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VMware is virtual machine software that provides a virtualized set of hardware (a video adapter, a network adapter, and hard disk adapters) to the guest operating system. VMware virtual machines become highly portable between computers, because every host looks nearly identical to the guest. In practice, a system administrator can pause operations on a virtual machine guest, move or copy that guest to another physical computer, and there resume execution exactly at the point of suspension. VMware's enterprise software hypervisors for servers, VMware ESX and VMware ESXi are bare-metal embedded Hypervisors that run directly on server hardware without requiring an additional underlying operating system.

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Hi All,

I want to reinstall vsphere but noticed that the disk are claimed by a previous vsan installation.

I have been using the cli command

esxcli vsan storage remove --disk
On the last on disk i get the message unable to remove device:can not remove last HDD
Why is this?

Also when i try esxcli vsan storage remove -s mpx.vmhba1:c2:t6:l0 is get the error
not a VSAN disk: mpx.vmhba1:c2:t6:l0

See attahed, how do i wipe all the partitions?
IMAG4222-20170816-110125649.jpg
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hi, i wanted to connect two vmware workstation environment for my vmware NSX lab practice. here each laptop is 16 GB ram. that's why need to connect both laptops. I made 4 subnets from vmware workstation using vmnet1=192.168.1.0/24, vmnet2=192.168.2.0/24, vmnet3=192.168.3.0/24, vmnet4=192.168.4.0/24 and wanted to pass it to both laptops and communicate with each VMs. For this what need to do?

Regards
Milton sarkar
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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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Do VMware converter allow converting physical Window 2013 to virtual image hosted in  VMware server 6.5
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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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Dear Experts, as my understanding, Exchange DAG (for 2 nodes) is the cluster that replicate all data from Mail Server1 to Mail Server2. Is it still correct in SAN storage environment? If so, everything related to mail in SAN storage will be duplicated, am I right? Can we configure so that there is only one version of data exists on it and there are only 2 VM servers for HA-failover?

Many thanks as always!
1
Do the VMs of a specific Resource pool have to have the same configuration of vCPU count and RAM Capacity or can they vary.
For example; would they all have to be 2 vCPU and 8GB RAM or can you mix VMs with 1 vCPU 8 GB RAM with 2 vCPU 16GB RAM and so on?
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Hi, we could not start the vmware physical host after rebooted. It stuck in the black screen. I also noticed that 1 of 2 SAN switch was on orange light. SAN storage is still okay. Can you please suggest?
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In Palo Alto Networks there is a test sec policy command that will let me know whether the traffic from source A to dest B for port C will pass or be denied. i.e. test sec policy 10.10.10.100 to 10.10.20.100:80 ALLOW (or DENY). Is there a similar function within VMWare NSX?
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Since VMware allows use of RDM disks to setup a Windows cluster using VMs, which can be used to install SQL cluster, we decide to go this route.

However, now after installing the Windows cluster, I am finding out that you cannot do snapshot of these VMs due to shared disks. This also means you cannot do Veeam or other backups.
We, of course, can do OS and SQL server backups, but restore from them will be quite time-consuming in a disaster. SAN level backup will require purchase of separate expensive software for just 2 VMs.

To me this is a very serious limitation of using VMs to create a Windows/SQL cluster. If I go with a single VM SQL server, I will still avoid single-point hardware failure due to VMware HA. Only disadvantage will be some down-time when server needs to reboot, for Windows updates, etc. To me this is a very minor inconvenience, compared to not having any VM-level backups.

Am I missing something? Is my conclusion wrong? Please share your experience and/or viewpoints. Thanks.

AKK
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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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When carry out a P2V conversion, is it possible to select which partition to convert ?

I want to exlcude a data partition during VMware conversion, is it possibel ?

Thx
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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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We have a virtual switch with management and virtual LAN in one distributed switch as on the picture with two nic uplinks.  It has been like that for years.  Is there any problem leaving like this?VLAN.png  I would appreciate any suggestions.
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Hi people,

Last night after the successful backup on one of the primary DAG node in my data center, I can see the Active Database has been changed to the passive server in DR-Site all in a sudden ?

Database copies

PROD-DB01\PRODMBX01-VM
Passive Healthy
Copy queue length: 0
Content index state: Healthy
Suspend | Activate | Remove

PROD-DB01\RECOMBX01-VM
Active Mounted
Copy queue length: 0
Content index state: Healthy

So how can I ensure the failback to the production mailbox server is done with no email lost or email flow problem ?

What would be the impact when I click on Activate button during the business hours.

I already executed:

cluster /prop SameSubnetThreshold=20:DWORD
cluster /prop SameSubnetDelay=2000:DWORD
cluster /prop CrossSubnetThreshold=20:DWORD 
cluster /prop CrossSubnetDelay=4000:DWORD
cluster /prop RouteHistoryLength=40:DWORD

Open in new window


Note:
The VMs are running on VMware and the backup software I use is Veeam backup.
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We have vCenter 6.x and wish to upgrade the Version of many VMs to ver 11 from its current version of  8 and 10.  
What is the best way to upgrade them? Would like to get a step by step procedure.
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Hello,

I have a question about vmware  p2v/v2v converter question.  When start the p2v in linux, does it create temp image and do SCP to the destination host?
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What's to prevent someone from spanning ports on say a Cisco switch and capturing NSX SDN traffic and recreating the traffic it discovers? How is the NSX traffic kept secure from the L2/L3 switches it rides on?

Thanks.
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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.
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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

Open in new window

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Hi All,

I have purchased 3x HP DL380 server and have installed vSphere 6.5 on the on-board 32GB SD slots.
The hosst will be using vSan and I'm a bit confused on how to install the vCenter appliance.

As I only have the 32Gb SD storage, I planned to installed the vcenter appliance on vSan but how can I do that it I have no vSan configured.
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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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Where would I look on the physical host of VMWare ESXi if the main host server keeps freezing for logs to give me an idea as to what is causing the freezing?
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I just installed VCenter server in a windows 2008-R2 server that is on a Domain, this Domain is for testing purposes and I create it using VMWare Workstation 10; I created an ESXi 6.0 host and only 2 Windows 2008-R2 servers under, one a domain controller and the other just a file server with VCenter on it.
When I try to login to VCenter using the web client, there’s no inventory or virtual machines and if I click on the administrator section says I don’t have permissions and if I use the old client I can’t even login, it says I don’t have permissions either, any help will be appreciated.
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VMware

32K

Solutions

16K

Contributors

VMware is virtual machine software that provides a virtualized set of hardware (a video adapter, a network adapter, and hard disk adapters) to the guest operating system. VMware virtual machines become highly portable between computers, because every host looks nearly identical to the guest. In practice, a system administrator can pause operations on a virtual machine guest, move or copy that guest to another physical computer, and there resume execution exactly at the point of suspension. VMware's enterprise software hypervisors for servers, VMware ESX and VMware ESXi are bare-metal embedded Hypervisors that run directly on server hardware without requiring an additional underlying operating system.

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