computerworld TechnologY BriefingS STORAGE A Great Leap Forward in Storage for the SMB Table of Contents Sponsored by A Great Leap Forward in Storage for the SMB. . . . . . . . . . . . . . 2 Q&A with Greg White on Unified Storage Benefits. . . . . . . . . . 6 Dynamic Duo of Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 iSCSI Growth on the Rise in Small and Big Shops . . . . . . . . . 10 TM THIS WHITE PAPER IS FOR INFORMATIONAL PURPOSES ONLY, AND MAY CONTAIN TYPOGRAPHICAL ERRORS AND TECHNICAL INACCURACIES. THE CONTENT IS PROVIDED AS IS, WITHOUT EXPRESS OR IMPLIED WARRANTIES OF ANY KIND. Dell and PowerEdge are trademarks of Dell Inc. Intel and Xeon are registered trademarks of Intel Corp. Red Hat is a registered trademark of Red Hat Inc. Linux is a registered trademark of Linus Torvalds. Microsoft and Windows are registered trademarks of Microsoft Corporation. Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell disclaims proprietary interest in the marks and names of others. © Copyright 2007 Dell Inc. All rights reserved. Reproduction in any manner whatsoever without the express written permission of Dell Inc. is strictly forbidden. For more information, contact Dell. Information in this document is subject to change without notice. STRATEGIC TECHNOLOGY insights from computerworld Custom Publishing SMB STORAGE A Great Leap Forward in Storage for the SMB Unified network storage cuts complexity and costs while adding business value BY BRUCE HOARD F inally, small and midsize businesses can have storage the way they really want it—and need it. By consolidating file- and blocklevel storage in one affordable, costefficient system, unified network storage is dramatically improving SMB IT environments by decreasing storage complexity, reducing support costs, and providing enterprise-level applications. This represents a quantum leap for SMBs, which are currently dealing with uncontained data growth. Traditionally, SMBs have been forced to choose between inefficient homegrown applications, prohibitively expensive Fibre Channel SANs, and scaled-down imitations of higher-end vendor products. Moving to unified network storage is not a difficult technical challenge for SMBs, as most of them already employ block-based iSCSI links and file-based network-attached storage (NAS) connectivity in their IT infrastructures. Implementation is simplified, because the new generation of unified network storage systems include wizards that automatically accomplish many start-up tasks. Migration is further enhanced because most of these new storage networks rely on Windows-based technology, which is familiar to the overwhelming majority of systems administrators. As a result, they can deploy and maintain unified storage without having to undergo any additional training. It’s like onestop shopping. Despite its manifest advantages, unified network storage is not a panacea—there are some specialized cases where consolidation is not the best approach. However, across a broad range of small and midsize customers, it represents a giant leap forward from the outdated trappings of their past to the competitive advantages of their future. Seeking Simplification Optimized for performance and interoperability, unified network storage merges iSCSI and NAS technologies to deliver both file data and blocks of application data in a wide range of operating environments. Depending on the specific product, unified storage systems may offer a suite of software that includes capabilities typically found in higher-end SANs, such as point-in-time snapshots, remote replication, storage resource management, and multinode clustering. Support is also available for standard NFS and CIFS protocols that enable file and iSCSI block access. These capabilities are warmly received by IT organizations of all sizes, which have struggled for years with storage complexity. However, it is the SMBs with limited IT resources that stand to gain the most by deploying these breakthrough systems. Complexity is at the root of a lot of TECHNOLOGY BRIEFING • A Great Leap Forward in Storage for the SMB • JUNE 2007 SMB pain today, according to Greg Schulz, founder and senior analyst at StorageIO Group, a market research and consulting firm based in Stillwater, Minn. “The pain comes from the complexity to install, integrate, acquire, and maintain the equipment. Everything needs to be simpler and easier to use,” says Schulz. Direct-attached storage—which is connected directly to servers—has a long history of successful implementations, but can lead to isolated islands of storage that are difficult to manage and integrate with enterprise systems. As a result, many SMBs are seeking other options, such as unified network storage. Despite its downside, however, DAS persevered in SMB domains because it offered a simple, affordable alternative to high-end Fibre Channel SANs, many of which foundered on the rocky shoals of multivendor incompatibility. There was simply no way that underfunded, understaffed SMB IT departments could muster the personnel and financial resources required to implement such expensive—and risky—storage networks. Ultimately, the advent of new technology, combined with the growing importance of data protection and disaster recovery, diminished the role of DAS as a frontline force in many storage environments. This development opened the door to systems based on either the iSCSI or NAS protocols, which fueled the proliferation of incompatible products and exacerbated the already unwieldy world of server sprawl. As a result, the stage was set for unified technologies. SMBs Fit the Product Profile Claude Lorenson, group product manager in Microsoft’s storage division, points out that because most SMBs already run both file and block storage applications, they are ideal candidates for unified network storage. Microsoft® Exchange Server, SQL The pain comes from the complexity to install, integrate, acquire, and maintain the equipment. Everything needs to be simpler and easier to use. greg schulz founder, senior analyst, storageIO group Server™ databases, and line-of-business applications, he notes, commonly use block storage, while nearly every company uses NAS for file serving and sharing, as well as supporting video streams between users. “The question is, is there enough capacity growth pain to unify and combine storage in a simple network so I can manage and add capacity?” Lorenson asks. He notes that every time DAS capacity is added, the application on that server has to be turned off, the additional capacity has to be provisioned, and then the application has to be rebooted. This is not the case with networked storage, which is seamlessly added without interruptions and downtime. Further, he says, in unified network storage environments, security is enhanced because data is consolidated in a single management environment, as opposed to being distributed across multiple servers. Selection.com Jeff Glenn is CIO of Selection.com, a Web-based company in Cincinnati that performs background checks for various companies all over the United States. The company is largely a Microsoft shop with 40 Dell servers. According to Glenn, Selection.com recently purchased a Dell™ PowerVault™ NX1950 unified network storage system that includes Microsoft® Windows Unified Data Storage Server, which supports both iSCSI and NAS technologies. He intends to use it to run iSCSI drives for virtual servers, file sharing via DFS, and primary backup storage. Although Selection.com had an unused EMC CX300 on hand when Glenn joined the company, he regarded it as “overkill.” He notes: “We were familiar with Microsoft technologies, and we saw this as an opportunity to jump over into the iSCSI camp and simplify our world by just using the Microsoft tools and technologies we already know. The real compelling thing for us was the iSCSI interface and the ability to run virtualized servers and machines from a central location.” Selection.com was still in the early stages of implementing its PowerVault NX1950 in mid-May—it had only had the product for a week at the time—but Glenn was pleased with its installation wizards, which he said were doing all the “heavy lifting” so far. As evidence of that, he says no calls had yet been placed to Dell product support. Asked how he expects to cost-justify TECHNOLOGY BRIEFING • A Great Leap Forward in Storage for the SMB • JUNE 2007 the PowerVault NX1950, he starts by noting the value of working in familiar Microsoft environments, as opposed to having to learn the intricacies of his unwanted EMC CX300 SAN. Those intricacies include Fibre Channel ports, host bus adapters (HBAs), and blade server compatibility. Making matters worse, in order to optimize the SAN to meet his needs, Glenn says he would have to first purchase 10 additional HBAs at $500 each, for a total of $5,000. “In terms of the ongoing outlay, that amount pretty well justifies the PowerVault NX1950 right there,” he comments. “The cost for us to buy two of the PowerVault NX1950s is half the cost of buying just one additional CX300, and from a logistical point of view, it also made more sense.” Ultimately, Glenn expects to realize “dramatic” cost savings and simplify Selection.com’s IT infrastructure with his new system. Cost Justification The issues of decreased TCO and truncated ROIs are central to any discussion of unified network storage, and tend to revolve around topics relating to consolidation and ease of use. Praveen Asthana, director of marketing, storage, and networking at Dell, frames the discussion in terms of justifying new storage technology at a time when IT budgets are flat. He notes that although money is tight, data growth continues, even if it is just from email. “At Dell,” he says, “our whole customer-facing strategy is based on the concept of changing the economics of storage. That phrase gets a very warm reception from our customers because the ones I talk to say their data needs At Dell, our whole customer-facing strategy is based on the concept of changing the economics of storage. Praveen Asthana director of marketing, storage, and networking, DELL are growing, but their budgets aren’t, and they want to know how they can solve that equation.” He responds by pointing them toward a unified network storage strategy in the form of the PowerVault NX1950, which he says delivers an economical combination of iSCSI, block-based networking, and filebased NAS capabilities. Microsoft’s Lorenson emphasizes the value of consolidation, saying for every dollar spent on acquiring storage capacity, five to seven dollars are spent managing that capacity. So, when the number of devices is reduced and capacity is shared among different types of applications, management costs are reduced. “It’s really a consolidation issue, and in the case of unified storage running on Windows, the administrator only has to be familiar with Windows, and most of these people have Windows servers and are familiar with Windows server management,” he says. “We try to reproduce that look and feel in the storage product.” Despite the many benefits of unified storage, there are limited trade-offs. For example, when two single-purpose devices such as printers and copiers are combined, some of the speed offered by the individual printer or copier may be sacrificed. The same is true with unified storage, which is based on mature technologies that existed for many years in standalone environments. However, with the exception of rare cases, the combined unit is vastly superior to the single-purpose approach. SMBs Snubbed by Vendors The number of vendors selling unified network storage systems is not large to begin with, so it is relatively easy to for users to closely scrutinize the major players. After doing so, they may be disappointed with their findings. Typically, when it comes to the SMB market, storage vendors have a tendency to offer limited, less functional versions of their more expensive products. According to Asthana, this practice is employed because the vendors want to avoid cannibalizing those more expensive products. “This approach misses the mark,” says Asthana, “because when we talk to SMB customers—and one of the strengths of Dell is we talk directly to SMB customers as opposed to going through a reseller channel—we learn that many of their storage growth needs are like those that large companies had five years ago. So they have complex storage growth needs, and they need more sophisticated storage, not limited storage.” He goes on to note that when storage is consolidated under one management umbrella, it is necessary to scale it to meet workload demands, application types, and the number of users with access. This is another area where limited products fall down. Steve Norall, a senior analyst at the TECHNOLOGY BRIEFING • A Great Leap Forward in Storage for the SMB • JUNE 2007 Taneja Group, in Hopkinton, Mass., agrees with Asthana’s assessment, noting that many major vendors have made a mistake by dumbing down their products for SMBs. “What you’re starting to see is people are realizing that that approach is flawed, and you actually have to have a true product that delivers many of the features you expect in an enterprise,” he observes. The Answer: Unified Network Storage Long-suffering SMBs are anxious to move beyond their antiquated and complex legacy storage systems, which are frequently based on isolated strands of DAS and other homegrown solutions. However, many of them lack the internal financial and human resources to implement expensive, high-end Fibre Channel SANs, which have become notorious for their inability to interoperate within heterogeneous environments. Unified network storage is the answer for these underserved SMBs. It is inexpensive to buy, easy to implement, simple to maintain, and combines iSCSI and NAS capabilities in a single box. That means that at a time when IT budgets are flat, it is still possible to afford enterprise-level functionality that is cost-justified based on its ability to consolidate servers and centralize management functions. The Dell PowerVault NX1950 is an ideal example of unified network storage designed with SMBs in mind. In addition to offering enterpriselevel capabilities such as point-intime snapshots and remote replication, it optimizes storage capacity, relies on time-tested Microsoft server technology, and leaves plenty of room for scalability. w Bruce Hoard is a freelance writer based in Bangor, Maine. TECHNOLOGY BRIEFING • A Great Leap Forward in Storage for the SMB • JUNE 2007 Q&A with Greg White Dell SMB Manager Cites Unified Storage Benefits Consolidation, enhanced management, increased scalability, and price top the list Greg White is storage brand manager for small and medium business at Dell. In that position, he is evermindful of where SMBs have been, and where they’re going with their storage strategies, which are increasingly being formulated for highly competitive market environments. White is also a key cog in the Dell-Microsoft alliance that produced the Dell™ PowerVault™ NX1950, a comprehensive system that combines block and file storage functionality in a single box. In this interview, he spoke to technology writer Bruce Hoard about the business value of unified network storage systems to SMB users. Q: There’s a lot of confusion in the storage market. What are the most common questions that SMB users have about unified storage systems, and how do you respond to them? White: SMBs want to know how easy it is to implement and use. We respond by pointing out that there are wizard-based tools that come with unified storage, and it is designed for simplicity and ease of management. Q: How do you respond when SMBs ask about using both block- and filebased data? White: Most users need file-serving capabilities for their Windows systems, and many want to deploy block-based iSCSI communications for their Exchange environments. When they use the Dell PowerVault NX1950, which includes the Windows® Unified Data Storage Server, they are optimized for performance. Q: These days, it seems like saving money is a top-of-mind topic for users and vendors alike. Describe how unified storage systems drive down TCO in SMB organizations. White: The management and administrative cost reductions using the simple wizard-based Windows solution are one example of that. With that approach, it is easier to implement your backup solutions, so if you’ve got everything in one place, your backup is simpler, faster, and easier than having islands of storage with a tape drive for each, and having to run all that through the network. Another area that drives down TCO involves utilization of servers and storage. If you’ve got multiple servers doing different things, you end up incurring higher costs for maintaining, troubleshooting, and patching, as opposed to having a consolidated box. There are also savings to be realized in software licensing and implementation. TECHNOLOGY BRIEFING • A Great Leap Forward in Storage for the SMB • JUNE 2007 Q: What about shortened ROI? White: Small businesses are always time-constrained and they frequently lack IT resources. So if they have to outsource IT functions, it costs them a lot of money. On the other hand, with single-instance store that comes with Windows Unified Data Storage Server, you eliminate all those redundant files throughout the system, which frees up space, and you don’t have to put as much into hard drive resources. You are also better able to control and manage the growth of data. Q: Previously, large companies were most commonly associated with issues relating to compliance. Now the pressure seems to be affecting smaller firms as well. What are the benefits of unified storage when it comes to the compliance challenges SMBs face? White: When you have a unified storage system, it’s much easier to back up your data because it’s in one central location, as opposed to being spread across your email server, your database server, your file server, and individual desktops. You also have administrative controls via Windows Unified Data Storage Server that allow you to control access from a central location, which is much easier than managing it from multiple locations. Moreover, there are advanced software features such as snapshotting included free in the OS, but [which] would cost extra in other systems. Q: Are there any trade-offs involved with unified storage systems? White: There may be compatibility problems with your legacy com- pliance system, for example, with email archiving. As a result, you may have to restructure your whole compliance solution by implementing new hardware and software. This rarely happens, and when it does, it is usually in specialty situations. Microsoft and Dell are working hard to maximize the features they offer in terms of price/performance. GREG White SMB STORAGE BRAND MANAGER, DELL Q: Users are always interested in hearing about real-life case studies. Describe how a typical SMB environment would benefit from unified storage. White: Typically, a company with between 100 and 250 employees would purchase a unified storage system because they have not planned ahead for storage growth, and they are sick of managing multiple direct-attached storage systems spread across their business. They are looking for something that would allow them to consolidate their file servers and block storage in a simple, single-system environment. They’re looking for reduced management expenses and increased scalability capabilities. They don’t want to have to learn a whole new way of provisioning storage. Overall, they want to elimi- nate the complexity of their IT infrastructure. Q: When it comes to the bottom line, what are the business benefits realized by SMBs when dealing with the DellMicrosoft alliance? White: For starters, many of them are familiar with the Windows environment and how that works. By having that on a Dell system that they can customize, they can realize all the benefits of a direct relationship with Dell, so they can talk to the sales rep, who can help them set up what they need—nothing more, nothing less. Their system is set up to scale over time using the Dell hardware, but they still have that familiar relationship with Microsoft operating systems and software. And they get a lot of value out of the features that Microsoft incorporates, whereas they would have to pay extra in other environments. Microsoft and Dell are working hard to maximize the features they offer in terms of price/performance that has been previously lacking in this area. Q: What future plans do you have for the PowerVault NX1950? White: We have recently announced the ability to expand the PowerVault NX1950 to 45 drives. The middle of the year we will be introducing the SAN gateway, so you will be able to use it as a gateway on an EMC array. And, you will get that ability to bring some value into the gateway area as well, and have something for larger-scale customers who already have the SAN in place. w TECHNOLOGY BRIEFING • A Great Leap Forward in Storage for the SMB • JUNE 2007 NAS FOR THE MASSES Dynamic Duo of Storage Dell and Microsoft pack a wallop for SMBs seeking affordable, scalable network storage solutions BY BRUCE HOARD B y combining forces on the Dell™ PowerVault™ NX1950 and the Microsoft® Windows Unified Data Storage Server that drives it, Dell and Microsoft have established themselves as a potent force in the storage market. It’s a case of familiarity breeds competitive edge for the growing number of small and midsize businesses or SMBs moving to unified network storage. Jeff Glenn is a perfect example of that group. He is CIO of Selection. com, a Cincinnati-based SMB that performs background checks for companies throughout the United States. He is also a heavy Dell server user who is currently implementing a PowerVault NX1950. Like many SMB users, Glenn likes the security of dealing with a single vendor. “Because we were already a Dell shop, we knew the value of having one vendor we could go to for all of our servers, and now adding in our SAN made that relationship incredibly attractive,” he declares. “Everything that I have is supported by them with their Dell Gold contracts.” Support is one of many advantages offered by the Dell-Microsoft alliance. According to Greg Schulz, founder and senior analyst at Stillwater, Minn.-based market researcher StorageIO, Microsoft’s expertise in iSCSI and NAS technologies is another. As Schulz puts it, “Surprisingly to a lot of people, Microsoft is one of the largest, most dominant providers of NAS technology—file-serving technology—whether it be via standard Windows file-serving or via their Windows storage serverbased technology.” PowerVault NX1950 Outshines NetApp FAS270 That expertise is in plain view with the PowerVault NX1950. Introduced last December, the PowerVault NX1950 has given Dell a distinct competitive advantage over products such as the Network Appliance FAS270, according to independent analysts. In fact, Steve Norall, senior analyst with the Taneja Group, based in Hopkinton, Mass., says the PowerVault NX1950 can now almost double the performance of the FAS270 at 50% of the cost. “The Taneja Group sees the NX1950 as significant because it brings enterprise-level networked storage features to the midrange NAS market,” Norall notes. He adds, “This huge segment faces very serious challenges around storage management. Stored data is typically growing at a rate of 60% to 100% a year, yet many SMBs and remote office/branch office organizations lack the IT administrators to manage it.” Norall goes on to say that the PowerVault NX1950 is “focused on simplicity,” pointing out that Dell preinstalls a software stack, TECHNOLOGY BRIEFING • A Great Leap Forward in Storage for the SMB • JUNE 2007 preconfigures network protocols, and provides an installation wizard. The administrative console offers a centralized view of all system operations, and can be run either remotely or locally. Other wizards help streamline storage provisioning and carry out various management tasks. The unified network storage system also offers single- or dual-node cluster configurations with a redundant SAS back-end storage array scaling up to 45 drives. Addressing the advantages of the Dell-Microsoft storage alliance, Norall declares: “You have your two preferred suppliers essentially for the SMB market, and they’re coming together to deliver a unified solution for your data storage needs. That is obviously significant, and if I’m an SMB user, I am going to look at it very closely.” Striving for Simplicity When it comes to reducing complexity and simplifying system management, the PowerVault NX1950’s trump card is the familiarity so many SMBs already have with Microsoft operating systems. That pays off with this new product because it runs the Windows Unified Data Storage Server operating system, which closely resembles other Windows environments. System management is simplified because the PowerVault NX1950 combines iSCSI and NAS technologies in a single location, eliminating many redundant devices. It’s also easier to protect pertinent devices, because they are not spread uncontrollably across IT infrastructures. Windows Unified Data Storage Server can also be fully integrated with legacy infrastructures, which gives users access to full Active Directory® capabilities. Active Directory is the distributed directory service included with the Microsoft® Windows Server® 2003 and Windows® 2000 Server operating systems. Windows Unified Data Storage Server also enhances security by protecting against manin-the-middle attacks and other breaches. Best of Breed According to Claude Lorenson, group product manager in Microsoft’s storage division, what users are looking for is a best-of-breed scenario that includes Dell’s very efficient, stable, and easy-to-use hardware coupled with Microsoft’s state-of-the-art software. Asked what storage market dynamics Dell and Microsoft are watching with an eye toward future product announcements, Lorenson says the pair is interested in how well the iSCSI capabilities built into the PowerVault NX1950 will be received by users. That will determine how prominent block-oriented technology is in future storage solutions. Disaster recovery is another area of interest for Microsoft and Dell. “There are many things that we can add to the product that will make disaster recovery between sites very simple,” Lorenson asserts. “So depending on how big a need there is, this is something that we are also going to focus on.” Questions for Vendors StorageIO’s Schulz cites several key questions that potential unified network storage users should put to vendors. The first is: How is it going to be supported? By that he means what activities must occur in order for the system to operate at peak efficiency, and which of those activities can be performed by users, as opposed to outside service organizations? Other questions include: What will it cost to keep the system up and running? What are the hidden costs for capabilities such as snapshots, point-in-time copies, and remote replication? According to Schulz, the PowerVault NX1950 has satisfactory answers for these questions. For example, he says the underlying Windows Unified Data Storage Server software is extensible and flexible. That flexibility is reflected in Dell’s announcement that the PowerVault NX1950 can be deployed with either a single or dual redundant controller-type configuration for high availability. Partnership Embraces SMB Market The Dell-Microsoft storage alliance is bringing easy-to-use, unified network storage capabilities to SMB customers who have struggled with storage in the past. Whereas other vendors have haltingly entered this lower-end market, Dell and Microsoft have embraced it. According to Praveen Asthana, director of marketing, storage, and networking at Dell, “We look at our SMB customers not as small customers, but as customers with large data needs, and we attack the data needs problems, not the size-of-customer problem.” w TECHNOLOGY BRIEFING • A Great Leap Forward in Storage for the SMB • JUNE 2007 emerging trends iSCSI Growth on the Rise in Small and Big Shops iSCSI expected to account for 20% of external disk storage by 2010 BY Deni Connor I SCSI technology is entering the mainstream as growing numbers of companies consider the storage alternative for its lower costs and management simplicity, according to analysts. The technology lets blocks of storage data be transported over Gigabit Ethernet and is easier and less expensive to install than Fibre Channel. Because it runs over Gigabit Ethernet networks, iSCSI doesn’t require host bus adapters in servers and Fibre Channel switches. And, for the most part, IT administrators don’t have to have special knowledge and training in storage technology to deploy iSCSI. According to IDC, while iSCSI today accounts for only a 3% share of external disk storage, the research firm expects it to reach more than 20% by 2010. Market Drivers Enterprise Strategy Group Inc. (ESG) said that more than 20,000 customers have deployed iSCSI. The research firm surveyed 500 IT managers and found that 17% are using iSCSI in production environments and an additional 20% plan to implement the technology. Lower costs and iSCSI’s ease of management are among the factors driving adoption—and not only among small and midsize businesses. Nearly 20% of businesses with 20,000 or more employees have deployed iSCSI, ESG reports. Meanwhile, as shipments of iSCSI storage products have started climbing, start-ups specializing in iSCSI have emerged, such as Sanrad Inc., LeftHand Networks Inc., Intransa Inc., and EqualLogic Corp. EqualLogic, by its last count, has more than 2,000 customers. EMC Corp., meanwhile, added iSCSI capa- MORE THAN 20,000 customers have deployed iscsi According to Enterprise Startegy Group Inc. bility to its midrange Clariion arrays and to its high-end Symmetrix DMX storage systems. Network Appliance Inc., a leader in network-attached storage systems, has logged more than 30% market share for iSCSI systems shipped in 2006, according to IDC. For its part, Sanrad claims more than 600 customers are using its iSCSI technology, and this week the vendor introduced a midrange iSCSI switch. Sanrad’s V-Switch 3400 is a three-port iSCSI switch with four Fibre Channel ports. The V-Switch has dual hot-swappable power supplies and is managed via SNMP, a graphical interface and a commandline interface. It supports as much as 4 petabytes of storage capacity and starts at $26,000. w This article originally appeared in Network World on March 26, 2007. 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