Virtualization

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Virtualization is the act of creating a virtual (rather than actual) version of something, including (but not limited to) a virtual computer hardware platform, operating system (OS), storage device, or computer network resources. Virtualization is usually the creation of a system that executes separate from the underlying hardware resources, or the creation of an entire desktop for systems located elsewhere, similar to thin clients.

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hi guys

So I'm just trying to learn more about virtual distributed switches. At work we have a Vmware 5.5 environment. We have 4 Esxi hosts in a cluster and 1x Vmware Vcenter server. When I look at the networking, I can see that on each host a Virtual Standard Switch has been set up, but no Virtual Distributed Switch.

We have 4 x VLAN's.

The question I want to know is under what circumstances would one have used a Virtual Distributed Switch? And what advantages would it have given us?

Thanks for helping
Yashy
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I've just started playing with Azure and am setting up some VMs.

I just changed a VMs dynamic address to a static address from within the VM or from Within Windows as you would normally. However I've found out this isn't what you do.

My VNET is 172.16.10.0/24. How can I assign 172.16.10.5 to a VM and also not have that IP address assigned via the DHCP server as from what I can see I cannot access the DHCP server to tell it not to.

Thanks for any help.
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I have upgraded vSphere PSC server 6.0 to 6.5. Now when I am attempting to upgrade the vCenter 6.0, I get the Warning that extensions VR and SRM may not work with vCenter 6.5.

Should I proceed with upgrade of vCenter and then upgrade VR and SRM to 6.5? If so, in what order? (It is not easy to find a vSphere document on this issue.) Any caveats?
Also, during upgrade to PSC 6.5, a temporary VM is created. Does it go away on its own, or may/should I delete it?
Thanks.

AKK
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hi,

I am facing another issue after connecting all subnets via brigded on vmware workstation. when i deployed VDS switch from vcenter, i can not ping NSX manager (linux based) VM  but i can ping or access VM which are windows based like win svr 2012 or win 7 in same VDS switch. here only tested using one subnet (192.168.1.0/24). plz suggest
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I am looking for away to Group Policy, if possible, to have the Windows 10 lock screen to activate after a set amount of idle time.  
I have tried  this inactive logon GP setting without any success. Group Policy Interactive logon setting.
I don't want to run a  screensaver for users in the virtual environment and don't want the machine to have to go to sleep before going to the lock screen.   Currently our users machines stay unlocked indefinitely while they are away from their computer unless they manually lock their computer before walking away.   Any suggestions?
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Ok - This is how my week is going, need to see if it is OK to uninstall Exchange 2013 from Server.

Created New VM and installed Exchange 2013
Got to the point but did not do it, where I recert the New Exchange and the old Exchange.
I did do a Domain Prep/ ADPrep so the Active Directory Accounts are there for the EX2013
I tried making a backup and it failed. Found out that the Dell Server has bad blocks on the Virtual Volume. Tried swapping Disks, still reports Bad Blocks on the virtual Volume from Dell and still cannot backup.
I then tried to Migrate from 1 ESXi Server to another, failed. (The VM is on local datastore)
Tried to perform VSphere Replication to the other ESXi Server- Sync is currently stuck at 19% for hours.

I am preparing to destroy the Volume created by the Dell RAID set, but before I do that, the 1000 Point Question:
Since Exchange 2013 currently does not have any mailbox's and Exchange07 isnt really talking to the 2013 Server yet, is it safe to uninstall Exchange 2013 at this point and remove from Domain?
If so, then I am going to Destroy the Volume after that, and install a new VM Exchange 2013 Server and use that one.
I am pretty sure that the only thing affected was Active Directory, which has the new Exchange Accounts.
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We have an SBS Server 2008, Server 2012 R2 Physical (DC) and Server 2012 R2 Virtual (DC) in my environment. I recently converted the SBS server to a virtual machine in order to reuse the hardware. The conversion was successful. I then pulled a full backup of the SBS as a VM BUT I forgot to change the Symantec/Veritas Agent to the virtual machine agent. Now 4 days later (and at least 3 reboots) the SBS VM won't boot. It BSoD in Normal, Safe or Last Known Good modes. Thankfully because I am working on decommissioning the SBS most operations are no longer running on it. I attempted to build another SBS 2008 VM and restore the BE backup but it continues to fail because I cannot name the new SBS machine the same Name/Domain combo, and Backup Exec saying the restore resource cannot be found. So, the real question is: do I really need to worry about bringing the SBS server back online, only to decommission it? Exchange is already Office365, I have another physical DC (now running on the original SBS hardware), my certificate infrastructure was rebuilt using another server and I'll get over not having the SharePoint data (wasn't mission critical). Can I move the forest/domain operations masters with it offline and what other steps am I overlooking? Thank you in advance!
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I had created a VM, then a checkpoint, but somehow it was deleted.  It was only a little test VM I had set up, no big deal to lose, so I deleted the VM from Hyper-V Manager.

Now, whenever I try to create a VM--*any* VM--it fails with a popup error:

popup
It doesn't matter what the VM name is, it always claims that the checkpoint %vmname%.vhdx is missing.

Example:

I try to create a VM in directory d:\vm\vms\ called VM-01.  I tell it to place the disk in d:\vm\vms\VM-01\vhd\.  I hit Finish.  It acts like it is creating everything, then I get the popup above.  The directories are created (e.g. d:\vm\vms\VM-01\Virtual MachinesError log reports:

'VM-01' is missing a checkpoint. The disk paths missing used to be located at: D:\vm\vms\VM-01\vhd\VM-01.vhdx. The system cannot find the file specified. (0x80070002) (Virtual Machine ID 24161C9C-6C8F-4015-A258-DC2B8D42C907.)

This will happen regardless of what I name the VM.  

Security on the directory:

SYSTEM:  FULL CONTROL
%MyDomainUserAcct%:  FULL CONTROL
%LocalMachine%\Administrators:  FULL CONTROL

I've removed/reinstalled Hyper-V, done a system restore to before the problem started etc.  Services are running and I am an admin on the machine.  I still choose to run Hyper-V Manager as admin and get the same results.

To make matters more confusing:  If I choose the Quick Create option it works just fine.  If I create a custom machine and place it in the same directory …
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Dear Guys, after installed Vmware 6.5, I tried to connect to the HOST via vSphere client but I got this: server 0.0.0.0?

Can you please explain? And how to fix it?
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A physical server has 25 cores, it is possible to convert it into a virtual guest hosted in a VMware with CPU only have 8 cores ?

Actually the server is a AD users with simple file sharing.

Thx
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I need to present all datastores in a cluster to a VM to support SAN-Transport. For the VM can I create a WWN using Fibre Channel NPIV to may SAN admin can zone the lun's accordingly?
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We had a switch issue yesterday and since then, two hosts are unable to connect to our dell equalogics'. Six hosts are connected over iscsi with Dynamic Discovery with no problem. The other two hosts cannot connect to Dynamic or Static LUN's

I have rebooted the host, attempted rescans of HBA.

any thoughts. i have verified all CHAP credentials and everything are set correctly. the switch was replaced with the same exact switch configuration.
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Hi Experts,

We are using Nakivo backup and replication(installed on a windows vm) and would like to use a remote esxi as a storage option for the repository to house backups,

We have a standalone Esxi host with no production servers running on it at the remote site and would like to use this host as the offsite storage repository.

How would I present/prep this storage for use?

Thank you
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Running SPX 6.5.2 and Oracle Virtual box 5.0.10 and when attempting a virtualboot am getting

There was a problem impersonating the network share user.

The image is out on a NAS ,but will not boot,so anybody get any ideas?
Tried 2 different computers ,a Poweredge Xeon and an Insprion  I7 ,both with virtualization turned on.
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Hi,

I have an HP Server with 4 network cards (NIC teamed), after that installed Hyper-V (Server 2012 R2 with full GUI) and on it runs +/- 10 Hyper-V VMs (all Windows 2008R2 and 2012R2 Servers).

The network cards on the Hyper-V host are all 1Gbps and connected to two stacked 1Gbps Cisco 2960G Switches. I used to get 115MB/s throughput on copying between the Hyper-V Host and other physical Servers on the same Subnet.

Suddenly since mid July the throughput went down to +/- 250 KB/s when copying files from that Hyper-V host to any other physical Servers on the same LAN, we discovered this when I picked up that suddenly backups were not completing anymore and also that then copying data from the VM's on the host to any other servers it runs at the same (+/- 250 KB/s) speed.

Any ideas of what the heck could be causing this massive reduction in network speed?

All seems fine on the Host, I've restarted it, IPv6 is disabled.

Thanks for any ideas where we could start to troubleshoot.

Reinhard
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Hi,
 
I like to upgrade a virtual machine running Windows 2008 R2 to Windows 2012 R2 in Hyper-V environment.

If this is a standalone computer, I would simply insert Windows 2012 R2 DVD and start upgrade process.
In virtual environment, do I simply replace Windows2008R2.iso with Windows2012R2.iso and start the VM?
Is there more to it?

Thanks.
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Hi All,

i need to help configuring a VMware deployment. In the past i have configured host with vCenter using storage array, this is the first time I am using vSan.

These are the steps I have taken.

1.Install vSphere on 3 hosts
2. Install VCSA, created vSan storage as part of the wizard

All hosts and VCSA are reachable.

The issue comes when i try and create a distributed switch. When I move the management traffic (3 hosts) to the distributed switch, vCenter loses all connection to the hosts. This must be because vCenter is on a standard switch and now the management is on a distributed switch? If this is the issue, how do I move vCenter to the distributed switch?

As vCenter needs a VM network do i create a VM port group...
This is really puzzling me. What are the correct steps.

Thanks in advanced.
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This host has been running with no issues for about a year but this has now happened 3 times in the last month.
In vCenter, the host will be grayed out and '(not responding)' displayed next to it. All VMs show disconnected.

I can still remote into the VMs and they are functioning normally.
The first two times this happened I noticed a lot of packet loss when pinging the host but zero packet loss pinging the VMs.

Logged into the host itself and selected to 'Restart Management Network'
Then I was able to reconnect the host in Vcenter and there was no more packet loss.

Second time it disconnected 'Restart Management Network' wasn't enough and I also had to go into Troubleshooting -> Restart Management Agents.
This time, the VM automatically reconnected to vCenter.

This time, even doing both these options isn't enough. There is no packet loss but whenever I try reconnecting on vCenter I get the error:
Cannot contact the specified host...

My guess is something wrong with the ESXI on the host but don't know what else to try.
I did pick the option to 'collect extra troubleshooting information' when restarting the management agents.
Where can I check these logs and what should I be looking for?
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I have converted a physical 32 bit Windows 7 SP1 pc to a virtual machine. I now find the converted machine in my inventory has the Shutdown guest function greyed out. I have tried moving the machine to another host and finally resorted to doing a Power Off followed by a restart but  Shutdown guest is still greyed out. Does anybody know of a way around this?

Thanks for any help offered.
Capture.JPG
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I have just virtualized a physical desktop pc which has a physical disk size of 450GB. The software [including operating system has a footprint of 180GB]. My question: Is there a way of downsizing the disk size post virtualisation?

Thanks for any help offered.
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below script works perfectly. I just wanted to add a else condition.
IF there are no powered off VM then it should return some other msg in body like "Nothing found"  just like a condition statement

$sendMailMessageParams = @{
                Smtpserver = "server"
                To =         "receipnt"
                From =       "sender"
                Subject =    "test"
                BodyAsHtml = $true
}
$head = @"
                <style>
                                BODY { background-color: white; }
                                TABLE { border-width: 1px; border-style: solid; border-color: black; border-collapse: collapse; }
                                TH { border-width: 1px; padding: 5px; border-style: solid; border-color: black; foreground-color: black; background-color: LightBlue}
                                TD { border-width: 1px; padding: 5px; border-style: solid; border-color: black; foreground-color: black; background-color: white}
                </style>
"@

$body = Get-VM |
                Where-Object {$_.PowerState -eq "PoweredOff"} |
                Get-HardDisk |
                Select-Object Parent, CapacityGB |
                ConvertTo-Html -Head $head -body "<H2> Test </H2>"|
                Out-String

Send-MailMessage -Body $body @sendMailMessageParams

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What technologies are common for SAN-to-SAN replication?

Also when you use a backup software to backup to SAN, how would an admin map to the location on the SAN where the backup files reside if they needed to copy a file away for whatever purposes, if they had to? Would you typically have a VM with SAN drives mapped which you could navigate to through windows, or is there other ways in order to access the data?

In terms of backups, if you backup to a local SAN, and then replicate to a DR SAN, would that be sufficient, or would you suggest a 3rd backup perhaps a tape library attached to DR SAN in case somehow both failed?Obviously there is only so much budget.
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Need another pair of eyes to check my DC specs.  Mostly for AD purposes box.  DC, DHCP, DNS.  Maybe Print server as additional.  I will dial another DC on VM.  

Win2016 DC
FT-E5-2603V4, Intel Xeon E5-2603V4 1.7GHz 1U
Including:
* (1) Intel Xeon Processor E5-2603V4 Haswell (6 Cores)
* (1) Supermicro Motherboard X10SRW-F
* On Board Dual 1GB NIC Ports
* On Board VGA
* On Board IPMI 2.0
* 16GB DDR4 2400 RAM ECC/REG Installed, Lifetime
Warranty
* (1) Riser Card w/ 2x PCIe x16 GEN 3.0 FHFL
* (1) Riser Card w/ 1x PCIe x8 GEN 3.0 LPHL
* (1) LSI 9271-4i RAID Controller
* (2) 1TB Enterprise SATA 7200RPM 3.5" HDD
* (4) Hard drive Bays for 3.5" or 2.5" as an option
* (2) PCI-e 16X GEN 3 Slots available
* (2) 500W Hotswap redundant PSU
* (1) Microsoft Windows Server 2016 Standard Operating System
64-bit English (16 Core), OEM
* 3 Years Full Warranty w/ advance ship replacement
1
Hi,
 
 I have almost 3 years-old DELL T320 Poweredge Server running ESXi V5.5. I have a few VMs - SBS2011, Windows 2008 R2 servers.
 Right now, my clock (correct time) shows 12Noon EST 8/7/2017 whereas SBS2011 & W2008 R2 servers shows 5:43AM 8/7/2017 and my VMWare(ESXi V55) is showing :
~ # esxcli system time get
2017-08-07T09:44:26Z
~ # esxcli hardware clock get
2017-08-07T09:44:51Z

On Saturday (8/5/2017), I changed time on SBS2011 to correct time. But it currently shows 5:43AM 8/7/2017. I corrected time on SBS2011 more than once, but whenever I logged back to SBS2011, it has been always way off.

Today is the first time I checked the time on VMWare box and it is off too.

Do you think I should replace clock battery on T320 Server and reboot so that virtual machines would receive new correct time from ESXi server?
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Hello,  I am looking at replacing a couple of workstations with thin clients and was told to run Virtual Client Services.
Does anyone have any good overviews of the setup for this.  Is it server based or what is required for setup?
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Virtualization

16K

Solutions

10K

Contributors

Virtualization is the act of creating a virtual (rather than actual) version of something, including (but not limited to) a virtual computer hardware platform, operating system (OS), storage device, or computer network resources. Virtualization is usually the creation of a system that executes separate from the underlying hardware resources, or the creation of an entire desktop for systems located elsewhere, similar to thin clients.