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 disk caching


Server Appliances -


disk caching  Although price/performance is good, disk quantity limitations may require customers to add a storage array. IBM For the Netfinity 4000R: Availability: These servers, although announced, are not yet available. Fuzzy focus: Although it is based on the Network Engines WebEngine (an appliance), it is unclear whether this server will be an appliance, or just a very short GP server. Network Appliance: Maintaining their NAS lead: As the field gets more crowded, it will be difficult for NetApp to maintain a

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Software Functionality Revealed in Detail

We’ve opened the hood on every major category of enterprise software. Learn about thousands of features and functions, and how enterprise software really works.

Get free sample report
Compare Software Solutions

Visit the TEC store to compare leading software by functionality, so that you can make accurate and informed software purchasing decisions.

Compare Now

Documents related to » disk caching

How Do You Categorize Servers?


The term 'PC Server' encompasses a wide range of computing hardware features and functionality. So, how can the entire range be subdivided into more manageable groups? This note discusses one way of separating them, and the functional characteristics associated with each group.

disk caching  box . For example, hard disk storage within the server may be minimal (just enough to hold the OS), and the server is designed to be rack-mounted with a large RAID array installed in the same rack. Examples : Netfinity 7600, ProLiant ML570, PowerEdge 6400, NetServer LH6000   Super-Enterprise: Users : Generally exceeding 500 users/clients, sometimes more than 1000 Pricing : Starts in the $20K range for basic systems, but a fully configured system, plus associated storage, memory, and options can exceed Read More

Informatica Morphs into Enterprise Decision Support Vendor


Informatica Corporation, long an established vendor in the Extract/Transform/Load (ETL) market space, has morphed themselves into a vendor of solutions for the "e-Business infrastructure". In conjunction with their contract to build an enterprise data warehouse for the United States Postal Service and their MX2 metadata exchange initiative, Informatica is reinventing itself.

disk caching  Pipeline Processing , which combines disk staging with in-memory server-side caching to fully leverage system resources. It also has an FTP integration feature which helps set up FTP parameters for flat file transfers (flat files need to be on the same machine as the ETL server as parsing files across an NFS mount is inefficient). In addition, the product contains an open metadata repository, a pipelined, multi-threaded server engine, and a scheduling mechanism. PowerMart was followed by PowerCenter in Read More

In-Memory Analytics: A Multi-Dimensional Study


The primary bottleneck to high-performance multidimensional analysis has been slow hard drive speed—the time it takes for data to be transferred from disk storage to random access memory (RAM). With crashing RAM prices and 64-bit addressing, in-memory architecture provides new and innovative solutions for online analytical processing (OLAP). This article looks at why and how in-memory technology transforms analytic applications for BI.

disk caching  with semiconductor-based memory, while disk storage suffers the unavoidable bottleneck associated with rotation speed of magnetic disks. Low cost, high performance hardware is making it possible for enterprise software to move towards in-memory architecture. A 64-bit architecture is central to realizing the benefits of an in-memory analytics solution. In theory, 64-bit architecture supports up to 16 exabytes (EB) or 16x106 terabytes (TB); in reality, however, the actual amount of available memory is much Read More

SAP HANA: A Fast Developing “Toddler” - Part 1


It doesn’t take an exceptional industry analyst or market observer to realize that SAP HANA has become one of the pillars of SAP’s future strategy (possibly even a “bet the farm” move). HANA is a major part of SAP’s goal of being a next-generation database management provider, and SAP now has a number of relational database assets, both developed on its own and from the Sybase acquisition. In fact

disk caching  10,000-times performance improvement over disk-based databases 2,000 Amazon Web Services (AWS) instances 1,791 trained consultants Product Performance One platform for handling  online transaction processing (OLTP)  and  online analytic processing (OLAP) , structured and unstructured data, fresh data and big data No tuning, no indices, no materialized views, no caching 33 SAP solutions powered by SAP HANA 100 TB benchmark on 16 node IBM X5 server series 20-times data compression SAP NetWeaver Read More

Intel Server Trends


The Intel-based server market is one of the most hotly contested segments in the industry. What are the key trends in this market, and what will they mean to users, vendors, and the products themselves?

disk caching  and some RAM and disk drives and Presto! now there's a server!) Consolidation also means fiercer competition between the remaining vendors. Increased competition usually results in users benefits, either through reduced pricing as vendors fight to increase market share, or through increased functionality available. On the other hand, users may now find their choices effectively limited, similar to network TV before the rise of cable. While the product selection available is adequate and suitable for the Read More

Acer to Jump on Internet Appliance Bandwagon


Computer maker Acer is planning to launch a line of Internet appliances at next month's Consumer Electronics Show, in Las Vegas, according to a company source.

disk caching  heavy-duty servers and major-league disk farms. Although the marketplace in general shows a willingness to recycle old ideas as if they were suddenly new, we question whether resurrecting the big server/relatively dumb terminal idea is where the market should head. Until the world goes back to this computing model, this product is best left at home. Read More

How to Make Virtualized iSCSI SANs Work for You


Enterprises of all sizes are building flexible storage infrastructures by using iSCSI and virtualization technologies that let them allocate and shift storage area network (SAN) resources dynamically in response to the demands of their virtualized server environments. Find out how a virtualized infrastructure with virtualization technologies can help you achieve an IT infrastructure that is simple to manage and scale.

disk caching  Given sufficient memory and disk storage, a single hardware system running server virtualization software can support many guest virtual machines. Applications and data are processed in exactly the same way as in the physical environment, using the same operating system facilities for making system requests. The only difference is that the operating system is now a virtualized guest running in a virtual system environment. Virtual machine files can be transparently migrated from one server hardware Read More

Closing the Legacy Gap: Protecting Legacy Systems with FDE


Protecting your company’s data is not only wise, but often legally necessary. In order to beef up their data security programs, more companies are implementing full disk encryption (FDE). In the past, FDE was software based, which left it open to greater security risks. With the advent of new technology, however, it is now possible to migrate from software- to hardware-based FDE while still protecting your existing systems.

disk caching  companies are implementing full disk encryption (FDE). In the past, FDE was software based, which left it open to greater security risks. With the advent of new technology, however, it is now possible to migrate from software- to hardware-based FDE while still protecting your existing systems. Read More

Compaq's High-End Wintel-based Rack Servers - Working Hard to Stay #1


Compaq Computer Corporation, the #1 volume manufacturer of PC Servers, both US and worldwide, is fighting a strong challenge by Dell Computer. This note assess the strengths and weaknesses of its four-CPU rackmount servers.

disk caching  number of peripherals (usually disk drive subsystems). These compete primarily in the enterprise computing market space. Compaq's (~30% market share) largest competitors are Dell, HP, and IBM (10-15% each). The rackmount market is growing, partly due to server market growth in general, and partly due to a shift from pedestal/floor-standing/ tower servers. It is believed that rackmount servers will be about 60% of the general server market within 1-2 years (vs. 30-40% 2-3 years ago), and greater than 80% Read More

The 2008 Handbook of Application Delivery: A Guide to Decision Making


IT organizations can no longer manage networks in isolation from the applications they support, requiring a shift from focusing on devices to a focus on performance. But a number of factors complicate the task of ensuring acceptable application performance, including the lack of visibility into application performance. Learn tips to plan, optimize, manage, and control your application performance and improve delivery.

disk caching  the receiver maintain large disk-based caches of byte strings previous sent and received over the WAN link. As data is queued for the WAN, it is scanned for byte strings already in the cache. Any strings that result in cache hits are replaced with a short token that refers to its cache location, allowing the receiver to reconstruct the file from its copy of the cache. With byte caching, the data dictionary can span numerous TCP applications and information flows rather than being constrained to a single Read More

No Back Doors. No Open Windows.


To boot or pre-boot, that is the question. There’s no doubt that operating systems (OSs) are complicated given the sheer amount of code that must be flawlessly interfaced and the potential vulnerabilities that can ensue. While full disk encryption (FDE) is one step closer to a more secure OS, encryption without strong authentication isn’t enough. For security-conscious users, pre-boot authentication is the only way to go.

disk caching  can ensue. While full disk encryption (FDE) is one step closer to a more secure OS, encryption without strong authentication isn’t enough. For security-conscious users, pre-boot authentication is the only way to go. Read More

Traffic Audits Make Strange Bedfellows: Part II - The Audit Process


With traffic being the lifeblood of an e-commerce site the Marketing crew knows that the traffic numbers are going to be audited. And they look to the CIO to make sure that the numbers will pass muster. If there’s a problem with the numbers, the CIO may be blamed. So it’s important to understand what auditors want to see, and to make sure that your collection and reporting procedures are appropriate. The greatest danger is having to restate numbers that you’ve already provided to advertisers.

disk caching  Audits Make Strange Bedfellows: Part II - The Audit Process This is Part II of a two part article. Part I : The Why's and What's of Auditing Part II : The Audit Process What's in an audit? The audit is a process for verification of the numbers that you report to your advertisers. Audits can be performed in a number of different ways. Server-based audits examine data that is available at the server, most importantly traffic logs and web logs. An auditing organization will prowl through the logs to Read More

IBM's Four-CPU Wintel-Based Rack Servers High Performance, High Cost


IBM's four-CPU servers, the Netfinity 5500 M20 and 7000 M10, yield top notch web-focused benchmark figures, but also very high price/performance figures for mainstream applications.

disk caching  number of peripherals (usually disk drive subsystems). These compete primarily in the enterprise computing market space. IBM's market share) largest competitors are Compaq, Dell, and HP. (Market share figures for Intel servers is shown in Table 1 and Graph 1.) The rackmount market is growing, partly due to server market growth in general, and partly due to a shift from pedestal/floor-standing/ tower servers. We believe that rackmount servers will be about 60% of the general server market within 1-2 Read More

An Introduction to Load Balancing


Is it possible for a business to ensure uninterrupted, secure, and high-performance access to network-based business applications and web sites? Yes. With network load balancers, user requests are evenly distributed among available servers so that individual servers do not become overwhelmed. Learn about the basics of load balancing and how it can improve the performance and security of your business applications.

disk caching  many computers, processes, hard disks or other resources in order to get optimal resource utilization and decrease computing time. SSL offloading — Relieves a Web server of the processing burden of encrypting and/or decrypting trafic sent via SSL, the security protocol that is implemented in every Web browser. The processing is ofloaded to a separate device designed speciically to perform SSL acceleration. SSL VPN — Provides a comprehensive, secure remote access technology for remote users without Read More