Baratos, potentes y efectivos

De acuerdo, los expertos de marketing nos matarían si vieran que utilizamos la palabra “barato” y, para ser francos, nuestros precios no lo son tanto: 7.345 libras esterlinas es una cifra considerable para un par de balanceadores de carga de alta disponibilidad. Especialmente, si tenemos en cuenta que se basan en software “gratuito”.

Lo que está pagando es que este dispositivo se ha examinado, probado y perfeccionado en muchos sitios web de gran tamaño administrados por personas de talento que quieren resultados, no ardides publicitarios.

Colaboradores en los que puede confiar

Utilizamos servidores de alta calidad y alto rendimiento de Supermicro, Inc. La integración, el montaje, las pruebas y la distribución y mantenimiento de los sistemas los gestiona Armari Ltd.

¿Cuál es la visión de nuestra empresa?

Como director general, siempre he creído en comercializar únicamente productos que funcionen, que sean fáciles de utilizar y que no incorporen complementos bonitos pero inútiles.

¿Por qué no puedo efectuar la compra a través de mi distribuidor?

Obviamente puede intentarlo, pero es muy probable que le aconsejen el proveedor que les permita a ellos sacar una mayor tajada de los beneficios. Los distribuidores quieren beneficios de hasta un 55% en algunos casos. ¿Realmente desea que aumentemos el precio en un 55%?

¿Por qué código abierto?

Como dice el gran Linus: " Sólo utilizo lo que funciona". Aproximadamente un 30% de nuestros clientes utiliza únicamente servidores de código abierto y el 70% restante utiliza una combinación de servidores de propiedad (Apple, Windows, Solaris, AIX, Oracle, etc.). Personalmente, no soy un fanático de Linux, pero me gusta cómo funciona y es excelente para un dispositivo de red. Windows 2003 Server es una fabulosa obra de arte difícil de superar en un entorno empresarial. Un clúster de servidores Microsoft Terminal Server con balanceo de carga es un excelente modo de llevar un negocio.

Una empresa responsable

Como empresa, hacemos donaciones a varios proyectos de código abierto, fundaciones de lucha contra el cáncer, fundaciones para erradicar la pobreza y, naturalmente, para las víctimas del Tsunami. Por motivos medioambientales, toda la documentación y software están disponibles en línea, en conformidad con la norma ISO 14000.

¿Qué es un balanceador de carga?

Un cliente solicita una página de www.sutienda.com

El balanceador de carga reenvía esta solicitud a un servidor web de un conjunto de servidores web idénticos.

El servidor web responde directamente al cliente ajeno a cualquier artimaña.

Y ahora llega lo bueno:

Si el balanceador de carga detecta un problema con uno de los servidores web, lo excluye automáticamente del clúster hasta que funcione de nuevo. En caso de realizar mantenimiento, puede incluir y excluir servidores del clúster sin que ello afecte a sus clientes. Si experimenta un repentino aumento de la demanda, simplemente agregue más servidores. Si el balanceador de carga principal falla, la unidad secundaria lo reemplaza automáticamente.

¿Hemos mencionado que no nos gustan los puntos de fallo únicos?

Pero, ¿en qué aplicaciones puedo balancear la carga?

 El dispositivo Loadbalancer.org es ideal para balancear la carga de las aplicaciones siguientes:

• Portales y sitios web
• Comercio electrónico, puertas de enlace de aplicaciones HTTP y HTTPS
• Servicios de Terminal Server, clústeres de aplicaciones Citrix o Tarentella (protocolo de escritorio remoto)
• Servicios de correo electrónico como SMTP, POP3, IMAP, etc.
• Clústeres de bases de datos, esto es, Microsoft SQL Server, MySQL, Oracle, Sybase, etc.
• Cualquier otro protocolo TCP como SSH, TELNET, FTP, etc.

	"Our solution at the time was running close to the limit of what I was comfortable with for its rating, but the logical choice for us to move on to a more powerful same supplier solution was not an option. Cisco stopped producing a stand alone solution and built the load balancing technology into a product range that wasn’t suitable for our needs. The search for a suitable replacement began and as well looking at offerings from the usual suspects we reached for Google The two Sledgehammer high availability clustered pairs we bought were hugely cost effective while at the same time offering the fault tolerance level ASOS needed to give the confidence to commit to the service levels ASOS aims to provide its customer base" Paul Cottingham ASOS.com
	"Loadbalancer provides us with the ability to manage our backend customer applications, supplying us with a fault-tolerant, redundant, high availability solution at an affordable price." Geert Bogaert Managing Partner
	"We were already using LVS but wanted a solution with quality technical support. Loadbalancer.org have easily exceeded our requirements." Johannes Grumböck Porsche Informatik GmbH
	A rock solid, 100% fault tolerant and cost effective solution that is perfect for the cost conscious IT professional, who does not want to spend the extra £10k on functionality he will never use, as with most other vendors. These appliances do exactly what what it says on the tin. I'm over the moon! =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- MyMovies.Net Ltd. Paul Richards - Director of Operations.
	"We shopped around and compared priced. loadbalancer.org beat the competition hands down. And not only that, but it was up and running in minutes, with a smart, easy to use interface. Our units have been running for just over 2 years and have never failed and have been a lifesaver to our organization" Brook Davies IT Director logiforms.com
	"We distribute large multi-terabyte global datasets based on satellite remote sensing for environmental (land use, climate change and biodiversity) research using Google Earth as a visualisation tool, see here. The loadbalancer enables us to use many low-cost desktops as servers and achieve better outcomes than having investing in fewer but high end (high cost) servers. The loadbalancer has been easy to set up and works like a dream. We can very cheaply add new server capacity as the demand grows and the failure of individual servers is also easy and inexpensive to solve with no disruption to QoS" Dr. Mark Mulligan University of London
	"We've been using our clustered pair to run a MS Terminal server farm for 4 years with no problems." Matthew Abrahams All3media
	"We have had a flawless performance from 2 pairs of Loadbalancer.org ENTERPRISE appliances for over 5 years without a single problem. Any downtime to our ecommerce site would be unthinkable." Gary Besta Crocus.co.uk
	"We use two pairs of enterprise loadbalancers to handle web traffic for multiple clients and many well known brands. They are extremely easy to configure and very adaptable, for instance we also use them to facilitate automated failover for mysql database servers." Simon Wilcox Digital Craftsmen
	"We use the load balancer(s) to manage traffic into our server webfarm for one of our banking clients. The load balancers ensure that web requests are processed equally among the 24 servers in our farm" Marc Murphy Ergo
	"We replaced our network load balancing with a pair of Enterprise load balancer devices for our Internal systems, the performance gain was instant, we simplified our network configuration. When we needed a load balancer for our public sites there was only one choice so another clustered pair of Enterprise load balancers were purchased. Simply put they just work." Andy Scott CrystalUK
	"We used a clustered pair of loadbalancers.org appliances to successfully handle hundreds of thousand of visitors to the official website of this years alpine skiing world championships in Are, www.are2007.com “ Johan Rolandsson DependIT
	The TOMMIE ASP hosting solution uses a Loadbalancer.org Enterprise clustered pair to help us to balance the load across our web server farm, and to allow maintenance of individual web servers without affecting the service. The solid state design, use of Open Source software and excellent value offered were major factors in deciding to go for this solution. Paul Trickey Development Director
	"We replaced a CISCO CSS with a pair of Loadbalancer.org SLEDGEHAMMER units. The change over has resulted in better performance and higher availability for our ecommerce site." Chris King Network80, LLC
	"Our site went from <2mb/sec to over 60mb/sec during the course of one week and the load-balancers never appeared under duress in any way… they slept through it. I was able to pre-configure the entire environment using vmware server to be sure that what I wanted to do would work effectively. The units are cost effective enough for us to consider deploying them in high numbers without being forced us to reduce the number of production servers we deploy to each site." Jesse Driskill Grid Networks
	"We use the loadbalancer in stress testing our web based interviewing software with thousands of concurrent connections running constantly. The loadbalancer has proved to be very reliable product and is incredibly easy to set up and configure." Paul Quinn Pulse Train
	“The Enterprise Clustered Pairs are the cornerstone of our business infrastructure. We provide Mobile Streaming Services to thousands of customers around the world, and Loadbalancer.org products ensure that we provide the highest level of customer service 24 hours a day, 365 days a year. They have ensured 100% uptime for our service, even when we have experience large scale server failures. Our technical team found that the Enterprise Clustered Pairs were incredibly easy to install and configure, but the most important feature of the Clustered Pairs is that they have continued to do their job invisibly for over a year without anybody going near them.” Andrew Saba MediaHigh
	"Eurogamer have been very happy with loadbalancers from Loadbalancer.org, particularly due to their speed and stability. We have had no down-time from our device in over 2 years and they have handled significant traffic ( >15,000,000 page impressions/month) without a hiccup. The appliance is significantly better value than comparable hardware load-balancers from other corporations. It is also a blessed relief to be free of the restrictive licensing and support practices that seem to go hand in hand with hardware network appliances from other companies. We would strongly recommend the Loadbalancer.org devices to any companies who plan to handle high volume web traffic." Nick Loman Director Eurogamer Network Ltd.
	"Our Loadbalancer.org appliances we're very easy to install and they were a fire and forget installation" Stephan Tsoucalas Cobra.Youth Communications GmbH
	"Worldsoft uses a clustered pair of sledgehammer to serve around 1 million incoming mails, 600,000 outgoing mails and serves 20k+ websites running on multiple servers." "I am very happy with your products. They are products that I CAN understand! and can trust. The management is also very pleased with the higher availibility of our services due to the loadbalancers." "We also use the loadbalancer for other services such as DNS, POP/IMAP, LDAP etc."