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How Hyper-V 2016 compares to vSphere 6.5
Scaling and maximums
| System | Resource | Microsoft Hyper-V 2016 |
VMware vSphere 6.5 | |||
| Free Hypervisor | Essential Plus | Enterprise Plus | ||||
| Host | Logical Processors | 512 | 576 | 576 | 576 | |
| Physical Memory | 24 TB | 4 TB? | 4 TB? | 12 TB | ||
| Virtual CPUs per Host | 2048 | 4096 | 4096 | 4096 | ||
| VM per Host | 1024 | 1024 | 1024 | 1024 | ||
| Nested Hypervisor | Yes (only some OSes) | Yes | Yes | Yes | ||
| VM | Virtual CPUs per VM | 240 for Generation2 64 for Generation1 |
8 | 128? | 128 | |
| Memory per VM | 12 TB for Generation2 1 TB for Generation1 |
6128 GB | 6128 GB | 6128 GB | ||
| Maximum Virtual Disk | 64 TB for VHDX format 2040 GB for VHD format |
62 TB | 62 TB | 62 TB | ||
| Number of disks | 256 (SCSI) | 60 (SCSI) | 60 (SCSI) | 60 (SCSI) | ||
| Cluster | Maximum Nodes | 64 | N/A | 64 | 64 | |
| Maximum VMs | 8000 | N/A | 8000 | 8000 | ||
vSphere 6.0 -Difference between vSphere 5.0, 5.1, 5.5 and vSphere 6.0
Differences between vSphere versions
Source: http://www.vmwarearena.com/vsphere-6-0-difference-between-vsphere-5-0-5-1-5-5-and-vsphere-6-0/
PowerShell script which collects virtual machine information from a VMM server 2012 R2
This PowerShell script collects virtual machine information from a VMM server 2012 r2 and generates an HTML
report, displaying detailed configuration information for all virtual machines managed by the server: configuration
summary, network configuration and storage configuration.
Office 365 port requirements
TCP 443 - 0365 Portal, Outlook, OWA, Sharepoint Online, Lync client, ADFS Federation / Proxy
TCP 80/443 - Azure AD Syn Tool, Mail Migration Tool, Exchange
TCP 25 - Mail Routing
TCP 587 - SMTP Relay
TCP 143/993 - IMAP Simple Migration Tool
TCP 995 - POP3(S)
TCP 5223 - Lync Mobile client push notifications
PSOM/TLS 443 - Lync Online Outbound Data Sharing
STUN/TCP 443 - Lync Online Outbound audio, video, app sharing
STUN/UDP 3478 - Lync Online Outbound audio and video sessions
UDP 20000-45000 - Lync to Phone Outbound
UDP 50000-59000 - Lync Outbound audio and video sessions
Script to remove all PST references (files) from a profile
With the following vbs script we achive to remove pst references form the outlook profile. To use, copy the code below and paste it into Notepad. Save the file with a vbs extension.
On Error Resume NextDim objOutlook 'As Outlook.ApplicationDim Stores 'As Outlook.StoresDim objFolder 'As Outlook.FolderDim i 'As IntegerSet objOutlook = CreateObject("Outlook.Application")Set Stores = objOutlook.Session.Stores For i = Stores.Count to 0 step -1If Stores(i).ExchangeStoreType = 3 Then Set objFolder = Stores(i).GetRootFolder objOutlook.Session.RemoveStore objFolder ElseEnd IfNext
source: http://www.slipstick.com/exchange/script-remove-pst-file-profile/
Office 365 Plans
| Office 365 service family | Plans |
| Business maximum 300 users |
Office 365 essentials |
| Enterprise unlimited number of users |
Office 365 entrprise E1 |
| Education unlimited number of users |
Office 365 education E1 |
| Government unlimited number of users |
Office 365 government E1 |
source: https://technet.microsoft.com/en-us/office/dn788955.aspx
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How create and configure deduplication in windows server 2012
Introduction
One of the great features of windows 2012 is volume deduplication. It used for file servers mostly and it is not permitted for c:\ drive.
Install deduplication from Server Manager
The procedure is as follows: From Server manager, add Roles and Features Wizard, under Server Roles, select File and Storage Services (Picture 1)
Microsoft Hyper-V 2012 vs. VMware vSphere 5.1
Microsoft Hyper-V 2012 vs. VMware vSphere 5.1
Picture 1: Microsoft Hyper-V 2012 vs. VMware vSphere 5.1
Install the SNMP service on Centos server
Install the SNMP service on Centos
Install the SNMP service
#yum install net-snmp
then
#mv /etc/snmp/snmpd.conf /etc/snmp/snmpd.conf.org
#vim /etc/snmp/snmpd.conf
and insert
rocommunity public 192.168.x.x
then replace 192.168.x.x with the IP address of the server that you want to allow SNMP lookups from:
Start the service
#/etc/init.d/snmpd start
and configure to start automatically
#chkconfig snmpd on
Run the command in order to open firewall
#system-config-firewall-tui
in shell console and open UDP port 161 to your SNMP lookup server.
Finally test it as follows:
#snmpwalk -v 2c -c public 192.168.x.x
Convert full installation windows 2012 to core installation
Introduction
We can switch between in server core installation and full installation in windows server 2012 just remove or install two features in server manager.
