Articles In Infrastructure

By Timothy Karl, Posted in Infrastructure

Email-based discovery in the Citrix Workspace app allows users to setup Workspace using only their email address. The benefit of this feature is that a user does not have to enter or remember any server URLs to access their Citrix resources. All they need to do is enter their email address and the Workspace App will auto-configure itself. To configure this feature in traditional NetScaler Gateway and StoreFront deployments, an administrator would need to configure the following for each email domain: A... read more.

• September 29, 2023

By Carlo Costanzo, Posted in Infrastructure, Virtualization

Content Libraries For those entrenched in virtualization, vSphere's Content Libraries are no stranger. Despite their glaring advantages, the adoption rate has been sluggishly low, primarily because of traditionalist tendencies. Yes, you guessed it right, I'm talking about those dedicated LUNs still holding ISOs like it's 2005. I get it, it's comfortable to stick with what you know, but hear me out: Content Libraries in vSphere aren't just a fancier vessel for your ISOs. They are the bedrock for a more robu... read more.

• September 20, 2023

By Carlo Costanzo, Posted in Infrastructure

In my opinion, home labs are awesome. One of the best ways for you to learn software is to actually run it in your house on a home lab and have the ability to test out solutions, features, upgrades, and break fixes without having to worry about impacting your user base at work. The major drawback in running a home lab is cost. Often times, the gear is expensive (even when purchased used) and the cost to power the lab can also be excessive. Sure, you can spin things up in the cloud, but for me, I find witho... read more.

• August 25, 2023

By Carlo Costanzo, Posted in Infrastructure

Sometimes with VMware solutions, you need to install a custom vSphere Installation Bundle (VIB). There are VIBs for Nvidia GPUs, storage VIBs, and many others. In this post, let’s talk about how you can use Lifecycle Manager to install VIBs, rather than messing around with the Command Line as most of the instructions would have you do. What is a VIB? A VIB is a package containing software that you can install on a VMware ESXi host. It is typically a ZIP file containing the kernel modules, scripts, a... read more.

• August 16, 2023

By Carlo Costanzo, Posted in Infrastructure, Virtualization

Do you have any Raw Disk Mappings (RDMs) in your environment? If so, you might want to learn more about Clustered VMDKs. Clustered VMDKs vs RDMs Before Clustered VMDKs, clients would have to use RDMs to present a shared disk between VMs. RDMs were basically LUNs passed directly through the ESXi host to the Virtual Machines. The cluster software then handled writes and locking directly with the SAN. You could abstract the interactions a bit more by using Virtual Raw Disk Mappings (vRDMs), but the gist of t... read more.

• July 27, 2023

By Carlo Costanzo, Posted in Infrastructure, Support

While working on some older DL360’s, I ran into the infamous Purple Screen of Death. Similar to Microsoft’s Blue Screen of Death, this occurs when there is a kernel panic in Linux variants that result in a system halt. This typically is due to a driver issue, hardware issue, or in my case, a recent patch. When I patched the system, the ESXi host restarted as normal, but got stuck on a task appropriately called VMK Shutdown: World_DestroyAllUsersWorlds. The task hung for a few minutes and the... read more.

• July 07, 2023

By Carlo Costanzo, Posted in Infrastructure

In an article posted last month, Tim Husar demonstrated how to reset an ILO password on a VMware ESXi host without any downtime. Today, I want to show you a different variation of that process, tailored for an older ILO card operating with an earlier version of ESXi. Since we are using tools that are native on the ESXi HPE custom build, depending on which version you are running, you might need to run different tools. In our case, we had an ILO 5 running on a 6.7 ESXi host. We were running through our upgr... read more.

• June 21, 2023

By Timothy Karl, Posted in Infrastructure

Citrix continues to innovate their Citrix Cloud platform with new enhancements and capabilities. Here are some highlights of some of the recent new enhancements and capabilities that are now available to the public: Citrix Cloud Now Supports Google Cloud Identity Google Cloud Identity is now supported as an identity provider for subscribers. This provides a unified single sign-on experience to access Citrix Workspace and Google resources. Please note this only works for end-user subscribers, it does not s... read more.

• June 21, 2023

By Carlo Costanzo, Posted in Infrastructure, Support

The Scene Recently, we were working with a client who was experiencing packet loss on some network adapters on their systems. The ESXi host was set up in a pretty standard configuration of a vSwitch with two physical NICs connected to it. We’d done a lot of troubleshooting up to this point and wanted to start correlating Virtual Machines to pNICs. The NIC teaming on the vSwitch was set up as a default active/active scenario and was using the route by origin method. This means that when a VM powers u... read more.

• June 02, 2023

By Tim Husar, Posted in Infrastructure, Support

Recently, a client became locked out of the HPE ILO Administrative account on six VMware ESXi hosts. The direct route to fixing this involves downtime, and solutions that could be done while the hosts were online couldn’t be found. We were able to review the HPE REST API documentation and resolve the issue by following the steps below. The HPE ESXi must have been installed or updated with the VMware Custom HPE Software. Enable SSH on the target HPE host. Log into the host with the root account or... read more.

• May 04, 2023