Browsing Posts in vSphere

This is an article realized for StarWind blog and focused on the pro and cons of an upgrade to vSphere 6.7. See also the original post. Now that VMware vSphere 6.7 has been announced and it’s also available in General Availability (GA), some people may ask if it makes sense upgrade to this version (or when will make sense upgrade to 6.7). Is a GA release ready for a production environment? Or is it mature and stable enough?

Seeams that there is an issue in CPU hot-add on Windows Server 2016 running in VMware vSphere 6.5, but it’s something hard to reproduce this issues on a different systems. Because on most systems it works correctly, but, at least in a case, the CPU hot add does not work as expected.

VMware has just released the new vSphere 6.7 only a few weeks ago, but now it’s the turn to update the previous version: vSphere 6.5 Update 2 is now available, with some interesting news. New builds will be 8307201 for vCenter and 8294253 for ESXi. The official vSphere documentation is already updated to vSphere 6.5U2 version. All PDFs could be downloaded from this link. The interesting aspect is that vSphere 6.5U2 includes some backported features from vSphere 6.7!

The new VMware vSphere 6.7, recently available in GA, increase all configuration maximums to new limits (compared to the v6.5 and previous versions). Maybe we can say with no limit, or at least, to be serious, with really huge numbers compared to the actual needs and the existing compunting power. Those new limits are both for scalability aspect, but also to fit with possible performance requirements, considering that a bigger number of business critical applications are going in the virtual environment.

VMware has just released the new version of vSphere 6.7 that includes ESXi 6.7 and vCenter Server 6.7, and, of course, it’s the foundation for vSAN 6.7! There are several news, improvements and new features. Most are well described in the vSphere 7.6 launch page.

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 […]

This is an article realized for StarWind blog and focused on the pro and cons of an upgrade to vSphere 6.5. See also the original post. VMware vSphere 6.5 is the latest version of the enterprise server virtual platform from VMware, but the new beta it’s already there for testers. Actually the next version it’s (in the beta) and you can register at https://secure.vmware.com/43478_vSphere_Beta_Reg.

One month ago, the Mastering VMware vSphere 6.5 book has been published and we already have some interesting feedback. Considering that it’s the first book experience (not only for me but also for the other co-authors), and that neither of us it’s a native English speaker, we are really interested in more feedback (positive or negative) as possible, in order to improve, in the case of a new edition or a new book.

There are some cases where the VMware Tools installation, if you run it from the vSphere platform, remain pending and you cannot end this task anymore. Also if VMware Tools are up and running properly. It’s something boring because may block you in several other tasks.

Seems that the vSphere Web Client has some bugs, also with the latest vSphere 6.5 version. It should be the main web client (see a list of possible GUI clients in vSphere 6.5), but sometimes does not work as expected (without considering possible Flash bugs). If you are using vSphere vApp (a feature that requires a DRS enabled cluster), you may have some issues when you need to remove a VM outside from a vApp.

VMware vSphere, during its history and the different versions, has got several types of GUI clients. One of the most used (not the first, but the standard one since Virtual Infrastructure 3.0) was the vSphere Client for Windows. But on May 2016 VMware has announced that the Legacy C# Client (aka thick client, desktop client, or vSphere Client) will no longer be available with the vSphere 6.5 release, replaced by web-based clients. With VMware vSphere 6.5 there are mainly two different “Web Client”:  the vSphere Web Client (based on Flash and introduced in vSphere 5.0) […]

Meltdown and Spectre are critical vulnerabilities existing in several modern CPU: these hardware bugs allow programs to steal data which is currently processed on the computer. Meltdown and Spectre can affect personal computers, mobile devices, server and several cloud services. Actually, the only way to minimize those security risks is to patch your operating systems, but also the hypervisor level and the hardware level (if vendors provide a new firmware).

One month ago, VMware has released a new branch of the VMware Tools, the version VMware Tools 10.2.0 some a new interesting feature: the offline VIB bundle. With this package, you can simply upgrade the embedded VMware Tools components in your VMware ESXi hosts in order to continue to update your VMware Tools as usual!

Now that the PSOD on vSphere 6.5 and 10 Gbps NICs issue is finally solved seems that vSphere 6.5 critical bugs are closed, but it’s not totally true. During an upgrade from a vSphere 6.0, I’ve found a really strange iSCSI storage issues where all the VMs on the iSCSI datastore were so slow to become un-usable. First I was thinking about drivers or firmware, in the hosts and in the NIC (1 Gbps) or the firmware on the storage.

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