vmware-tools-are-outdated-or-not-installed-part-1

The most common issue with a vSphere virtual machine is that the VMware Tools are either not installed or are out of date. The VMware Tools are a suite of utilities intended to enhance the performance of the virtual machine’s guest operating system and improve the ability to manage the virtual machine.

With each new version of vSphere, VMware also updates VMware Tools and, with some version of vSphere, administrators must proactively update Tools in each virtual machine in order to experience the benefits of the new features provided by VMware. As shown in Figure 1, "VMware Tools is out of date on this virtual machine" is a message that is very common in VMware environments in which VMware Tools is not consistently updated.

Figure 1, VMware Tools outdated

Impact

Although the guest operating system can run without them, many VMware features are not available until you install VMware Tools. For example, if you do not have VMware Tools installed in your virtual machine, you cannot interact with the Guest OS to perform a graceful / clean shutdown or restart. This means you can only use the VM power options to perform a hard power off or power on of the virtual machine from the toolbar.

VMware Tools also improve the virtual machine’s storage I/O, graphics performance, and allows the virtual machine to synchronize its clock with that of the host. Virtual machine performance is boosted with VMware Tools by enabling the use of paravirtualized devices such as the VMXNET3 network and paravirtualized SCSI devices. Paravirtualized devices require specialized device drivers, which are provided by VMware Tools.

Finally, reclamation of unused memory from each virtual machine won’t be possible without the VMware Tools being installed, as memory ballooning and transparent page sharing won’t be available. Memory ballooning is a technique by which a vSphere host, when it’s running low on physical RAM, can reclaim RAM from guest virtual machines that may not be using the full complement of RAM currently assigned. Transparent page sharing is a method that allows virtual machines to share memory pages through what is essentially a memory deduplication process. The result of not being able to use such memory management techniques is that your virtual-machine-to-host consolidation ratio will be lower and your return on investment from the virtual infrastructure will be negatively impacted.

If you have the VMware Tools installed but they are out of date, you will lose some functionality depending on how out of date the VMware tools are.

Author

Thanks David Davis

Continue to Part 2

CNIL
Metrics and Logs

(formerly, Opvizor Performance Analyzer)

VMware vSphere & Cloud
PERFORMANCE MONITORING, LOG ANALYSIS, LICENSE COMPLIANCE!

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!

Subscribe to Our Newsletter

Get the latest product updates, company news, and special offers delivered right to your inbox.

Subscribe to our newsletter

Use Case - Tamper-resistant Clinical Trials

Goal:

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.).

Implementation:

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

Goal:

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.

Implementation:

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

Goal:

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, …)


Implementation:

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

Goal:

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.

Implementation:

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

Goal:

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.

Implementation:

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.

White Paper — Registration

We will also send you the research paper
via email.

CodeNotary — Webinar

White Paper — Registration

Please let us know where we can send the whitepaper on CodeNotary Trusted Software Supply Chain. 

Become a partner

Start Your Trial

Please enter contact information to receive an email with the virtual appliance download instructions.

Start Free Trial

Please enter contact information to receive an email with the free trial details.