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Part 1: Architect and Create Cloud Services Organizations for Skyline

In November of 2018, VMware Skyline became available as a VMware Cloud Service. The primary reason we enabled Skyline as a Cloud Services was to provide customer’s with greater control of their Skyline proactive findings and recommendations. This is part one of a multi-part blog series that will help you architect and create your Cloud

The post Part 1: Architect and Create Cloud Services Organizations for Skyline appeared first on VMware Support Insider.

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Hyper-V 2012, cannot get DHCP addresses on VM guests using external switch 2

I can’t seem to get dhcp addresses on the guests using a 2nd external switch I made.  Each external VM switch is on a different router with DHCP.  Both switches get an IP addresses from routers, and I can ping both from core console.  Both
switches are configured the same (external/share with host/no vlan). Guests work fine if I put them on switch 1. However when I use 2 the guests will not get an IP.  The working switch is a Broadcom NetExtreme 57 connecting to a Uverse gateway/modem.
The non-working switch is an Intel pro/1000 MT Desktop connectling to a low-end Belkin router.  

Here is what I tried…

assigned a static IP…still no connection or packet flow

tested DHCP on router on other devices…works, range is 192.168.2.4 thru 2.98

tried unchecking share with host option in hyper-v manager…no difference

tried using vlans option in manager…no difference

tried uninstalling and reinstalling the guest network adapter…nothing (remember it will work on switch 1 anyway)

This setup works in Server 2012 with Hyper-V installed.  However now I am using Hyper-V core 2012.  

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text is too small to see

I’m running Windows 10 pro on a Dell laptop with a UHD display.

I just created an Ubuntu Virtual Machine using Hyper-V Quick Create.

No matter how I size the VM, the window inside the VM is too tiny to read.  

How does one make it bigger?wr

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Appropriate type of checkpoint for Malware testing

Suppose that the virtual machine (using Hyper-V) has been infected with Malware, running the Windows 10 OS. In order to restore the virtual machine to the "clean state" before it has been infected, is using a standard checkpoint appropriate, or
is using a production checkpoint appropriate? Is there no difference?

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Is Hyper V secure against malicious software?

Is Hyper V secure against malware? To be more specific, there is a possibility that I may encounter malicious programs (malware testing or otherwise) on my virtual machine, and something that I do not want is for the malware to transmit itself from the virtual
machine to the host machine. Is Hyper V secure against this? 

If not, to which degree is the host machine protected? Would Hyper-V be "safer" or "more secure" than Virtualbox or VMware in any way?

I intend to run Windows 10 on the virtual machine, if this information is relevant.

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Install Hyper-V role fails on Windows 2016 during server restart

..with error: "we couldn’t complete the features" during the windows boot  and then mentions "Hyper-V" service superficially, stops the service and then removes the service. Can boot back into the server after 2 restarts, but hyper-V
not available. 

I’ve followed a number of guides. Here’s a few bits that are relevant:

Hardware: Dell T20 with updated BIOS + Virtualisation enabled in bios. 

OS: Windows Server 2016 Standard

"CoreInfo -v" produces:
Intel(R) Xeon(R) CPU E3-1225 v3 @ 3.20GHz
Intel64 Family 6 Model 60 Stepping 3, GenuineIntel
Microcode signature: 00000025
HYPERVISOR      -       Hypervisor is present
VMX             *       Supports Intel hardware-assisted virtualization
EPT             *       Supports Intel extended page tables (SLAT)

SysInfo:

Hyper-V - VM Monitor Mode Extensions Yes

Hyper-V - Second Level Address Translation Extensions
Yes
Hyper-V - Virtualization Enabled in Firmware
Yes
Hyper-V - Data Execution Protection Yes

Only one Network adapter (hardware card) listed in Device manager - updated driver. 

I did install Docker prior to Hyper-V - not sure if that will effect things. 

When WS2016 restarts, the Server Manager shows an error "request to add [features] failed" and advised I peruse the event viewer - however, I have absolutely no idea where to look for that!]

Hope someone can help, because baffled by this!

thanks

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Hyper V Replica Slow Performance of vrtual Machine with SQL-Server

Hi all,

I’m testing a virtual machine setup with Server2016 as host and replica and Server2016 and SQL-Server 2016 in the guest-VM.My setup is 1TB Raid 1 for the host-system and 1TB Raid 1 for the VM. Hyper-V Replica is enabled and synchronizing every 5 minutes.
There are 5 DB’s with together about 60GB in the VM.

Despite the fact that i should probably use a different harddisk-setup/Raid for the VM, I see poor write and read performance in the VM. I used Perfmon to messure the "avereage disk sec/write" and "average disk sec/read" performance.

These are measurements over 4 days:

  • Host AverageDiskSecWrite of the harddisk the VM resides on = 0,027
  • Host AverageDiskSecRead of the harddisk the VM resides on = 0,015
  • in the VM AverageDiskSecWrite of the harddisk = 0,361
  • in the VM AverageDiskSecRead of the harddisk  = 0,016

I see that the AverageDiskSecWrite in the VM is very poor. I also tried a DB-restore in the VM with hyperV replica enabled and disabled. With replication enabled it took about 2 and a half hours to restore a 42GB Database. With replication disabled it took
about 40min to restore the same 42GB Database.

Now to my actual questions and hopefully someone can help me please :).

Why is it, that with replication enabled it takes more than 4 times longer to restore a DB?

Are there any HyperV-settings that I could use to get better write and read Performance in the VM?

I already googled a lot but despite the fact that i should use a different harddisks-setup for the VM i didn’t find anything useful.

The things simplest setup suggested is a raid 1 for the VM-OS and a different raid 1 for the VM .mdf and .ldf files.

Kind Regards

Chris

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question on high memory utilization

My Hyper-V server always go high on util. Im using Windows server 2012 R2, 64G ram, 2Sockets 8 cores each. Dynamic memory disabled.

Here are the specs of ny VMs and its numa config:

VM1:

4vcpu

2 Gig start up memory

VM2:

2vcpu

8Gig start up memory

VM3:

8vcpu

16Gig start up memory

I’m suspecting numa is the culprit but I am not sure.

My Question is, in NUMA Topology, what does Max # of processors and Max amount of memory mean? Am I correct to say that if the application requires more memory than it was allocated then it will grab memory from other numa nodes up to the maximum that is
set in numa topology?

What should be the ideal max numa processor and memory?

Running rammap does no good since when the server is in high util i can no longer login to the server, only choice is to do hard reboot.

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VM configuration version

Hi Experts

we am using HyperV 2016 and i am new to HyperV, i have a requirement on one VM to change configuration version from 5 to 8,is there any risk involved in it and is this a reversible operation(i.e if any issues can i revert back from 8 to 5)

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Hyper-V role not remove

Hi,

I’ve tried to uninstall Hyper-V role using both GUI and Powershell method but I can’t remove that. When the server restart I get the following error in Server Manager:

Any help would be appreciated.

Thanks

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