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#TFD16 – Tech Field Day 16

20 February 2018
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I’m very proud and honored to be invited again to the next Tech Field Day in Austin (TX). It will be the 16th edition of Tech Field Day (#TFD16), just one year after the 13th, still in Austin (and where I was also invited).

I’m very excited for this event, that remains a must for all techie-people: be a delegate is a unique opportunity to meet interesting people, learn more on products and solutions and usually learn directly by the higher (technical) level of each company… All without biased discussion and always with a high technical level … Contents first in very few words.

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VMware vCenter 6.5U1f patch for Meltdown and Spectre issues

19 February 2018
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VMware has released (on Feb, 15th) a new vCSA version: vCenter Server 6.5 U1f, with build number 7801515.

This release patches the vCSA operating system (Photon OS) mainly against two vulnerabilities: bounds-check bypass (Spectre-1, CVE-2017-5753) and rogue data cache load issues (Meltdown, CVE-2017-5754). As of now, there is still no patch for branch target injection vulnerability (Spectre-2, CVE-2017-5715).

VMware has also updated the security advisory dealing with all of its virtual appliances updates for Spectre and Meltdown vulnerabilities, VMSA-2018-0007. But note that VMSA-2018-0004.2 has not been updated yet, and it still report that the suggested version for vCenter 6.5 is still 6.5U1e!

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New Meltdown and Spectre variants

19 February 2018
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We are still far from a solution for the Meltdown and Spectre, considering the delay of the microcode releases and the complexity of the possible Spectre fixes…

And now, some security researchers from NVIDIA and Princeton have discovered new variants of the Meltdown and Spectre flaws that may be more difficult to be fixed (but also to be exploited) than the originals.

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Runecast Analyzer v1.7 with vSAN analysis

16 February 2018
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Runecast announces the new release version 1.7 of its proactive issue detection software, Runecast Analyzer. After the Meltdown and Spectre detection added in the previous releases, this latest version brings other interesting news.

Runecast Analyzer is powered by the largest database of automated VMware KB articles which feed its internal archive of known issues. The interesting aspect of this tool is that it’s very easy and fast to be deployed and that it can work fully in offline mode!

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Analyze performance impact of Spectre and Meltdown patches

15 February 2018
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The mitigations for Meltdown and Spectre issues have involved a combination of different type of fixes: some software based, such as Microsoft and Linux versions of the “kernel page table isolation” protection, but also fome hardware based, like the Intel’s microcode updates (part that is still missing in most cases).

Both type of patches can cause performance overheads and have some kind of impact on your environment. But how can you estimate it (before apply the patches) and how can you measure it (when the patches have been applied)?

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Issue when adding a Veeam proxy

14 February 2018
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When you add a Veeam proxy to the Veeam Backup infrastructure, in some cases you can have an error message like this: “Failed to create persistent connection to ADMIN$”

And the proxy is not added to the infrastructure.

There can be different reason, but the most common case occour when you have proxyes that are “workgroup only” and when you are using dedicated local accounts, and not the “Administrator” one. And you have Windows Server 2012 or later.

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Holistic full stack monitoring with Uila

13 February 2018
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Uila has a very interesting product that provide a holistic full stack monitoring and visualization of an entire infrastructure from the hardware to the applications and services, end-to-end.

Uila provides a non-disruptive and scalable application auto-discovery solution for over 3000 applications and protocols with Deep Packet Inspection (DPI) technology and automatically correlates any application performance issues with underlying network, storage and compute performance to get to root-cause.

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