clustering

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Terracotta buys Quartz

Open source Java clustering software developer Terracotta announced its intent to buy an open source job scheduler known as Quartz. The integration of Quartz into Terracotta's platform will ease high availability job scheduling and scaling applications to multiple nodes, the company said. Quartz is currently integrated into...

Tags: Job, Clustering, Terracotta, Quartz, Recruitment & Selection, Open Source, Human Resources, Workforce Management, Paula Rooney

Blog posts 2009-11-19

Yes, Red Hat Enterprise Virtualization 3.0 will run on Linux

This solidifies my decisionI currently have a cluster of a dozen RHEL 5.3 Cluster Suite servers. They have been a nightmare to use, maintain, and keep working right. Red Hat's clustering software is horrendously buggy. I never have gotten virtualization to work properly with the whole mess.After...

Tags: UNIX, Operating systems, OPEN SOURCE, Servers, Linux, UEC, Red Hat Enterprise Linux, kvm, cluster, Red Hat Inc.

Discussion threads 2009-11-11

Transportation Firm to Cut Power Costs by 33 Percent With Virtualization and Clustering

After struggling with disparate IT technologies based on Red Hat Linux, EmpireCLS Worldwide Chauffeured Services decided to transform its infrastructure using Microsoft software and HP hardware. With its new environment based on Windows Server 2008 R2, EmpireCLS has cut support calls by 75 percent and increased IT administrators' productivity by...

Tags: Virtualization, Clustering, Microsoft Corp., Transportation, Microsoft Windows Server 2008, Linux, Open Source, UNIX, Operating Systems, Microsoft Windows, Software

Case studies 2009-10-01

Clustering and Queue Replication

This BorderWare Technology paper details the unique, native features and functionalities that support the multiple levels of redundancy available with the BorderWare Security Platform. The BorderWare Security Platform for Email Security is a set-and-forget, all-inclusive messaging appliance that is specifically designed for enterprises to centrally control, protect and manage both...

Tags: Clustering, Borderware Technologies Inc., Messaging, Replication, Instant Messaging, Groupware, Internet, Online Communications, Enterprise Software, Software

White papers 2009-08-01

An Improved Cloud Classification Algorithm for China's FY-2C Multi-Channel Images Using Artificial Neural Network

The crowning objective of this research was to identify a better cloud classification method to upgrade the current window-based clustering algorithm used operationally for China's first operational geostationary meteorological satellite FengYun-2C (FY-2C) data. First, the capabilities of six widely-used Artificial Neural Network ANN methods are analyzed, together with the comparison...

Tags: Algorithm, China, Method, Network, Clustering, Neural Network, Molecular Diversity Preservation International, Engineering

White papers 2009-07-14

Consolidating SQL Server for Lower TCO: How to Achieve a Simple, Highly Available Consolidated SQL Server Environment Using Shared Data Clustering by HP PolyServe Software

This paper describes a solution: HP PolyServe Software for Microsoft SQL Server. For SQL Server deployments, HP PolyServe Software allows storage capacity to be matched appropriately to need, provides high availability without introducing extra complexity or extra cost, and actually simplifies the life of administrators. The software supports Microsoft SQL...

Tags: PolyServe Inc., Hewlett-Packard Co., Microsoft SQL Server, Environment, Clustering, Server, TCO, Databases, Enterprise Software, Software, Data Management

White papers 2009-07-01

Unsupervised Static Discretization Methods in Data Mining

Discretization of real-valued data is often used as a pre-processing step in many data mining algorithms. This paper reviews some important unsupervised discretization methods among which there are the discretization methods based on clustering. The paper proposes a discretization method based on the k-means clustering algorithm which avoids the O(n...

Tags: Clustering, Discretization Method, Data Mining, Business Intelligence, Marketing Research, Databases, Enterprise Software, Software, Data Management, Marketing

White papers 2009-04-17

Clustering on Check Point IP Appliances

Modern networks are carrying both the financial transactions and the information that is the lifeblood of today's businesses, which makes network outages or even degraded performance unacceptable. Just as the networks are evolving, so have the frequency and sophistication of malicious attacks against those networks. Providing secure communications to customers...

Tags: Check Point Software Technologies Ltd., Network, Clustering, IP, Networking

White papers 2009-04-16

Consolidated Disaster Recovery

Traditional disaster recovery infrastructures including tape backup, image capture, high-end replication and hardware clustering have failed to keep pace with business requirements for recovery speed and integrity at a reasonable cost. Budgetary constraints and the high cost and complexity of established recovery solutions mean that most organizations can afford to...

Tags: Clustering, Disaster Recovery, Servers, Data Management, Hardware

White papers 2009-04-01

Assessing Performance in HP LeftHand SANs: HP LeftHand Starter, Virtualization, and Multi-Site SANs Deliver Reliable, Scalable, and Predictable Performance

The HP LeftHand Starter, Virtualization, and Multi-Site SANs deliver reliable, scalable, and predictable performance for virtualization as well as for enterprise production environments that require extreme availability and data protection. Storage clustering allows the resources of multiple storage arrays to be aggregated together with HP LeftHand SANs into a robust,...

Tags: Hewlett-Packard Co., Virtualization, Performance, Clustering, SAN, Storage Clustering, Storage Area Networks (SAN), Storage Management, Storage, Performance Management, Hardware, Human Resources, Workforce Management

White papers 2009-04-01

SQL Server 2008 Failover Clustering Rolling Upgrade

The presenter of this webcast covers enhancements made in SQL 2008 Failover Clustering. The presenter briefly discuss about the new installation process for SQL Server 2008 Failover Clustering. This webcast focuses on "Rolling Upgrade" to ensure that you have minimum downtime.

Tags: Microsoft SQL Server, Clustering, Microsoft SQL Server 2008

Webcasts 2009-03-25

Scaling Web Applications in a Cloud Environment Using Resin 4.0

Resin 4.0 offers unprecedented support for deploying and scaling Java and PHP web applications in a cloud environment. This paper discusses the technical underpinnings of Resin 4.0's sophisticated clustering capabilities that provide reliable and fast distributed sessions, distributed object caching, and cloud-wide application deployment all while adding and removing application...

Tags: Environment, Clustering, Application Server, Web Application, Caucho Technology, Cloud Computing, Application Servers, Middleware, Enterprise Software, Software

White papers 2009-03-04

VMWare's filesystem clustering cracked open

VMWare's filesystem clustering cracked openwhat customers wantCustomers should want open standards and non-proprietary flexibility. They should always have the option of switching vendors with as little stress as possible. Why would any company want to lock itself in? It takes away any incentive for the vendors to...

Tags: clustering, VMware Inc., filesystem clustering, VMFS, file system

Discussion threads 2009-03-03

VMWare's filesystem clustering cracked open

Late last week, an important plate in VMWare's proprietary battle armor was cracked open when Fluid Operations, the company behind the eCloudmanager storage virtualization product open-sourced on the community Google Code site their clean room implementation of VMFS, the clustered locking file system used by VMWare's ESX Server hypervisor...

Tags: Hypervisor, Clustering, File System, VMware Inc., VMFS, Virtualization, Ip storage, Open Source, Hardware, Jason Perlow

Blog posts 2009-03-03

Continuous Cluster Replication and Direct Attached Storage: High Availability Without Breaking the Bank

When Exchange Server 4.0 was introduced, internal drives (or, for the well-funded, direct attached storage) were widely used. When the author first started working with Exchange in the mid-1990s, many of the organization's Exchange Servers used 2GB internal drives; these servers provided file and print services, and also ran SMS....

Tags: Bank, Direct-Attached Storage, Clustering, Microsoft Exchange Server, High Availability, Replication, 3Sharp, E-mail Servers, Storage, Groupware, Servers, Enterprise Software, Software, Hardware

White papers 2009-03-02

A SAS/JMP Integration for Implementation of a Clustering Algorithm for High Dimensional Low Sample Size Data

A SAS macro solution is presented for clustering of High Dimension al low Sample Size HDLLSS data using a new algorithm based o p-values as similarity measure. The algorithm PPCLUST was developed by von Borries (2008) and implemented using SAS macro language with the macro autocall facility and window macro...

Tags: Algorithm, Clustering, SAS Institute, Integration

White papers 2009-02-27

High Availability Choices for Exchange Server 2007: Continuous Cluster Replication or Single Copy Clustering

Each year, more organizations are determining that e-mail is a mission-critical application that hosts an increasing share of intellectual property. With this reliance on e-mail services, the need for highly available systems where messaging services must be accessible at all times has become more apparent, and organizations are making significant...

Tags: Microsoft Exchange Server 2007, Clustering, Microsoft Exchange Server, High Availability, Messaging, Replication, 3Sharp, E-mail, Instant Messaging, Groupware, Online Communications, Internet, Enterprise Software, Software

White papers 2009-02-16

Oracle SOA Suite Clustering Utility Guide

This paper describes the requirements and usage of the clustering utility for Oracle SOA Suite that simplifies adding and configuring a new node to a SOA Suite cluster. The scope is specific to Oracle SOA Suite and does not cover the broader areas of Oracle Application Server Cloning, for which...

Tags: Oracle Corp., Clustering, SOA, Service-Oriented Architecture (SOA), Middleware, Application Servers, Enterprise Software, Web Services, Software

White papers 2009-02-01

Using Availability and Clustering Software to Maintain Business Continuity in the Era of Virtualization

The market for highly available servers and high availability is growing, reflecting enterprise demand for solutions that strive to maintain business continuity. These solutions are becoming more important for operational viability, especially as organizations increase their adoption of virtualized computing solutions. This Executive Brief describes high-availability options, particularly Availability And...

Tags: Virtualization, Clustering, Business Continuity, International Data Group, It Services

White papers 2008-11-01

From High Availability and Disaster Recovery to Business Continuity Solutions

This paper provide an overview of the state-of-the-art architectures for continuous availability, briefly covering such traditional concepts as High-Availability HA clustering on distributed platforms and on the mainframe. It explains how HA can be achieved in environments based on Sun Microsystems J2EEe, which differ from classical clustering approaches, and the...

Tags: Clustering, High Availability, Business Continuity, Disaster Recovery, Data Management

White papers 2008-10-27