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ESXi Networking – Disable IPv6?

4 August 2017
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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)

vDesign, VMware, vNetworking

Bye bye 3rd party virtual switches in ESXi

10 April 2017
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Reading Time: 2 minutes VMware has announced the discontinuation of its third party virtual switch (vSwitch) program, and plans to deprecate the VMware vSphere APIs used by third party switches in the release following vSphere 6.5 Update 1. Subsequent vSphere versions will have the third party vSwitch APIs completely removed and third party vSwitches will no longer work. In the past years, VMware has recommended the Nexus 1000V users to move into the VMware vSphere Distributed Switch to avoid future problems, now it’s clear the product version where you can go.

VMware

“Jumbo” disk in VMware ESXi

13 February 2017
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Reading Time: 3 minutes In VMware vSphere there was an hystorical limit of VMDK disks around 2 TB (2 TB – 512 B), but the real “usable” was also less due to the need to make a snapshots on it (if you want use native backup solutions) and depending on the block size (for more informations see Veeam KB 1091). Starting with vSphere 5.5 was finally possibile have bigger disks up to 62 TB (that I will call just “jumbo” disks), but again with several limits describe in VMware KB 2058287 (Support for virtual machine disks larger than 2 TB […]

VMware

NMI purple diagnostic screen on HP ESXi hosts

6 January 2017
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Reading Time: < 1 minute Purple screen of the death are the “blue” screen of VMware ESXi when something really wrong happen, usually at hardware level. They are not so common, unless you stay in the Hardware Compatibility List (HCL) and have reliable hardware. One strange issue that I’ve got recently was on HP server with ESXi 6.0 with this kind of purple screen:

VMware, vProducts

Microsoft Hyper-V 2016 vs. VMware vSphere 6.5

23 November 2016
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Reading Time: 6 minutes Now that both Microsoft and VMware have officially announced the new released of their virtualization products it’s possible make an homogenous comparison between Hyper-V 2016 and vSphere 6.5 (like I’ve done some years ago with the Hyper-V 2012R2 vs. vSphere 5.5 article). Comparing two different product is not so easy, also if released really closed one each other. You have found some homogenous aspects to make the comparison, at least at technical level (but as written, it’s not so much important now). For numbers could be really easy, but numbers are not enough: for example […]

Microsoft, VMware, vProducts ,

VMware vSphere 6.5 management UI

20 October 2016
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Reading Time: 2 minutes With the new vSphere 6.5 the legacy Windows vSphere Client is finally dead! Was supposed also during the beta of vSphere 6.0, but in the RC a new C# client has appear to avoid this kind of transition. But also to avoid the new limits dictated by the vSphere Web Client, like the huge depency from Acrobat Flash! With version 6.5 there are some interesting changes in the clients for VMware vSphere:

VMware ,

ESXi on HP Proliant G7 or lower

Reading Time: 4 minutes If you are running an HP customized image of ESXi on some old Proliant server, you may have some issues as describe in KB 2094618 (The hp-ams process does not stop when restarting ESXi management agents on HP ProLiant G5, G6 and G7-series servers) When restarting ESXi management agents on HP ProLiant G5, G6 and G7-series servers running versions of HP Agentless Management Service (AMS) prior to 10.1.0 , you experience these symptoms:   In the Recent Tasks pane of vCenter Server, you see multiple tasks in the In Progress state Virtual machines that still […]

VMware, vProducts
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