Archive
Documenting #Citrix #XenApp 6.5 with MS PowerShell V2 – @CarlWebster via @anders_keis
Good work Carl and the rest of you guys! Will try it out ASAP! 🙂
The original article on Documenting a Citrix XenApp 6.5 Farm with Microsoft PowerShell was released on October 7, 2011. The original script has been downloaded over 15,000 times. I decided it was time to update the script to have the output match what was shown in AppCenter. With a lot of help (and patience) from Exchange MVP and PowerShell guru Michael B. Smith, I updated the original script from over 1800 lines to over 2900 lines of PowerShell to thoroughly document a XenApp 6.5 farm. This article will focus on the changes to the script.
I would like to thank the following people for helping to test the script.
- @BYODre
- Andrew Morgan
- Bart Jacobs
- Brian Hecker
- Derick
- Jarian Gibson
- J. L. Straat
- Jennifer Auiler
- Kees Baggerman
- Knut Gunnar Neggen
- Magnus Hjorleifsson
- Mark Fermin
- Thomas Poppelgaard
- And 25 others
Before we get started, I want you to know that I am NOT a programmer. I am NOT a software developer and I am NOT a real PowerShell coder. I am simply a hack who brute forces his way through all this PowerShell stuff until I either figure it out myself or have to use a lifeline. i.e. Michael B. Smith, Jeff Wouter or worse, I have to read a book!
The prerequisites to follow along with this article are:
- A server, physical or virtual, running Microsoft Windows Server 2008 R2 with or without SP1
- Citrix XenApp 6.5 installed with or without HRP01
Note: A few testers reported that neither this script nor AppCenter displayed the hotfixes installed on the data collectors. Citrix has a public hotfix that should resolve that specific issue. http://support.citrix.com/article/CTX132713
The nice thing about XenApp 6.5 compared to both XenApp 5 and XenApp 6 is that all the basic Citrix PowerShell stuff is installed when you install XenApp 6.5. But we still need the XenApp 6.5 PowerShell..
Continue reading here!
//Richard
How to leverage the new multiple datastore options of VDI-in-a-Box 5.2 – #VDIinaBox
Another good Citrix blog post, thx Richard Khan!
Last year with version 5.1, VDI-in-a-Box introduced the ability to take advantage of two separate data stores, allowing VDI-in-a-Box to better leverage the direct attached storage of servers. When using the Hyper-V or ESX hypervisors, VDI-in-a-Box allows you to define a second datastore to separate the storage of golden images, and linked clones. Now with version 5.2 of VDI-in-a-Box we have introduced the option for a third datastore. In addition to the datastore options for golden images and desktops, there is now an option to store the personal vDisks associated with personal desktops on a separate datastore. Administrators now have the ability to store images, desktops, and personal disks separately or together on the datastore of their choosing. Best of all, this option is available on all supported hypervisors.
Upon initial configuration, the vdiManager uses a single datastore. This primary datastore contains all of the golden images, desktop instances, and the vDisks associated with Personal Desktops. Enabling the multiple datastore feature in vdiManager’s advanced properties makes it possible to separate these three types of data onto their own data stores.
The flexibility of multiple datastores can be leveraged by storing pooled desktops on an SSD datastore for improved IOPS performance. Since pooled desktops…
Continue reading here!
//Richard
#Citrix VDI-in-a-Box 5.2, now supports CloudGateway etc. – @VDIinaBox, @CitrixCG
Ok, now VDI-in-a-Box is becoming more and more “complete”! This release delivers some of the features many have wanted for a while! For instance the support of the latest hypervisors as well as CloudGateway!
Read more below taken from the Citrix blog post:
Version V5.2 is now ready for prime time. The focus of this release was to support the latest hypervisors and Citrix components. Actually we did a lot more because we added a few features that our users have been clamoring for.
Support for the latest hypervisors:
As always we need to stay current and so version 5.2 supports vSphere 5.1, XenServer 6.1 and Microsoft Hyper-V Server 2012. The latter should increase desktop density quite a bit. We’d love to hear your experiences along those lines. Please post on the forum what sort of density increases you are experiencing.
Unified access to VDI-in-a-Box desktops and your applications and data:
Version 5.2 now supports Citrix’s Cloud Gateway and allows you to access VDI-in-a-Box through it. Cloud Gateway provides a unified application and data store allowing you to access Windows, web, SaaS and Mobile applications seamlessly and so we felt it important that VDI-in-a-Box work with this application and data aggregation service.
Real-time collaboration with Microsoft Lync:
In addition, we support Microsoft Lync via the Citrix HDX RealTime Optimization Pack for Microsoft Lync. Now users can seamlessly participate in audio-video or audio-only calls to and from other HDX RealtTime users and other standards-based video desktop and conference room systems. This is especially good for call centers and the like who want wide ranging soft phone functionality with their virtual desktops.
Highly available Personal Desktops with PVD:
Many had asked that we provide some form of high availability for Personal (PVD) desktops. We provide this by allowing you to place PVD desktops on shared storage. Here’s how it works. You specify a third datastore which resides on shared storage and VDI-in-a-Box will honor this request and store all Personal desktops using PVD on it.
Turn old desktops into locked down thin clients:
Kids will be kids and so many school lab administrators have asked that we provide a way to lock down the devices used in their labs. Now, you can download the Desktop Lock from the VDI-in-a-Box download page on the Citrix web site. It will allow you to lock down the physical device and essentially turn your old desktops and workstations into a thin client that connects directly to VDI-in-a-Box and keeps the kids from doing any mischief.
Fully automated software update with our Touchless DTagent:
And since we’re always looking for ways to make things simpler, with V5.2, we now have a fully automated way for you to upgrade the VDI-in-a-Box software. We had two issues in the past. First, you had to manually install the VDI-in-a-Box desktop agent on a golden image (that is then used to stamp out multiple desktop instances). Second, when you upgraded the VDI-in-a-Box software, you had to manually update the agent on each existing golden image. In Version 5.1, we automatically install the agent on all new images. With V5.2, we now provide you a list of existing golden images whose agents need to be updated and once you click yes, we walk you through a wizard to automatically upgrade the agent and test the golden image. For more details on this, see the blog by David Liu: http://blogs.citrix.com/2013/01/22/viab-5-2-makes-updating-desktop-agents-easier/.
Continue reading here!
//Richard
@WorkWeb & @WorkMail release candidates available – #Citrix, #CloudGateway
Finally! The apps are available at MyCitrix! Stay tuned for test results etc…
//Richard
PVS support in XenServer 6.1 – via @_POPPELGAARD – #XenServer, #Citrix, #PVS
Good blog post from Thomas Poppelgaard!
And this is something that many have waited for, either they upgraded and ran into the issues and had to revert back to 6.0.2… but now it’s fixed! 🙂
Citrix have released Hotfix XS61E009 & XS61E010 for XenServer 6.1 and now you are able to have Citrix Provisioning Services with XS 6.1 and use VVS.
I have been waiting for this for a while.
Issues Resolved In This Hotfix XS61E009
- Virtual Machines (VMs) with out of date XenServer Tools, may not be flagged as “out of date” in XenCenter. This hotfix resolves this issue and enables customers to be notified in XenCenter when new XenServer Tools are available.
- Booting a Citrix Provisioning Services (PVS) target device using a Boot Device Manager (BDM) image can take an extended time to complete. This hotfix resolves this issue.
Issues Resolved In This Hotfix XS61E010
- Customers using XenServer Platinum Edition to license Citrix Provisioning Services (PVS) may find that one PVS license per VM is checked out, rather than one PVS license per XenServer host. This may lead to a shortage of PVS licenses and an inability to provision VMs. Installing this hotfix along with CTX135672 – Hotfix CPVS61016 (Version 6.1.16) – For Citrix Provisioning Services 6.1 – English resolves this issue.
- Attempts to shut down Microsoft Windows Vista and later VMs can cause intermittent blue screen errors, with a "STOP: 0x0000009f..." error message.
- Adding more than eight NICs to Microsoft Windows Vista and later VMs, using the xe CLI can lead to a blue screen error on reboot.
- Copying data to a Microsoft Windows 2003 VM can cause the VMs to hang and lead to a grey screen error.
- When Dynamic Memory Control (DMC) is enabled, attempts to migrate Microsoft Windows XP and later VMs using XenMotion can cause the VMs to hang and lead to blue screen error.
- When the Citrix Xen Guest Agent service is running, Cut and Paste will not work between a XenDesktop virtual desktop and the endpoint device.
- Microsoft Windows XP and later VMs may hang during the boot process and may have to be forced to reboot.
- Attempting to install or upgrade the XenServer Tools on Microsoft Windows Vista and later VMs, which do not have access to a paravirtualized or an emulated network device can cause the installation process to hang.
- Manually installing the Legacy XenServer Tools without changing the device_id to 0001 can result in a "STOP: 0x0000007B..."error when rebooting a Windows VM. After installing this hotfix, customers will not be able to manually install the Legacy XenServer Tools by running xenlegacy.exe…
Continue reading here!
//Richard
VRC white paper about impact of AV on VDI performance – @LoginVSI, @LoginConsultant
New VRC white paper about impact of antivirus on VDI performance
The independent research initiative Project Virtual Reality Check (VRC) released the long awaited ‘Phase V’ white paper which provides new insights in the impact and best practices of various antivirus solutions on VDI performance.
By testing and comparing different solutions and configurations Project VRC discovered the best practice to perform a pre-scan of the master image before deployment.
Another key finding is that antivirus off-loading architectures makes a big difference from a storage IO point of view, but not always from a session density point of view.
This Project VRC white paper with all Login VSI test results and best practices can be downloaded for free here:
Download the Project VRC white paper
Read other white papers based on tests with Login VSI
//Richard
#Citrix #NetScaler 10 Build 73.5 released
Citrix has released yet another build….
These are the release notes:
Build 73.5
Replaces build: None
Release date: January 2013
Release notes version: 1.0
Language supported: English (US)
Changes and Fixes
Access Gateway
- Documentation: Starting with this maintenance release, for Access Gateway issues, see http://support.citrix.com/article/CTX133966.
Application Firewall
- Issue ID 0348647: On a NetScaler appliance that has the application firewall configured, if the client sends a web form with data that contains a plus sign (+), that form field triggers a form field consistency violation. This applies for data that the user types into the form, and for data in hidden fields that was generated by a javascript or sent to the user from the server. To work around this issue, ensure that no field contains a plus sign, or temporarily disable blocking for the form field consistency check.
- Issue ID 0354289: On a NetScaler appliance that has the application firewall configured, chunked requests sent by mobile devices to XML services might receive 400-level HTTP responses.
Configuration Utility
- Issue ID 0324797: The NetScaler configuration utility does not display the queue depth value for the configured priority queuing policies. This issue is observed only in a cluster setup.
- Issue ID 0334292: If you navigate to HTTP Compression >..
Continue reading release notes here!
//Richard
OpenStack vs CloudStack: The Latest Score – #CloudStack, #OpenStack
A little update below from Joe Panettieri, good reading! And thanks Oded Nahum for sharing!
And I must agree that I would not count out CloudStack! 😉
OpenStack vs CloudStack: The Latest Score
OpenStack remains the largest and most active open source cloud computing project, Network World notes. But research from Chinese blogger Qingye “John” Jiangsuggests that momentum is building for CloudStack, and interest in Eucalyptus and OpenNebula remains strong. For cloud services providers (CSPs) and consultants, it’s critically important to track each of the four open source cloud platforms. Here’s why.
During Q4 2012, interest in CloudStack grew faster than rival open source cloud platforms. But Jiang’s data shows that:
- OpenStack has the largest total population, followed by Eucalyptus, CloudStack, and OpenNebula;
- OpenStack has the largest active population during the past quarter, followed by CloudStack, Eucalyptus, and OpenNebula;
- OpenStack has the largest active population during the past month, followed by CloudStack, Eucalyptus, and OpenNebula.
Partner Views
Those findings are important to CSPs and consultants that are selecting cloud platforms upon which to build services. OpenStack has been the poster child for open source cloud computing for more than a year now but the bandwagon has some challenges.
Dell, for one, says OpenStack lacks maturity and the hardware giant won’t launch its public cloud (based on OpenStack) for roughly a year. Dell also alleges that Hewlett-Packard’s own public cloud uses a “dramatically forked” version of OpenStack containing proprietary HP technology.
Still, OpenStack consulting opportunities seem to be emerging rapidly. Mirantis, for instance, has emeged as the largest OpenStack systems integrator. The company’s clientele apparently includes Cisco, Dell, GE, Agilent, NASA, HP, AT&T, The Gap, Axcient and Nexenta.
Moreover, Rackspace (NYSE: RAX) continues to see OpenStack progress. CTO John Engates recently offered his perspectives — including some OpenStack milestones — to ZDnet.
Here Comes CloudStack
Meanwhile, it has been awhile since I’ve heard from the CloudStack community. But the CloudStack chatter will likely grow very loud…
Continue reading here!
//Richard
Magic Quadrant for Application Delivery Controllers – #Citrix, #NetScaler, #F5
The application delivery controller has evolved into a key component of the data center architecture, and enterprises should evaluate ADCs based on how they integrate with this architecture and support more-advanced features, such as user and traffic control and monitoring.
Market Definition/Description
Application delivery controllers (ADCs) provide functions that optimize enterprise application environments. The market evolved from the load-balancing systems that were specifically developed to ensure the availability and scalability of websites. Enterprises use ADCs to optimize reliability, end-user performance, data center resource use and security for a variety of enterprise applications.
Magic Quadrant
Source: Gartner (October 2012)
Vendor Strengths and Cautions
A10 Networks
A10 continues to gain market share and brand awareness, especially in Asia, and it is aggressively targeting the North American market. Its product development has placed focus on developing a scalable high-performance platform with a strong feature set but a more limited focus on establishing a data center architectural vision. While strong in its product focus, A10 has demonstrated more limited innovation and still has a more narrow feature support than leading vendors. A10 is a good choice for enterprises seeking a cost-effective…
Continue reading here!
//Richard
Get Ahead with AppDNA – Free Training Available – #Citrix, #AppDNA
Yes, it’s free training for partners!!! Go get it!
Give yourself a head start in 2013 – Register for the free AppDNA course “Simplifying Application Migration with Citrix AppDNA 6.1″
If your organization needs to understand AppDNA software or plans to add the AppDNA product to the sales portfolio, then this 4-hour online course – complete with a virtual lab environment – is for you! Understand the value of AppDNA application migration software, including how to successfully implement it and accelerate customer migrations.
This course is available to partners at no cost through March 31, 2013. Register today and start…
Continue reading here!
//Richard
The IT Melting Pot! 