For years, I have dismissed Virtual Machine Hardware version as unimportant. In fact, in this very blog, I may have advocated for leaving VM Hardware Version set at 8, to maintain full compatibility with both the vSphere C# Client and the vSphere Web Client.
Unfortunately, thanks to Spectre and Meltdown, things have changed. Updating your VM Hardware Version also updates the VM BIOS, and that’s an important part in the remediation of Speculative Execution Vulnerabilities, specifically: CVE-2017-5715 ‘Spectre Variant 2’. Continue reading
Invalid snapshot configurations happen. Mostly, they occur because of problems with storage arrays during snapshot creation/consolidation, but they can also occur if certain process become interrupted (like replication) mid-snapshot.
The more heavily you rely on snapshots, the more likely it is you will come across a problem with snapshots. Specifically if you use a product like Veeam, which leverages a VMware Snapshot to quiesce data, you may see an Invalid Snapshot Configuration from time to time.The more often you protect your data, the more often you create and remove snapshots. This is NOT to sat that there is a problem with Veeam; Veeam is awesome, however it is subject to events on the underlying infrastructure and possible on VPN/MPLS links between sites Continue reading
Many people are under the incorrect belief that it is hardware-level firmware updates from companies like HPE and Dell that will protect our Virtual Machines from Speculative Execution Vulnerabilities. This is NOT TRUE.
- As far as your VMs are concerned, the VM BIOS and Hypervisor are the hardware!