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11 Gennaio 2018 / Ultimo aggiornamento : 11 Gennaio 2018 admin IT

VCP6-NV Study Notes – Section 1 Understand VMware NSX Technology and Architecture–Part 2

Objective 1.3: Differentiate Physical and Virtual Network Technologies Differentiate logical and physical topologies, components and services Servers are interconnected by a physical network that already meets the basic requirements for network virtualization –> provide IP connectivity between the physical servers. Because the vSwitch is the first hop in the data path for every packet that […]

10 Gennaio 2018 / Ultimo aggiornamento : 23 Novembre 2019 admin IT

VCP6-NV Study Notes – Section 1 Understand VMware NSX Technology and Architecture–Part 1

Objective 1.1: Compare and Contrast the Benefits of a VMware NSX Implementation Determine challenges with physical network implementations Network micro-segmentation wraps security controls around much smaller groups of resources (often down to a small group of virtualized resources or individual virtual machines). Micro-segmentation has been understood to be a best practice approach from a security […]

8 Gennaio 2018 / Ultimo aggiornamento : 13 Febbraio 2018 admin Cloud

VCP6-NV Study Notes – Intro and Exam Topics

This is the beginning of my study notes, written in preparation of VPC6-NV exam. The requirements to attend this exam are the followings: If you’re new candidate you must attend (and pass) vSphere 6.x Foundation Exam (VCP6-DCV) You hold a Cisco certification such as CCNA Data Center, CCNA Routing & Switching, CCNP Data Center, CCNP […]

26 Agosto 2017 / Ultimo aggiornamento : 26 Agosto 2017 admin IT

Mentoring in the high school

Few months ago, I had my first experience teaching in an high school… and I could say that the destiny is really kidding me: I’m giving a lesson where I was a student! Thanks to a Technical Institute in Cremona, Italy (IIS Torriani http://www.iistorriani.gov.it/pvw/app/CRIT0004/pvw_sito.php) , and Vittorio Cirioni (lab and computer science teacher), I started […]

9 Aprile 2017 / Ultimo aggiornamento : 9 Aprile 2017 admin communities

be VMware Certified

Only five years ago I started my journey into IT certification and the first certificate of my life was VMware Certified Professional. From that moment my life changed becoming more and more involved in design and technical decision. My company position started growing and now I’m the head of virtualization and cloud specialist at LineaCOM, […]

3 Gennaio 2017 / Ultimo aggiornamento : 3 Gennaio 2017 admin Study Notes

VCP 6 Study Note – vCenter Overview

vCenter is primary management tool for vSphere admins. It provides: point of control for all components in vDC management functionalities and services rights, permission and roles management storage and resource requirements management unification view of all resources provided by every ESXi host Components in vCenter Server PSC (Platform Services Controller) Components and feartures: SSO Licensing […]

2 Gennaio 2017 / Ultimo aggiornamento : 2 Gennaio 2017 admin Study Notes

VCP 6 Study Note – VM version and features

Source: KB 2051652 https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2051652   Version 11 (>= Esxi 6.0) Version 10 (>= Esxi 5.5) Version 9 (>= ESXi 5.1) Max memory (GB) 4080 1011  1011 Max logical processors 128 64  64 max cores (vCPU) per socket 128 64  64 Max SCSI adapted 4 4  4 Supported SCSI adapter Bus logic LSI logic LSI-logic SAS […]

2 Gennaio 2017 / Ultimo aggiornamento : 2 Gennaio 2017 admin Study Notes

VCP 6 Study Note – Logs purposes and locations

This is not only a study, this could be a rapid guide to identify logs locations and their purposes. Sources: KB 1021806 https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1021806   ESXi Source: https://pubs.vmware.com/vsphere-60/index.jsp#com.vmware.vsphere.security.doc/GUID-F35D7005-58EB-48AC-99D5-B9942EB2A8EF.html   VMkernel Location: /var/log/vmkernel.log Purpose: ESXi and VM activities VMKernel warnings Location: /var/log/vmkwarning.log Purpose: VM activities VMkernel summary Location:/var/log/vmksummary.log Purpose: uptime and statistics about ESXi Host Agent Location: […]

30 Dicembre 2016 / Ultimo aggiornamento : 30 Dicembre 2016 admin Study Notes

VCP 6 Study Note – Security Certificate

vSphere components use SSL to communicate securely with each other and with ESXi and is also used by vCenter services such as the vSphere Web Client for initial authentication to vCenter Single Sign-On. In vSphere >= 6.0, the VMware Certificate Authority (VMCA) provisions each ESXi host and each vCenter Server service with a certificate that […]

28 Dicembre 2016 / Ultimo aggiornamento : 28 Dicembre 2016 admin Study Notes

VCP 6 Study Note – Numa system with ESXi

Sources: wikipedia (numa available in many languages) https://pubs.vmware.com/vsphere-60/index.jsp#com.vmware.vsphere.resmgmt.doc/GUID-7E0C6311-5B27-408E-8F51-E4F1FC997283.html ESXi supports memory access optimization for Intel and AMD Opteron processors in server architectures that support NUMA (non-uniform memory access). NUMA architecture developed in multiprocessor system where time to access to a single data by a processor depending on the processor position from memory. In NUMA a […]

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About Lino Telera

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Cloud Specialist and Software Architect, VMUG leader, VCP-4, VCP-5,VCP5-Cloud,VCP5-DT, VCP-6, vExpert 2015-2020
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