How to load balance an application in citrix xenapp 6. Attendees of this webinar about software load balancing include technical experts. There are other was to run load balancing as well utilization being one of them, which it does appear to be what youre doing. Software load balancing overtakes f5 and citrix hardware. But xenapp is more secure, configurable, faster and expands upon the functionality offered by microsoft rds.
The following procedure describes the basic steps involved. Architectural staff can use this document to gain an understanding of how the system will work as a. Lbdiag simulates the load balancing process for a user launching a specific application and provides a detailed report of the xenapp load balancing process. The load management section contains policy settings for enabling and configuring load management between servers delivering windows server os machines. A vda running 3 sessions will have a higher load index than a vda running 2 sessions for example. Out of the box, the load index value which can range from 0 to 10,000 is calculated based on how many sessions run on a machine. The barracuda adc continually polls the servers for various parameters, including health and load. When combined with citrix netscaler load balancing and global server load balancing gslb, a bulletproof citrix licensing server infrastructure can be achieved. When deployed with a citrix xendesktop and xenapp cluster, the barracuda load balancer adc provides intelligent load balancing to enhance application delivery.
To upgrade to the latest version of citrix virtual apps formerly citrix xenapp, it administrators must reconsider their infrastructure and also change the way theyre used to working, because updating requires a complete redesign of the solution due to architectural differences between independent management architecture ima and flexcast. The xenapp platinum reference design was designed with simplicity, reproducibility, usability, scalability. Publishing citrix xendesktop and xenapp with the barracuda load balancer adc. Im a little baffled here about why citrix has seemingly turned its back on the smb market. So the administrators can manage and update only on the master vdisk, in some case we can remove from the system itself. To add the second storefront server for load balancing with an existing storefront server, we need to create an authorization code from the first server. Network load balancing is available in both the standard and enterprise editions of windows 2008 so there shouldnt be to many excuses for not implementing. Network load balancer apache load balancer load balancing nginx load balancing software. Plb is, in fact, an extension of the cpu management feature that has been built in to xenapp presentation server for some time. I can publish and run applications from each vda just fine.
Here is a quick and easy way to load balance your citrix director instances in a xenapp or xendesktop environment. Virtual desktop infrastructure vdi also called application and desktop virtualization environments, allows anyone, employees and contractors, anywhere globally, anytime 24x7, from any device pcs, macs, desktops, tablets or smartphones, secure ondemand access to their specific set of applications and desktops, in the most efficient manner. Server 1 delivery controller with vda installed machine group 1 delivery group 1 server 2 delivery controller with vda installed machine g. The simplest way is by user count, although that doesnt sound like what youre doing. A basic knowledge and understanding of vmware vsphere and citrix xenapp is assumed. How to load balance citrix web interface with nlb xenappblog. Load balancing is defined as the methodical and efficient distribution of network or application traffic across multiple servers in a server farm. Citrix xenapp on amazon web services reference architecture. When a citrix virtual apps formerly citrix xenapp server is configured with session mode and controller mode, it is called a data collector. Explain provisioning services architecture myxenapp. Load balancing citrix xenapp and xendesktop compare adc wui demo citrix virtual desktop infrastructure vdi composed of the xenapp and xendesktop products is the market leader for vdi, according to gartners vdi magic quadrant.
Citrix netscaler sdx 11515 load balancing device 3011820e2. X rip but i still need a solution on the following problem. This certificate must match the dns name for the load balanced director servers. What i need tho is to be able to have the same app on both servers and only have 1 icon to launch the app this would be load balancing i assume. Create or install a certificate that will be used by the ssl virtual server.
In this blog post we will briefly look at architectural components of xenapp 6. Data collectors help load balance the citrix virtual apps formerly citrix xenapp servers in the farm, as they track dynamic data in the zone. When the citrix licensing service is stopped on the primary license server, netscaler load balancing and gslb can be used to fail over licensing communication to a warm standby backup. Below is my environment citrix director servers controller servers in most cases director1 and director2 a netscaler ha pair you can do this on a stand alone netscaler as well monitors. Director load balancing netscaler 11 carl stalhood. Consider the avi vantage load balancing solution, a nextgen adc with an analyticsdriven, softwaredefined architecture. This simulation includes calculating load balancing policies, worker groups, server and application load evaluators. Provisioning services works differently than machine creation services to provide resources to the users. The load balancing virtual server can use any of a number of algorithms or methods to determine. Pvs allows machines to be provisioned and reprovisioned in real time from a single shared vdisk. Lbdiag is a utility for diagnosing load balancing in xenapp 6 and later.
Preferential load balancing actually has very little to do with conventional load balancing, since they accomplish their objectives in very different ways. Intelligent load balancing is an improvement to the load balancing algorithm that has been introduced to properly balance servers in extreme scenarios where a new server is introduced while multiple logons to the farm are in process. Thats where you drop nginx in front of your current architecture, using. In the old posts, we already learned the steps to install citrix xenapp 6. Every citrix web interface server wi without any form of load balancing is a potential single point of failure in your environment. With a server os you are able to have multiple sessions to one os. In just 30 minutes, you will learn how a softwaredefined load balancing architecture can play an expanded role in delivering and scaling your applications. Buy a citrix netscaler sdx 11515 load balancing device or other.
Citrix xenapp architecture components investigation parallels. F5 eliminates the architectural complexity of citrix solutions by consolidating multiple functions into a single, integrated platform. Deploying distributed applications and services within azure can be cumbersome, atleast when you are not familiar with the different optionsfeatures you have available. Ctx115686 xenapp servers return a full load when advanced or custom load evaluators are assigned ctx105449 load manager rules explained the default load evaluator is based on. The load balancing service offers the capability to probe for health of the various server instances and to take unhealthy server instances out of rotation. This shows how to configure the bigip local traffic manager ltm using the application template for.
Software load balancing overtakes f5 and citrix hardware load. The xenapp platinum reference design is a bestpractice based comprehensive standard. Once the two storefront servers has been grouped, we can load balance these two servers with the netscaler gateway. Load balancing and intelligent load balancing ivan lorente escalation engineer slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Overloading any dependent service can degrade performance and crash systems. Load balancing features in azure marius sandbu it blog.
Learn how to implement server load balancing of connections to serverbased vdas. The netscaler vpx software delivers reliable application availability, comprehensive l4l7 load balancing, robust performance optimization. On the left, under traffic management load balancing, click virtual servers. On the barracuda load balancer adc, create services for the types of traffic that are supported by your citrix servers. Citrix xenapp architecture has changed from ima to fma. Citrix xenapp architecture components investigation.
To configure load balancing for xenapp by using the gui. Citrix receiver is client software that is required to access published resources. Load balancer and adc for citrix xenapp and xendesktop. Configure citrix web interface open the citrix web interface management console click xenapp web sites and click create site modify the iis site settings if required click set as the. To deploy citrix xenapp andor xendesktop with high availability, you must cluster your barracuda load balancer adcs. Plb is, in fact, an extension of the cpu management feature that has been built in to xenapppresentation server for some time. The barracuda load balancer adc enables geodispersed deployments, and the builtin application security features allow you to secure the citrix xendesktop deployment against all types of application attacks. Hpe reference architecture for citrix xenapp on hpe synergy. To learn more and to read the entire article at its source, please refer to the following page, load balancing tftp with netscaler 10. Server load balancing in citrix xendesktop 7 youtube. This presentation will describe in detail the architecture of load balancing and allow you to successfully.
Create a service by specifying a name, an ip address, a port, and a protocol type and then click ok. Data collectors help load balance the citrix virtual apps formerly citrix xenapp. For information about calculating the load evaluator index, see ctx202150. Therefore i wanted to use to post to explain the different options we have for load balancing within azure, both for internal services and external facing services. From your description what i believe that you have is one farm only with 2 xenapp servers both set with xml service and session hosting correct me if i am wrong. There are seven load balancing policies to be exact. There are different ways to run the load balancing.
To configure windows server 2008 r2 to load balance citrix web interface 5. Load balancer and adc for citrix xenapp and xendesktop germany. This setting specifies the maximum number of concurrent logons a server can accept. Configuring citrix web interface and load balancing with. Change in citrix virtual apps formerly citrix xenapp. If youre currently using f5, citrix, or a similar system, youre probably used to that. Publishing citrix xendesktop and xenapp with the barracuda. Navigate to configuration traffic management load balancing services and click add. Microsoft azure load balancing services azure blog and. In the case of guest agent, load balancing service queries the guest. Citrix xenapp is a product that extends microsoft remote desktop session host formerly known as terminal services desktop sessions and applications to users. Xendesktop 7 gives us to opportunity to add a servers os. One topic remains unclear for me and i would like a second opinion. Each load balancer sits between client devices and backend servers, receiving and then distributing incoming requests to any available server capable of fulfilling them.
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