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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.

Help me understand...

I have two hosts.  I know...it's small, but I'm learning, so I created a DS.  My two hosts each have one 1gig NIC and one 10gig NIC.  My hosts are identical.  Same server, same 1gig/10gig NIC.  All four of those NICs are in my uplinks.  I've created my VM Traffic Port Group and I've created my Management Port Group.  

In my mind, I want the Management Post Group linked to the 1gig NICs and I want my VM Traffic Port Group linked to my 10gig NICs.  That's so the comms between the hosts and VMs is on the 10gig backbone.

Look at my DS pic I've attached and let me know what I'm doing wrong, or tell me I'm thinking wrong, OR, if it's true, tell me I got it right.  :)

I appreciate the input.  

Thanks
DS.png
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How do i attach a blank dvd (iso file) to a vsphere vm

I have a windows 10 vm and I want to make a repair disk. I tried to create a 0-byte file named file1.iso and using my vsphere 6.0 client, attached it to my Windows 10 VM. On the W10 "create a repair disk" panel I get the error:

The disk in the drive is not blank. You must erase the disk before you can use it.
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I know that the general rule is never to perform an in-place upgrade, but I'm at a loss as to the best way to accomplish my objective.

Currently have a 2012r2 hyper-v host with 4 2012r2 guests.  I need to add a couple more guests, win2019.  Current setup is on direct storage.  Since "technically" 2019 is not supported on hyper-v 2012r2 what is the best way to proceed?  Can I upgrade the existing host to hyper-v 2016/2019?  If so, what is the best way to get there?  I do NOT have a cluster setup so I don't think that path works.
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So, I have Veeam on a physical server and it has two repositories for storing backups and replicas.

Over at site 2, I have a second physical server with 36TB of physical storage attached and I'm adding that server, and its storage to my backup repositories.  The thing is, the second disk on the second server isn't showing when I try to add it.  Only the C: drive shows, as you can see in the pic.  The server referenced in the pic has a 36TB local disk on it and it's not populating in Veeam.  Anyone seen this?

the server shown has additional local storage that isn't showing
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Hi,


In Azure  the page file is by default in D: drive and set to: System managed files

Is it better to leave it as is or can we just set to manual?

I saw an application pool has used all memories and the system just assign 2 GB of page file off 15 GB. Why it does assign more???

I just need your opinion and experience.
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I need to move one vm from old vcenter to newer vcenter.
Both vcenter in different network.
How may i bring this old vm to present in the new vcenter
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So, I have two sites connected by a gigabit pipe.  I have Veeam at site 1 and it has the vcenter server loaded up and I can see all hosts/VMs at both sites.  I'm replicating, backing up and backup copying like a mad man.  It's working great.

At site 2, I added enough compute and storage to run the entire corporation at site 2 is needed.  

All of my VMs live at site 1, except for a DC and file server at site 2.

I'm using Veeam at site 1 to replicate and backup the two site 2 VMs to hosts at site 2.

What I WANT to do, is replicate everything at site 1 over to site 2 so that is site one goes dead, I can run the company from site 2.

Now, on to my question:

Do I put a Veeam server at site 2 and replicate machines across the pipe to site 2 hosts, or so I add a second replication job at site 1 and send replicas to hosts at site 2?

I don't want two replication jobs running on one VM, if I can help it.

So, what is best practice for Veeam and two sites when you need site 1 to replicate to site 2 for DR?
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Hi,


What is the impact if the Vcenter (vSphere 6.7) certificate is expired?
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Hi,

I have VCenter with vSphere 6.7 and I need to renew his certificate. How can I do that? Is there GUI way?

Thanks
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I was reviewing the network setup UCS->Nexus9k->Storage Array. The 10G interfaces on the storage array are setup for 9000 byte MTUs and the Nexus 9k is setup for jumbo frame. But the UCS NIC and VMWare VMNICs are setup for 1500byte frames. This is iSCSI traffic. It all seems to work fine.

I was wondering in this instance what is preventing the storage array from sending 9k frames to UCS/Vmware? Or is it likely sending 9k frames in response to the initiators and the UCS is fragmenting them down to 1500 byte frames? Is there some kind of negotiation between end systems in scenario?
1
I have 30 ACMService timeout errors on a 2012 R2 VM server today. I looked in services, and see no reference to the ACMService service. How do I see, cycle or look for specific logs on this service? (or is "service" a misnomer??
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Hi All.  

This particular VM we are running is reporting HD Controller failures.   Since it is a VM which has many VM's running off the box is there a way to determine whether or not the failure is the physical hard disk on the server or something else reporting?  Here is the error.

The driver detected a controller error on \Device\Harddisk0\DR0.
The driver detected a controller error on \Device\Harddisk2\DR1
The driver detected a controller error on \Device\Harddisk2\DR2.


+ System

  - Provider

   [ Name]  disk
 
  - EventID 11

   [ Qualifiers]  49156
 
   Level 2
 
   Task 0
 
   Keywords 0x80000000000000
 
  - TimeCreated

   [ SystemTime]  2020-03-30T15:00:03.147781900Z
 
   EventRecordID 2202132
 
   Channel System
 
   Computer TMMSage.tmmontante.local
 
   Security
 

- EventData

   \Device\Harddisk0\DR0
   1004800001000000000000000B0004C0030100000000000000000000000000000000000000000000BA20000000000000FFFFFFFF060000005800072200000000E42000000201200000000000F000000000000000000000000000000000000000000000000000000080A78E1600E0FFFF0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000


--------------------------------------------------------------------------------

Binary data:


In Words

0000: 00800410 00000001 00000000 C004000B
0010: 00000103 00000000 00000000 00000000
0020: 00000000 00000000 000020BA 00000000
0030: FFFFFFFF …
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Hello,

We have VMware ESXi 6.7 Update 2 installed in HP Gen 9 server, that contains a virtual machine, with enough hardware resources (CPU/RAM...). But this virtual machine reboots spontaneously/unexpectedly and does not have any operating system error. Which means it might be a VMware problem regarding that virtual machine.
I precize, we do not have any HA or FT configured. Just a vCenter that manages couple of standalone hosts (no cluster).

In the operating system of that VM which is Windows Server 2016, i just find error messages (6008: unexpected restarts).
Which means the it might be a hypervisor problem.. for that, i tried to migrate that vm to another Host, but always same problem, unexpected restarts...

When i tried to see virtual machine logs, i did not find anything valuable that might help (vmware.log). And same thing in vmkernel.log or vmkwarning.log.. (vm name is VM01)
I wonder where i should look too. any idea please?
Thank you in advance,
vmware.log
vmkwarning.log
vmkernel.log
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This is regarding exchange 2016 standard cu13 on a Server 2016 standard VM.   We lost power and I shutdown the exchange server manually.  Next morning I turned it on and one of 4 mailbox DBs corrupted and failed to mount.  I called MS Support and an exchange tech tried to repair the original DB but gave up after a failed hard repair.  We switched to the veeam incremental backup from a few hours before the power went down but it was in dirty shutdown and he could not get it to go either.  He was going to research and discuss with tech lead and then get back to me later that night which did not happen.  I assume it's fallout from the covid lock down in his country.  I have veeam backup and replication 9.5.4 and run full backups on Saturday and incrementals between.  I do not have weekend veeam support so am wondering if anyone has experience restoring a corrupt DB from backup.  I have tried copying the backed up DB folder to another drive  on the exchange server and using eseutil to prepare it for moving to the folder holding the corrupt db.  I've tried directly restoring to the DB folder and overwriting the corrupt.  I've tried with several incremental and full backups.  In each case the restored edb file is in dirty shutdown and will not soft or hard repair.  The 'eseutil /mh' result will show missing logs but in almost every case the logs are there and /ml runs successfully.   However, a soft repair fails with a '-501 log file corrupt' error.  I assume I'm doing something …
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Windows 10 VM not booting after installing free Avast Antivirus. I suspect there is some driver issue. How can I remove the driver or uninstall Avast form the recovery console? Or is there another way around this?
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If you have any responsibilities for managing the ICT budget for your organisations, can you share any examples of lessons learned on areas you may have identified or any honest 'mistakes made' where your company was perhaps wasting money.

We have a risk/audit team who do a lot of good focus on cyber security, data protection etc, but some other issues have come to light in recent years where money was being wasted due to poor asset management/monitoring processes (i.e. smartphones that were not even being used by the person given them), which got me thinking what other common mistakes could be being made which may be worth delving further into as part of their cycle of reviews.

Not overly sure what category to add this to so gone with a broad area as I know a lot of participants in these areas often seem to have senior titles in their profiles so may be involved in this type of area or report directly to others who do.
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Hi,

How can we migrate VMware servers from VCenter to MS Azure?

Which tools can be used?
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Good day to All
I have some virtual machines with Windows 10 Pro installed on them, what is the best method for licensing them - I am getting conflicting information.  I want to use them as full PCs for one person each to RDP into, I cannot use VDI as I have bespoke software which is not compatible with VDI.
I am being pointed in the direction of CSP subscriptions which appear to be either user or device licenses - I feel that those are for VDI installations
The alternative offering is an upgrade to Windows 10 Enterprise but I don't need Enterprise so again I think that is for VDI installations.
So , in my case can I just buy Volume or Retail windows 10 Pro licenses and crack on.
Microsoft don't make these things easy, it should be sooo simple.
Thanks
E.
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Expert out there, I need your help on improving disk latency on a VM.
We have a VM with eight disks that are configured with LSI logic scsi controller with 10 cores vcpu. The backend storage is Dell EMC VNX.
The software vendor ran a simulation and found that the server has disk latency. I was asked to tune the server.
He mentioned that the latency is at 64 KrW and 64KrR and it has to be below 10Ms vs 20Ms.
What would you advise me to do in this case?
We have VMware 6.7 and Dell R730 Esxi hosts in the cluster.
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I am building an Oracle Virtual Box VM on a laptop.  I have set the storage on the hard drive to 32 GB fixed.  I run through the install to the reboot.  When it comes back up it wants to reinstall CentOS 8 again and in the Installation Destination window the disc is still 32 GB but only about 1 MB is available.  What am I doing wrong? I follow the book and videos to a  tee but no beans.  And why do I need to reinstall CentOS?  I have set up VMs in VMWare just fine.  I am new to Virtual Box.  Can you help?  thanks.
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I currently have a server running server 2016 with two guest VM's also running - a 2016 DC and a Member server running exchange 2016.

I now have a new server running Server 2019 and wanted to move my Exchange server to the new host.

I did the following:

1. Powered off Exchange
2. Copied both the System VHD and the Database VHD to the new host
3. Created a new Virtual machine using the same MAC address it had previously and made the both drives had the same letter.
4. Booted the VM up and it did say it was configuring new hardware.

When I logged in it all seemed ok, albeit a tad slow but the Ethernet card was not present. There was an unidentified item in Device manager which are 3 attempts it did installed the network card but failed to show in network connections.

My questions are - should you be able to just move a VM from 2016 to 2019? Did I miss any steps? I was quite careful in the process to move over a VM.

Any thoughts or tips that might help will be much appreciated

Thank you.
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I have a cloud subscription in Azure. I can create a standard VM without trouble in the portal site, but I need to create it as a dev/test VM. There is not an option to select the VM as a dev/test VM in the portal.  I was able to create an estimate which gave me all the SKU's and Resource ID's to create what I want.  How would I go about creating that exact VM?
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Hello all.

Working with windows 2016 Core servers VMs.

To run the following on separate servers of course.

IIS and SQL server 2019.

How much memory would be good for these vm cores?

I have 3 2016 file servers that run wonderfully with only 1gb of ram.

So how much for the others?
Waynr
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I have a legacy Win98 box that I need to virtualize.  I've got it successfully P2V'd into VMware Workstation.  The problem is that it's a single hard drive with a 2gb FAT16 partition and a 14GB FAT32 partition.  I've been able to successfully convert the FAT16 to FAT32, however, I'm pulling my hair out trying to resize the partitions.  I need to resize the 2gb partition to 4gb.

I tried using a partition tool in a Win7 VM to resize.  When I boot the Win98 box I just get a blinking cursor.  How do I successfully resize these partitions?  Or, I think I successfully resize the partitions, but messed up my ability to boot.  I tried booting the 98 install CD and getting to a command prompt.   I ran FDISK /mbr.  It didn't do anything....
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Windows Server Standard versus Windows Data Center edition.

I was reading the differences:
<https://docs.microsoft.com/en-us/windows-server/get-started-19/editions-comparison-19>

Can be used as virtualization guest      Yes; 2 virtual machines, plus one Hyper-V host per license      Yes; unlimited virtual machines, plus one Hyper-V host per license

Why would someone order the datacenter edition when setting up a machine with windows?

I'm thinking perhaps they want to become a service provider, and host servers? Maybe game servers?

How would this function with ONE database? Would that have anything to do with load balancing a database? I don't think so. But thought I would ask.

<https://azure.microsoft.com/en-us/overview/what-is-a-virtual-machine/>
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Virtualization

18K

Solutions

11K

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.