Browsing Posts tagged ESXi

Reading Time: 5 minutes During the VMworld US 2018, one of the announces was the VMware ESXi for ARM porting, specific for the embedded and edge IoT systems, so not like a general purpose solution for all ARM servers (but an interesting move to increase the possibility for bringing the virtualization on ARM). VMware demonstrated ESXi on 64-bit ARM running on ARM hardware built to common industry standards; note that VMware demonstrates not just virtualization, but also resilient operations and ease of management at the Edge, via FT-protected 64-bit Arm VMs and vMotion in a high-availability DRS cluster…

Reading Time: 4 minutes Four years ago I’ve written a post about the Virtualization with ARM based servers when some vendors announce the possibility to have new server’s series based on the ARM processor. Now seems that there are more than rumors with the announce, during the latest VMworld US 2018, of VMware vSphere for ARM. To be honest, not exactly vSphere, but just ESXi… anyway an interesting announce. But to be clear, limited to embedded and edge IoT systems, so not like a general purpose solution for ARM servers.

Reading Time: 2 minutes 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.

Reading Time: 9 minutes 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.

Reading Time: 3 minutes 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.

Reading Time: 2 minutes Several people are disabling IPv6 support in ESXi for different reasons: because of the minimum privilege principle (if you are not using a service, why you have to keep it enabled?) or simple because they don’t want any IPv6 address in the network. On Linux and Windows systems is become very difficult disable it and Microsoft itself does not recommend disabling IPV6: ” We do not recommend that you disable IPv6 or its components, or some Windows components may not function.” (https://support.microsoft.com/en-us/kb/929852)

Reading Time: 3 minutes As you probably know VMware vSphere 6.0 had a critical issue con its Change Block Tracking (CBT) implementation that can impact all incremental backup with “VMware native” backup program (all agent-less implementation using the VMware VDAP API). This issue occurs due to an issue with CBT in the disklib area, this causes the change tracking information of I/Os that occur during snapshot consolidation to be lost. The main backup payload data is never lost and it is always written to the backend device. However, the corresponding change tracking information entries which occur during the consolidation task are missed. […]

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