Your SSD Drives May Brick After 40,000 Hours
Posted By Tom Fenton
March 30, 2020
On 2020-03-20, HPE issued customer bulletin a00097382en_us (located here) which states: HPE SAS Solid State Drives – Critical Firmware Upgrade Required for Certain HPE SAS Solid State Drive Models to Prevent Drive Failure at 40,000 Hours of Operation. The HPE bulletin further states: After the SSD failure occurs, neither the SSD nor the data can […]
VMware Horizon and ControlUp: GPU
Posted By Tom Fenton
March 26, 2020
Introduction Virtual desktops are becoming more common in firms within industries like engineering, medical, and entertainment, where users view and process visual images or video – and need the power of a graphics processing unit (GPU) to accomplish their daily tasks. Fortunately, modern virtual desktop infrastructures (VDI), such as VMware Horizon, support virtual desktops with […]
Effects of Limited Bandwidth on End User Sessions
Posted By Dennis Geerlings
February 25, 2020
The ControlUp Support Team tends to see actual use cases — not theoretical best practices, but how the product is being used in production environments. During a recent customer visit, the customer asked me what might be going on with VDI users in a delivery group. One set of VDI users reported lag on their […]
Using iPerf to Baseline Network Performance
Posted By Tom Fenton
February 20, 2020
I recently worked with Dennis Geerlings, a Global Customer Services Engineer at ControlUp, about an issue that one of his customers was having. Some of the customer’s end users were noticing a considerable amount of lag when they were working on their VDI clients. After some investigation we found that the users were using hardware […]
Using Branch Mapping to Troubleshoot Networking issues
Posted By Tom Fenton
February 19, 2020
Often, issues with virtual desktops are tied to the physical location where the thin client resides. There can be a myriad of reasons for this. But, fortunately, using ControlUp’s Branch Mapping feature you can map IP addresses to the names of geographical locations, buildings, or organizational branches to make troubleshooting these issues easier. Branch Mapping […]
Script Action: NetScaler/Citrix ADC
Posted By Esther Barthel
January 06, 2020
NOTE: This post comes from Esther Barthel, MSc, solutions architect, owner of cognition IT, and a consultant to ControlUp. On December 17, 2019, Citrix released a security bulletin detailing a vulnerability in Citrix Application Delivery Controller (ADC), formerly known as NetScaler ADC, and Citrix Gateway, formerly known as NetScaler Gateway, that could lead to arbitrary […]
Making a Citrix ADC High Availability Health Checks Easier
Posted By Esther Barthel
September 23, 2019
NOTE: This post comes from Esther Barthel, MSc, solutions architect, owner of cognition IT, and a consultant to ControlUp. A couple of weeks ago, one of my clients experienced some unexpected behavior that seemed to be linked to the High Availability (HA) configuration of their Citrix ADCs. In reaction the client asked me to run […]
VDI Know How 101
Posted By Theresa Miller
May 17, 2018
It can be confusing to consider the many options available for application and workstation virtualization.  VDI is yet another common virtualization technology option that would be important to take a close look at if your enterprise has any need for desktop virtualization.  If you were an early adopter of VDI then you may have quickly […]