VMware Tools is a suite of tools that installs into the guest OS. The suite is offered for Windows, Linux, FreeBSD, and Netware OSs, and the tools are created to provide an additional level of functionality within the virtual machine (VM) environment. 

VMware Tools also enhance the interactions between the host and the guest machines, such as permitting the host system to cleanly power off the guest OS, or allowing files on the guest to be copied, launched, or killed from the host system — among other things. 

While it isn’t absolutely necessary to install and use VMware Tools in your VMware environment, it is highly advisable to do so. The Tools suite comes with a full set of drivers and utilities to boost the performance of the VM’s guest OS and to improve the interaction between the guest and the host. There are several components of this free suite of tools, including: 

VMware Device Drivers

VMware Tools Driver

The VMware Device Drivers tool can replace many of the OS drivers needed to use various devices with the VMs. This tool is cleaner and more efficient than most of the drivers that come with the devices.

Device Drivers is designed to replace a lot of the guest OS drivers to power physical hardware on the network, improving network connectivity and helping to prevent compatibility issues among drives. This tool also assures that mouse operations are smooth, and makes it easier to support the sharing of folders and files (using Workstation products). The Device Drivers tool also delivers a better quality of sound, graphics, and networking performance to the end users. 

VMware Services 

VMware Services is the tool designed to handle the management of communications between the host OS and the guest OS. It runs in the background, and in the Windows OS is referred to as vmtoolsd.exe. In the Mac OS X, it is called vmware-tools-daemon, and in Linux, FreeBSD, and Solaris it is vmtoolsd. 

VMware User Process

VMware User process

The User Process tool makes the mouse pointer operate more smoothly on the VM, and improves the screen resolution for a better user experience.

The User Process tool gives the administrator the power to cut and paste text from the Remote Console or the host OS and back. This tool also improves the performance of the mouse pointer and boosts screen resolution. 

VMware Control Panel 

Control Panel delivers a user-friendly, centralized place inside the guest OS in order to change the various VMware Tools settings. Control Panel is organized into a set of tabs, making it easy and intuitive to make these configurations changes.In addition to VMware Tools, you will also need a good VMware monitoring solution. 

VMware Performance and Optimization

To enable the memory saving ballooning technology, the VMware Tools installation is required. You can find more information about memory ballooning in this interview with Raffaele Giordanelli.

VMware Snapshot – Quiescing: If the flag is 1 or true, and the virtual machine is powered on when the snapshot is taken, VMware Tools is used to quiesce the file system in the virtual machine. Quiescing a file system is a process of bringing the on-disk data of a physical or virtual computer into a state suitable for backups. This process might include such operations as flushing dirty buffers from the operating system’s in-memory cache to disk, or other higher-level application-specific tasks. –< VMware KB article

Sometimes VM Snapshots don’t behave as expected.

That’s where Snapwatcher comes in. Snapwatcher allows you to monitor VMware snapshots across vCenter systems, detect invalid snapshots, and manage hundreds of snapshots smoothly and with ease. In one click, it frees up valuable disk space that is often wasted with broken, invalid, or old snapshots. Sign up for Snapwatcher today

Metrics and Logs

(formerly, Opvizor Performance Analyzer)

VMware vSphere & Cloud

Monitor and Analyze Performance and Log files:
Performance monitoring for your systems and applications with log analysis (tamperproof using immudb) and license compliance (RedHat, Oracle, SAP and more) in one virtual appliance!

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Use Case - Tamper-resistant Clinical Trials


Blockchain PoCs were unsuccessful due to complexity and lack of developers.

Still the goal of data immutability as well as client verification is a crucial. Furthermore, the system needs to be easy to use and operate (allowing backup, maintenance windows aso.).


immudb is running in different datacenters across the globe. All clinical trial information is stored in immudb either as transactions or the pdf documents as a whole.

Having that single source of truth with versioned, timestamped, and cryptographically verifiable records, enables a whole new way of transparency and trust.

Use Case - Finance


Store the source data, the decision and the rule base for financial support from governments timestamped, verifiable.

A very important functionality is the ability to compare the historic decision (based on the past rulebase) with the rulebase at a different date. Fully cryptographic verifiable Time Travel queries are required to be able to achieve that comparison.


While the source data, rulebase and the documented decision are stored in verifiable Blobs in immudb, the transaction is stored using the relational layer of immudb.

That allows the use of immudb’s time travel capabilities to retrieve verified historic data and recalculate with the most recent rulebase.

Use Case - eCommerce and NFT marketplace


No matter if it’s an eCommerce platform or NFT marketplace, the goals are similar:

  • High amount of transactions (potentially millions a second)
  • Ability to read and write multiple records within one transaction
  • prevent overwrite or updates on transactions
  • comply with regulations (PCI, GDPR, …)


immudb is typically scaled out using Hyperscaler (i. e. AWS, Google Cloud, Microsoft Azure) distributed across the Globe. Auditors are also distributed to track the verification proof over time. Additionally, the shop or marketplace applications store immudb cryptographic state information. That high level of integrity and tamper-evidence while maintaining a very high transaction speed is key for companies to chose immudb.

Use Case - IoT Sensor Data


IoT sensor data received by devices collecting environment data needs to be stored locally in a cryptographically verifiable manner until the data is transferred to a central datacenter. The data integrity needs to be verifiable at any given point in time and while in transit.


immudb runs embedded on the IoT device itself and is consistently audited by external probes. The data transfer to audit is minimal and works even with minimum bandwidth and unreliable connections.

Whenever the IoT devices are connected to a high bandwidth, the data transfer happens to a data center (large immudb deployment) and the source and destination date integrity is fully verified.

Use Case - DevOps Evidence


CI/CD and application build logs need to be stored auditable and tamper-evident.
A very high Performance is required as the system should not slow down any build process.
Scalability is key as billions of artifacts are expected within the next years.
Next to a possibility of integrity validation, data needs to be retrievable by pipeline job id or digital asset checksum.


As part of the CI/CD audit functionality, data is stored within immudb using the Key/Value functionality. Key is either the CI/CD job id (i. e. Jenkins or GitLab) or the checksum of the resulting build or container image.

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