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Month: November 2016

Another free eBook from VMware!

Another free eBook from VMware!

After Network Virtualization for Dummies, VMware published today another book from the series – Cloud Management for Dummies. It can be downloaded at this VMware site. The one thing you need  to do is to sign in and download. Download this book to learn how to meet these cloud-driven challenges, including: Lifecycle management – from deployment to maintenance Hybrid landscape – manage local and remote services Quality of service – improve uptime and performance Cost containment – capture and communicate…

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vSphere 6.5 – vCenter Configuration Backup

vSphere 6.5 – vCenter Configuration Backup

In vSphere 6.5 new feature to backup vCenter Server Appliance is available. You can back up it by using build-in file-based solution which backup the core configuration and inventory into a few files. You can also decide which historical data you want to include in such backup. The backup is available from VAMI interface ( at port 5480). The available locations where you can backup the configuration are: FTP and FTPS SCP HTTP and HTTPS As I mentioned before you…

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How to monitor virtual network – story about netflow in vSphere environment.

How to monitor virtual network – story about netflow in vSphere environment.

Before we start talking about NetFlow configuration on VMware vSphere let’s back to basics and review protocol itself. NetFlow was originally developed by Cisco and has become a reasonably standard mechanism to perform network analysis. NetFlow collect network traffic statistics on designated interfaces. Commonly used in the physical world to help gain visibility into traffic and understanding just who is sending what and to where. NetFlow comes in a variety of versions, from v1 to v10. VMware uses the IPFIX…

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vSphere 6.5 – Stronger security with NFS 4.1

vSphere 6.5 – Stronger security with NFS 4.1

NFS 4.1 is been supported since vSphere 6.0 and  but now we are looking into providing stronger security. In vSphere 6.5 we have better security  by providing strong cryptographic algorithms with Kerberos (AES). Also, IPV6 is supported but not with Kerberos and that is another area we are looking into along with supporting integrity checks. Aa we know vSphere 6 NFS client also does not support the more advanced encryption type know is AES. So lets take a look at…

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vSphere 6.5 – New scale limits for paths & LUNs

vSphere 6.5 – New scale limits for paths & LUNs

In vSphere 6.5 VMware  doubled  the  current limits and continuously work on reaching new scale around this . Current limits (before 6.5) pose challenge as for example in some cases our customers have 8 paths to a LUN, in this configuration one can have max of 128 LUNs in a cluster. Also, many of the customers tend to have smaller size LUNs to segregate important data for easy backup and restore. This approach can also exhaust current LUN and Path…

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PowerCLI course

PowerCLI course

I was always keen on getting deeper knowledge about PowerCLI or in other words – start to use it in daily administrative tasks. I decided to do something with it and I think it would be the best way to write my own guide in a form of structured notes and share it here with you. Perhaps someone would find it useful. Therefore in PowerCLI & VMA tab you could find an agenda of this course which will be systematically…

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Network virtualization for Dummies – from VMware

Network virtualization for Dummies – from VMware

VMware shared a free ebook – Network Virtualization for Dummies. It’s the next book from seriers “for Dummies”. The main goal of the series is to describe technical aspects in the most clear and easy way as possible. I haven’t read this one yet but “Virtualization for Dummies” was quite good in my opinion. If you are keen on network virtualization topic, I strongly encourage you to download it here.    

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vSphere 6.5 – vSphere HA Orchestrated Restart

vSphere 6.5 – vSphere HA Orchestrated Restart

VMware announced a new feature in vSphere 6.5 called HA Orchestrated Restart. But wait a minute – it was already available in previous version where you were able to set the restart priority for specific VMs or group of VMs. So what’s going on with this “new feature” ? As always, the devil is in the details 🙂 Let’s start from the old behavior. Using VM overrides in previous version of vSphere, we could set one of three available priorities…

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vSphere 6.5 – Automatic UNMAP

vSphere 6.5 – Automatic UNMAP

In vSphere 6.5 VMware are looking into automating the UNMAP process, where VMFS  would track the deleted blocks and will be able to reclaim deleted space from the backend array in back ground. This background operation should make sure that there is a minimal storage I/O impact due to UNMAP operations. Just to remaind – UNMAP is a VAAI primitive using which we can reclaim dead or stranded space on thinly provisioned VMFS volume. Currently this can be initiated by…

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Quick desktop restoration using VMware Mirage

Quick desktop restoration using VMware Mirage

Backup of physical desktops is one of the primary functions of VMware Mirage. Some people say that true men don’t create a backup 🙂 Althought sometimes it’s a good idea to have some kind of backup. Thanks to VMware Mirage IT Administrators can easily create backup, migrate provision and do a lot of the administrative tasks related to user’s desktops and laptops much faster. VMware Mirage’s main features are: Centralized Virtual Desktops (CVDs) Streamlined Windows Image Management Application Layering Network…

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