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Top25 Virtualization Blogs

Browsing Posts published in October, 2017

VMware vExpert Cloud 2017

31 October 2017
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Reading Time: 3 minutes After the VMware vExpert vSAN 2017 and VMware vExpert NSX 2017 awards, this year a new vExpert category has been added: the VMware vExpert Cloud. Like for other technologies vertical, these vExperts has demonstrated significant contributions to the community and a willingness to share their expertise with others. Contributing is not always blogging or Twitter as there are many public speakers, book authors, scriptwriters, VMUG leaders, VMTN community moderators and internal champions among this group.

vCertification ,

ESXi 6.5 host fails with PSOD

23 October 2017
7 comments

Reading Time: 3 minutes Seems that there are still some issues with vSphere 6.5, with a possible PSOD (Purple Screen Of the Death) after upgrade to 6.5U1 on ESXi hosts using 10 Gbps NICs. The VMware KB 2151749 describe this issue and explains that this occurs because Netqueue commit phase abruptly stop due to the failure of hardware activation of a Rx queue. As a result, Internal data-structure of the Netqueue layer’s could go out of sync with the device and cause PSOD.

vSphere none

VeeamON Tour Virtual 2017

22 October 2017
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Reading Time: < 1 minute VeeamON is the big event from Veeam (actually only in the US) and VeeamON Tour is usually a smallest (one day) event around the world. But, like happened in the past year, on December 5 there will be also a VeeamON Tour Virtual event: coming right to your desktop, an event on the future of Availability.

Events none

Cisco CCNA lab guide

20 October 2017
1 comment

Reading Time: < 1 minute Neil Anderson, from Flackbox, has build an amazing free Cisco CCNA Lab Guide recently which can be used to pass the CCNA exam or as a configuration reference for Cisco routers and switches. There’s a few free guides online but they all cover old out of date exam topics and aren’t great quality, but this is guide really complete (350+ pages), up to date, with good quality and simple, which people can use completely for free.

vNetworking, vProducts none

Mastering VMware vSphere 6.5 book

19 October 2017
4 comments

Reading Time: 2 minutes One of the reasons why my blog is starving in the last months is that I’ve started a huge personal project that consumes all my spare free time. This project is a book on VMware vSphere 6.5, really ambitious considering that will be a “Mastering” book, but the title and part of the content were not negotiable.

General, vSphere

Flash issue with vSphere Web Client

18 October 2017
6 comments

Reading Time: 2 minutes The latest Adobe Flash update (note that the update has been included also in Microsoft Update) with v 27.0.0.170 make the vSphere Web Client no more usable with all browsers. With Chrome and Firefox, you will recognize that the Flash plugin hangs, in Internet Explorer, you will have a simple generic error and the browser that will close.

VMware none

Not healthy disks in a vSAN 6.6 disk group

16 October 2017
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Reading Time: 2 minutes After replacing the SAS card on some ESXi 6.5 nodes, I’ve got a strange issue in the vSAN cluster. The vSAN was healthy and apparently working, but when I try to build new VMs wasn’t working at all, saying that there weren’t enough resources. But there was a lot of free reported space. The reason was that single node, the capacity disks where simply “not Healthy”, but reported as mounted.

Uncategorized

Blogtober Tech Edition

12 October 2017
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Reading Time: < 1 minute There is an interesting #Blogtober campaign for the tech / virtualization community started on October 2017. You can have more information on http://www.blogtober.net web site or on this post (actually the web site just point to this post).

Events none

Continuous install on ESXi hosts after vSphere Replication deployment

11 October 2017
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Reading Time: 3 minutes If you are going to using vSphere Replication you will notice, after the deployment of the two virtual appliances a continuous (also each minute) logging of installation activities on all the ESXi hosts in the protected cluster. This is quite annoying but also is going to fill up your log both in the ESXi hosts and in the vCenter database (are all tasks visible in the the vCenter console).

VMware none

Enable proxy in VMware vCSA

10 October 2017
2 comments

Reading Time: 2 minutes One of the big advantages of the virtual appliance version of VMware vCenter (vCSA) is the ability to update both the OS components and the VMware parts with a simple menu. Just use the administrative UI available at https://vCSA_IP:5480 and login with user root and the password that you have chosen during the deployment.

vSphere

Issues when VMware vSAN 6.6 is in multicast mode

9 October 2017
3 comments

Reading Time: 3 minutes VMware vSAN 6.6 works only in unicast mode, if you have upgrade all the disks to the last v5 format. But recently I’ve got a new cluster, build totally from scratch with latest version, that has switched to multicast mode, with the result of all hosts partitioned at network level.

Uncategorized none

Download the legacy vSphere Client

4 October 2017
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Reading Time: 2 minutes The legacy C# vSphere Client for Windows is no more available for vSphere 6.5 (see Bye bye vSphere Client, finally), put for previous vSphere version you can still use it. You can but maybe you shouldn’t, just because new features are in the vSphere Web Client and also because it’s not always friendly in error handling and message.

VMware none

LLDP issues with DVS and Dell switches

3 October 2017
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Reading Time: 3 minutes The Link Layer Discovery Protocol (LLDP) is a vendor-neutral link layer protocol used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, usually with Ethernet standard. Compared to Cisco Discovery Protocol (CDP) it’s not proprietary and can be used from different vendors. VMware vSphere adds LLDP capability in the Distribuited Virtual Switches (DVS). CDP it’s also available both in DVS, but also in standard virtual switches (by default it’s enabled in listen mode).

DellEMC, VMware, vSphere none
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