Storefront:
For StoreFront, the credentials are verified directly to a Domain Controller. SF then passes the validation over to the DDC to begin resource enumeration (Step 4). Note: StoreFront validates user’s credentials by default on its own. From Storefront 3, we can enable xml service based authentication, When StoreFront is not in the same domain as XenApp or XenDesktop, and it is not possible to put Active Directory trusts in place.
We have several options to load balance target devices to vDisks. Under Subnet Affinity, they are None, Best Effort and Fixed.
If we want to restrict PVS vDisk streaming to only some subnets, where PVS servers are spread across different subnets, we can use subnet affinity feature.
Subnet Affinity When assigning the server and NIC combination to provide a vDisk to target devices, select from the following subnet settings:
None:
TCP Chimney (sometimes referred to as TCP Offloading)
This feature is designed to take processing of the network such as packet segmentation and reassembly processing tasks, from a computer’s CPU to a network adapter that supports TCP Chimney Offload. This has the effect of reducing the workload on the host CPU and moving it to the NIC, allowing both the Host OS to perform quicker and also speed up the processing of network traffic.
Issue: VDI takes long time to login to the session. When connected to the VDI from RDP, user is able to login but it took long time. So, to test this, we had to increase the VDI login time from Citrix.
Solution: One the VDI, change/create the registry key:
Key: HKLM\SOFTWARE\Citrix\PortICA Value: AutoLogonTimeout Type: DWORD
Specify a decimal time in seconds, in the range 0-3599.
Note: This setting applies only to VMs with desktop (workstation) VDAs; Microsoft controls the logon timeout on machines with server VDAs.
If you go to “Netscaler Gateway” and “Monitoring connections” you will see, “Active user sessions” and “ICA Connections”. The former shows users who have authenticated against the gateway, and the latter is those who have an ICA connection open through the gateway. The lists could be different as a user might have timed out on the gateway but still have an ICA connection open.
Active user connection is the user logged on to Netscaler gateway portal and it is still not logged off.
Dealing with users who accumulate large Citrix profiles can be a persistent challenge for Citrix administrators. When Citrix User Profile Management (UPM) or Workspace Environment Management (WEM) is employed, a UPM_Profile folder is generated. This folder stores all files and folders within the user’s profile. While desktop, downloads, and document redirection to shared network paths can mitigate profile size issues, some challenges remain.
For example, Visual Studio projects or other software tools often default to saving files within the UPM_Profile folder.
Disaster Recovery (DR) refers to the set of policies and procedures in place to ensure the continuity and recovery of mission critical systems in the event of a disruptive event such as a power outage, flood, or cyberattack. In other words, how quickly can you get your computers and systems up and running after a disastrous event?
High Availability (HA) is the concept or goal of ensuring your critical systems are always functioning.
We are almost half way through. Continue on Part 2….
Azure Database Services:
Azure Database Services are fully managed Paas database services. Azure database services are fully managed, freeing up valuable time you’d otherwise spend managing your database so you can focus on new ways to delight your users and unlock opportunities. Enterprise-grade performance with built-in high availability means you can scale quickly and reach global distribution without worrying about costly downtime.
You don’t have to worry about learning azure concepts. Get started here:
Agile: Agility means reacting fast. Cloud agility is the ability to rapidly change an IT infrastructure to adapt to the evolving needs of the business. For example, if your service peaks one month, you can scale to demand and pay a larger bill for the month. If the following month the demand drops, you can reduce the used resources and be charged less.
Iaas, Paas, Saas are the major three major categories of cloud services.
IaaS (Infrastructure as a Service): Using Iaas, you can create your own virtual machines or storage, firewalls, load balancers, IP addresses, network, OS, etc. Iaas is an instant computing infrastructure available for you to use by paying for what you use. It aims to give you complete control over the hardware that runs your application (IT infrastructure servers and virtual machines (VMs), storage, networks, and operating systems).
