiliency for continuous availability
With the WFA, you benefit from continuous availability of your critical applications and file shares. Windows Failover Clustering
in conjunction with the WFA hardware can sustain any single point of failure to ensure continuous availability. SMB Multichannel
I/O provides bandwidth trunking as well as enhanced node-to-node network connectivity and availability. Should you desire a
high availability configuration, deployment is option-rich and as simple as software configuration. In addition, in-flight and at-rest
encryption guards against eavesdropping or other unauthorized data disclosure.
3.4. Performance that transforms business
The WFA is particularly suited for workloads that have a high degree of random I/O activity, sequential I/O, or any mix of the
two. By raising the available I/O while lowering latency to meet processor demand, the WFA enables application servers to
Violin Systems | 2560 N. First Street, Suite 300, San Jose, CA 95131 USA | Tel: 1-650-396-1500 • Fax: 1-650-396-1543 | www.violinsystems.com
White Paper: Microsoft Windows Server Hyper-V in a Flash
Pg. 7
©2019 Violin Systems. All rights reserved. These products and technologies are protected by U.S. and international copyright and intellectual property laws.
Violin Systems is a registered trademark of Violin Systems LLC. in the United States and/or other jurisdictions
spend more time processing data as opposed to waiting for it. The combination of SMB Direct with flash-based storage achieves
significantly faster VM (VHDx) access, which can reduce CPU wait times for storage I/O and decrease CPU load by up to 30%.
Moreover, you can run multiple mixed workloads with consistent performance. Since our unique architecture ensures consistent
performance with linear scalability, you can run multiple mixed workloads without concern about “noisy neighbors.” In addition,
you may find that you can support the same number of workloads with need fewer CPUs so can optimize CPU investments
across workloads to meet your objectives; thus, the WFA can enable you to increase virtualization density to new heights.
Unlike legacy solutions, there is no wasted capacity due to drive striping to improve performance. Our arrays do not suffer from
write-cliff due to the non-blocking nature of our distributed garbage collection; the WFA can enable you to increase your
virtualization density while supporting multiple mixed workloads and achieve significantly faster VM (VHDx) access. Unlike other
flash-based solutions, the WFA does not suffer from write cliff due to the non-blocking nature of our distributed garbage
collection. Our FFA delivers maximum performance for every byte every time regardless of block-size or the random/sequential
nature of access.
With the WFA, you benefit from full support for the SMB 3.0 feature set operating on a low-latency, all-flash SMB Direct solution
featuring integrated RDMA-enabled network cards. Tight integration with Windows Storage Server 2012 R2 ensures support for
large sector (4K) storage as well as other performance optimizations collaboratively developed between Microsoft and Violin.
You can improve VM density and performance today while aligning with Microsoft’s storage technology roadmap.
3.5. Linear performance and capacity scalability through SOFS
Figure 3-3: WFA-64 4K Random Read and Write Performance, 512K Sequential Read and Write Performance
With faster storage performance, you can optimize CPU investments more effectively across workloads without concern about
the performance profile of the storage. All of the results shown were measured against virtualized workloads running under
Hyper-V.
Violin Systems | 2560 N. First Street, Suite 300, San Jose, CA 95131 USA | Tel: 1-650-396-1500 • Fax: 1-650-396-1543 | www.violinsystems.com
White Paper: Microsoft Windows Server Hyper-V in a Flash
Pg. 8
©2019 Violin Systems. All rights reserved. These products and technologies are protected by U.S. and international copyright and intellectual property laws.
Violin Systems is a registered trademark of Violin Systems LLC. in the United States and/or other jurisdictions
As illustrated in Figure 3-3, our reference architecture for SOFS delivers the predictable high performance that enables you to
maintain service consistency even as the character of your virtualized workloads changes.
The 4K random read performance achieved by our scale-out reference architecture reveals that the WFA delivers over 1 million
IOPS and 4 GB/s of bandwidth at queue depth of 64 in a single array. The corresponding 4K random write performance is over
810k IOPS with 3 GB/s of bandwidth at queue depth of 64 in a single array. As you can see, the WFA is well suited for the short
block random read/write workloads associated with OLTP, which is a critical application for most any enterprise, as well as other
random access workloads such as virtualized server and desktop environments.
Figure 3-3 (on page 6) also shows the WFA’s ability to sustain high bandwidth in the sequential access modes common in data
warehouse, business intelligence, decision support systems or other large block-sized access workloads. With the WFA, you can
achieve in excess of 4 GB/s sustained bandwidth for 512K sequential reads in a single array. Corresponding 512K sequential write
performance of over 810k IOPS and 3 GB/s of bandwidth at queue depth of one can be achieved in a single array.
The WFA allows you to scale out to meet growing demand by adding a second, third or fourth WFA to the cluster. With SOFS,
performance and capacity scales linearly. In addition, you can take advantage of a single name space to simplify the
administration of your shares across multiple WFAs and present a unified view of storage resources.
The mix of applications common in today’s data center means that workloads are rarely overwhelmingly read- or write-centric.
Rather access is a mixture of read and writes, and of various block-sizes. While this can jeopardize the performance of legacy
solutions, it is just one more example of where the unique architecture of the WFA delivers and legacy solution cannot.
Figure 3-4: WFA-64 8K OLTP Random R/W Performance, 32K Exchange Server Random and Sequential R/W Performance
Figure 3-4 illustrates two different mixed workloads, an 8K OLTP random access with 90% reads and 10% writes; and a 32K
Exchange Server with 80% random and 20% sequential access with 60% reads and 40% writes. The performance achieved shows
Violin Systems | 2560 N. First Street, Suite 300, San Jose, CA 95131 USA | Tel: 1-650-396-1500 • Fax: 1-650-396-1543 | www.violinsystems.com
White Paper: Microsoft Windows Server Hyper-V in a Flash
Pg. 9
©2019 Violin Systems. All rights reserved. These products and technologies are protected by U.S. and international copyright and intellectual property laws.
Violin Systems is a registered trademark of Violin Systems LLC. in the United States and/or other jurisdictions
the WFA delivering over 550k IOPS and 4.4 GB/s of bandwidth at queue depth of 64 in a single array for the 8K workload. The
corresponding 32K mixed workload performance is 130k IOPS with 4.16 GB/s of bandwidth at queue depth of 64 in one array.
As with the other workloads, when a second WFA is added to the cluster, the performance doubles, that is, it scales linearly. As
shown here, the WFA is not only well suited for random or sequential read/write workloads, it also excels with mixed workloads.
Therefore, regardless of the specific workload or combination thereof in your data center, the WFA can deliver the low latency
and high performance necessary to run your business in a flash.
3.5.1. Pay-as-you-grow scalability
Having the resources and flexibility to support growth is essential for a successful enterprise; however, the timing of this
investment expense is equally important. With WFA’s pay-as-you-grow pricing, you can non-disruptively scale capacity without
installing new capacity in advance. This enables you to more closely align CAPEX with the benefit received. As a result, you can
non-disruptively scale your WFA raw capacity in 8.8 TB increments within one of two ranges, 17.5-35 TB or 52-70 TB, based upon
your timing. You can scale capacity without full expenditure at the onset, but maintain the operational flexibility to license-up
the capacity to support growth.
3.5.2. Efficient scalability for server and desktop virtualization
The WFA’s enterprise data services support your virtualized workloads while ensuring maximum utilization of your storage
investment. Our data efficiency services include thin provisioning, compression, and deduplication so that you can achieve the
highest virtual machine (VM) density on your application servers with lowest storage capacity possible. Depending upon your
workloads, our data reduction capability can reduce your required storage by up 10x. You can choose when these efficient
services run on a granular basis as well as which nodes within your WFA cluster perform these tasks.
With Windows Server Hyper-V as your hypervisor layer, you can consolidate workloads with little, if any, performance penalty. As your workloads change, Live Migration streamlines VM migration through direct WFA to WFA communication that bypasses the VM host to complete the process more rapidly. What’s more, the WFA is a very efficient private cloud platform. As you consider the role private clouds may play in your IT infrastructure, be assured that the WFA is a future-proof investment. Should Microsoft Azure™ be part of your data center strategy, you have the flexibility to move files between the WFA and Azure™ Data Services through backup or custom developed applications to maximize flexibility in your choice of onsite and offsite cloud storage, Microsoft Azure Virtual Machines, and other Azure offerings.
3.6. Choice in connectivity
With the WFA, you have choice in connecting your All Flash Array to your existing IT infrastructure. The WFA supports both
10 Gb Ethernet and 56 Gb FDR InfiniBand. In either case, you benefit from the efficiency and high performance afforded by SMB
Direct and the rest of the SMB 3.0 feature set. Although SMB 3.0 is the standard networking protocol on Windows Server, the
NFS protocol is favored by other operating systems that are common in the enterprise data center. As part of its data center
focus, the WFA fully supports NFS 3.0 and NFS 4.1 to simplify data sharing within your enterprise. You can achieve blazing fast
NFS performance for interconnection with application servers running operating systems such as Linux and UNIX, amongst
others. In addition, your WFA-based file shares are simultaneously available through either protocol, either as Windows file
shares over SMB 3 or as NFS exports. There are no artificial data silos separating SMB- and NFS-based applications with the WFA,
just seamless integration of high performance, easily accessible all-flash storage.
Violin Systems | 2560 N. First Street, Suite 300, San Jose, CA 95131 USA | Tel: 1-650-396-1500 • Fax: 1-650-396-1543 | www.violinsystems.com
White Paper: Microsoft Windows Server Hyper-V in a Flash
Pg. 10
©2019 Violin Systems. All rights reserved. These products and technologies are protected by U.S. and international copyright and intellectual property laws.
Violin Systems is a registered trademark of Violin Systems LLC. in the United States and/or other jurisdictions
3.7. Relevant data services when you need them
Table 3-2 highlights some of the many data services offered by the WFA to increase the efficiency of your data center.
Table 3-2: Enterprise Data Services Provided by the Windows Flash Array
Storage and File System File and Block Access Networking
Data Deduplication Compression NTFS Availability Offloaded Data Transfer (ODX) Thin Provisioning Encryption
SMB 3.0 NFS 3.0 and NFS 4.1 Support for VMware VMs over NFS Scale-out File Server (SOFS) VSS for Remote SMB File Shares (snaps)
SMB Direct (RDMA) SMB Multichannel Encryption Transparent Failover
Clustering Virtualisation Management
Cluster Shared Volumes v2 DFS Replication
Live Storage Migration New VHDX standard
Microsoft System Center PowerShell
Unlike many competitive offerings, the WFA lets you choose which of the data services to deploy, and on which of the WFA
nodes. For example, this granularity means that you can enable deduplication only on the shares that would benefit, such as
those supporting virtual desktops. Thin provisioning in conjunction enables you to adjust allocations to match your actual
storage needs. Since the WFA operates as a Windows Cluster Failover, you are protected against an array controller failure as
the active-active configuration ensures data accessibility. In addition, SMB Multipathing not only aggregates bandwidth for
higher performance but can also detect connectivity failures and reroute traffic accordingly. Live migration of VMs delivers
flexibility in resource allocation without requiring taking applications or databases offline. Logical organization of multip le large
databases is streamlined through SOFS, which can deliver a single namespace across multiple WFAs thus simplifying the
management of large amounts of data.
4. Use cases
Virtualization/consolidation is the future of IT; yet, many initiatives have been constrained by the inefficiency, and poor scaling
inherent in legacy solutions. While the Violin Windows Flash Array delivers superior performance for most any enterprise
workload, the WFA is particularly suited for virtualized workloads, private cloud environments, or any other applications that
require consistent low latency, sustained high throughput, or a high degree of random I/O activity.
4.1. Server virtualization
The WFA enables your virtualization initiatives to reach their full potential. As seen in Figure 4-1, the WFA delivers up to 40% or
higher write performance under Hyper-V compared with an industry standard all-flash array. As a result, you can achieve
significantly faster VM access, increase VM density, and smooth out or eliminate performance chokepoints. In addition,
Hyper-V’s low overhead means that more of your CPU’s effort goes for workload execution as opposed to virtualization.
As your workloads change, Live Migration streamlines VM migration through direct WFA to WFA communication that bypasses
the VM host to complete the process more rapidly. You can deploy development, test, and Q/A scenarios knowing that roll out
and roll up will be quick and simple, and the test beds will match the architecture of your production environment.
Violin Systems | 2560 N. First Street, Suite 300, San Jose, CA 95131 USA | Tel: 1-650-396-1500 • Fax: 1-650-396-1543 | www.violinsystems.com
White Paper: Microsoft Windows Server Hyper-V in a Flash
Pg. 11
©2019 Violin Systems. All rights reserved. These products and technologies are protected by U.S. and international copyright and intellectual property laws.
Violin Systems is a registered trademark of Violin Systems LLC. in the United States and/or other jurisdictions
4.2. Desktop virtualization
Virtual desktops generate lots of random I/O, which can grind traditional storage
systems to a crawl, especially at boot time. The unique optimization of Windows
Storage Server 2012 R2 and the WFA architecture means you can consolidate more
desktops per server CPU core while maintaining enterprise-class performance. The
WFA delivers faster boot times, enhanced performance, and a reduction in CPU
overhead of up to 30%. Consequently, the WFA can support up to 5,000 persistent
desktops with 300 IOPS each at a cost of approximately $60 per desktop at
expected street prices.
4.3. Private cloud
Taking the next step from virtualization to private cloud requires centralized
management and seemingly unlimited scalability with consistent performance. The
tight integration of Windows Server Hyper-V and Violin hardware delivers the
maximum scalability that you need for private cloud deployments. Multi-tenant or
virtualized environments with multiple mixed workloads need not be concerned
about “noisy neighbors” as the WFA does not develop workload hotspots. The WFA
delivers a flexible single namespace for easier share management and simultaneous SMB and NFS file share access for maximum
flexibility. Should Microsoft Azure™ be part of your data center strategy, you can easily move files between the WFA and Azure
Data Services through backup, replication, or custom developed applications to maximize flexibility in your choice of onsite and
offsite cloud storage. You can manage your private cloud and Azure delivered resources through a single management
framework.
With management based on System Center and PowerShell, existing staff can administer storage resources, which reduces the
need for additional skill sets and training. SOFS lets you can scale out to four arrays (eight nodes) to meet your private cloud
requirements. SMB Multichannel aggregates network connectivity within the safety of a Windows Failover Cluster so you will
have the performance and resiliency to ensure that your private cloud remains available whenever it is needed.
5. Conclusion
Legacy storage solutions are built for capacity, not I/O performance. Yet today’s business applications are performance oriented
and increasingly virtualized, which results in complex, expensive, and hard-to-scale solutions being deployed to support these
applications and related files. The Violin Windows Flash Array is a fundamentally different and better NAS solution that
addresses the performance shortcomings of legacy storage in supporting virtual server and desktop environments. WFA is an all -
flash active-active HA multi-node cluster platform with native Windows Storage Server 2012 R2 that delivers a rich suite of
enterprise data services for Tier-1 Hyper-V virtualized applications by putting Windows intelligence in the storage array.
The expense of a legacy data center based upon magnetic storage will become, if it has not already, a competitive disadvantage
for any enterprise. The superior economics of the All Flash Data Center will cause executive staff to take note. Even if your
executives do not embrace the All Flash Data Center for performance and agility reasons, the financial benefits are too great to
pass up. It’s simply a matter of time. The WFA is an enterprise-class storage solution that is at home in the All Flash Data Center.
You can unleash your application performance and free up existing resources to do more. In fact, the WFA’s performance is so
high that you could eliminate your existing dedicated storage that is supporting your Windows Server Hyper-V workloads. The
Figure 4-1: Hyper-V Performance, WFA
vs. Industry Standard All Flash Array
Violin Systems | 2560 N. First Street, Suite 300, San Jose, CA 95131 USA | Tel: 1-650-396-1500 • Fax: 1-650-396-1543 | www.violinsystems.com
White Paper: Microsoft Windows Server Hyper-V in a Flash
Pg. 12
©2019 Violin Systems. All rights reserved. These products and technologies are protected by U.S. and international copyright and intellectual property laws.
Violin Systems is a registered trademark of Violin Systems LLC. in the United States and/or other jurisdictions
WFA can help reduce CAPEX both in the short and long term. You can recoup existing server and facilities investments while
delaying future expenditures, which will free up resources to invest in innovation and growing your business success.
With the WFA, you can simplify your management paradigm with Microsoft System Center and PowerShell to achieve holistic
control and flexibility of your Windows-based physical and virtual infrastructure. You can consolidate and virtualize a mix of
workloads while maximizing your virtualization ROI through increased Hyper-V VM density and application performance on a
storage architecture that is simpler and faster, and on Microsoft’s strategic roadmap at substantial cost savings.
If you would like to learn more about how the Violin Windows Flash Array can dramatically improve your Windows Server Hyper-
V virtualization density while increasing your mission critical application performance, please contact your Violin Memory
representative today.
About Violin Memory
Business in a Flash. Violin Memory transforms the speed of business with high performance, always available, low cost
management of critical business information and applications. Violin’s All Flash optimized solutions accelerate breakthrough
CAPEX and OPEX savings for building the next generation data center. Violin’s Flash Fabric Architecture (FFA) speeds data
delivery with chip-to-chassis performance optimization that achieves lower consistent latency and cost per transaction for
Cloud, Enterprise and Virtualized mission-critical applications. Violin's All Flash Arrays and Appliances, and enterprise data
management software solutions enhance agility and mobility while revolutionizing data center economics. Founded in 2005,
Violin Memory is headquartered in Santa Clara, California.
For more information, visit www.violin-memory.com. Follow us on Twitter at twitter.com/violinmemory