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0

Ok, I've figure it out. I've added this to /etc/network/interfaces: post-up /sbin/ifconfig br0:0 192.168.0.3 netmask 255.255.255.224 So now host /etc/network/interfaces looks like this: auto lo br0 iface lo inet loopback iface eth0 inet manual iface br0 inet static bridge_ports eth0 address 192.168.0.1 broadcast 192.168.0.95 ...


0

your VM IP has to be with this format: IP x.y.z.3 MASK 255.255.255.255 gateway x.y.z.1 (if it does gateway, else same ip and replace last number by 1) by the way the ip are link to Mac address so carefuller to set correctly the mac address, some providers can block your machine if you send an incorrect mac address to the network


8

can I put PowerCLI "code" (Cmdlets, etc.) inside a PS1 file, along with other PowerShell code, and execute it like a normal PS1? Yes. But if you want it to work as expected (as when you use the PowerCLI console) you'll need to initialize the environment. You can see how this is done by examining the shortcut "VMware vSphere PowerCLI.lnk", the target ...


0

The 127,835.94 milliseconds is a summation and you need to divide by the sample time to get the correct %RDY values. It looks like you are already getting the correct %RDY readings now though. You can go quite high with the vCPU to physical cpu ratio but not the way you are doing it. You have way too many quad vCPU VMs and even a 8 vCPU VM. There are ...


1

Honestly, I would consider deploying a desktop level machine as a secondary server before I used VirtualBox on SBS2011. Neither is ideal, but the desktop is, IMHO, "less bad."


0

Depending on what type of blade you have and how it is configured, it will have a certain number of physical nics inside of it. You cannot give it more, other than by installing additional mezzanine cards in the blade. Certain types of nics do support partitioning, which is the ability to logically divide the physical nic into multiple logical nics, that ...


0

Single NAT on edge should work. Due to security reasons people always discourage to have virtualized edge router. However internal edge could work well on a virtual machine. Even with edge or virtual e.g. on esxi you use vmswitches and vm interfaces to direct traffic on your edge router. However it seems you are trying to work on too many areas. First try to ...


10

I can describe some of the experiences I've had in this area... I don't believe that VMware does an adequate job of educating customers (or administrators) about best-practices, nor do they update former best-practices as their products evolve. This question is an example of how a core concept like vCPU allocation isn't fully understood. The best approach ...


0

In Linux, system information is revealed in /sys/devices/virtual/dmi/id/ . See my answer here for a handy script to show you all the information available. root not required.


35

You state in the comments you have a dual quad-core ESXi host, and you're running one 8vCPU VM, and fourteen 4vCPU VMs. If this was my environment, I would consider that to be grossly over-provisioned. I would at most put four to six 4vCPU guests on that hardware. (This is assuming that the VMs in question have load that requires them to have that high ...


1

Switch to using a bridge device and make sure the qemu instance is connected to that. You can find a guide to doing that on the Debian wiki: https://wiki.debian.org/BridgeNetworkConnections The bridge device will act like a virtual bridge and it would thus seem to your VM that it's connecting to the actual network.


0

First about differences: KVM is a kernel based virtual machine. So virtualization becomes a job for the standard kernel of the host. There is no additional hypervisor in between. XEN is a hypervisor running underneath a ccontrolling VM, called Dom0 (priviledged VM). The hypervisor can run modified, XEN-aware Linux VMs in PV mode. ParaVirtualized VMs have ...


1

engine backup is done using a script aptly called engine-backup. Backing up VMs is trickier, there's a built-in API[1] but it will only be effective if you're using a host OS that is capable of libvirt blockcommit, i.e. latest Fedora or EL7.1. Otherwise, you can backup the VMs the old fashined way, using in-agent backups or stopping them to take a backup, ...


0

If you an attach enough local storage you can build your own iSCSI HA-solution. Reiceipe: - drbd > 8.2.x - tgtd Set up two local VMs that replicate two LVs onto each other in drbd dual primary mode. Use each local iscsi target. In XEN-server make sure to use eacch target in active/passive mode (no rr!).


0

When choosing an HA solution, you'll need to decide what level of downtime (if any) is acceptable. This will affect the complexity of your setup. I think you have two options without purchasing additional equipment (with further permutations): "Always up" - DRBD in Primary-Primary 5-15 minutes of downtime - DRBD in Primary-Slave mode For the highest ...


0

Just checked and it turns out switches need to be white listed on the network, so yes 'thewabbit' you were correct the one mac-address per physical port rule. Workaround looks like having to use NAT port forwarding from the pubic IP address to the internal ones - not ideal but should do the trick. Thanks again for the advice, Vackar


10

I think you may have a VMware memory ballooning issue. There's a chance that memory overcommitment across the vSphere infrastructure is too high. You won't be able to remediate this without access to the vSphere vCenter, but you should be able to detect this from within your virtual machines, assuming vmtools are installed: Can you please post the output of ...


0

I normally set mine up like this: auto eth0 iface eth0 inet manual auto br0 iface br0 inet manual bridge_ports eth0 bridge_stp off bridge_fd 9 bridge_maxage 12 bridge_hello 2 Shutdown the guest, then run ifdown br0 && ifup br0, then startup the guest and configure the interface inside the guest with the static ip information.


2

You should be able to find it through: $ cat /etc/xensource-inventory DEFAULT_SR_PHYSDEVS='dev/sda3' It should be using lvm. Depending on the version and the state of the volumes, you may want to run: # pvscan PV /dev/sdb1 VG sas01 lvm2 [558.37 GiB / 228.37 GiB free] PV /dev/sda5 VG kvm01-vg lvm2 [237.63 GiB / 0 free] Total: 2 [796.00 ...


0

Journalling in the guest OS can give a false sense of security in case of an unclean shutdown of the host OS. For journalling to work, it is essential that the OS is in control of the order in which data is written to disk. The guest OS may think it is in control, but there is no guarantee that the host OS actually writes the data to disk in the same ...


0

Unfortunately, Windows Server 2012 doesn't support SCVMM 2008 R2, it only supports SCVMM 2012 SP1.


1

Your guest has the same IP address than your host's bridge. This is wrong: guest should have a different IP address than host interface. As a side note, this is the very reason why pinging your guest address from your host cause a reply coming from the host itself: you are pinging an host IP! Try to configure your guest with a free IP address inside your ...


-1

Software assurance give you the right to upgrade during software assurance life . You don't have to transfer license but request new one. Its in your microsoft vlsc account. http://www.microsoft.com/licensing/software-assurance/ be carefull with virtual licensing . microsoft say : 2012 r2 is 2 vitual + 1 physical references : ...


0

It looks like the REJECT lines in your FORWARD table are blocking everything.


2

Yes, it will take the load. In the world of virtualisation - in my experience at least - CPU is very rarely the bottleneck. I'd rate (prioritise) the physical aspects in this order: Quantity of RAM Speed of RAM Available disk I/O CPU core count (note, no mention of speed!) Network I/O We have some pretty meaty virtualised implementations (e.g.: large ...


0

Got the "no it's not possible" statement from Microsoft. https://social.technet.microsoft.com/Forums/windowsserver/en-US/7ff69b62-59dd-49c1-aa3e-8435076b1cb6/static-ip-injection-to-guest-vm-in-win2k8-r2


1

You have to set up DNAT on the Host to forward ports from the outside IP address to the VMs in the private VM network you have set up. You cannot share the IP on the layer 3.


0

One approach is to put libfoo-libevent and libfoo-ev into different repositories and then use yum priorities. Unfortunately priorities are assigned per-repository, not per-package.


0

Cloud systems such as openstack (and Microsoft Azure) use cloud-init to provision those things. Cloud-init is fairly flexible and should allow you to for instance mount an iso into the vm with the provisioning info. I would look into that. It would require your VM templates to already be setup with cloud-init before you use them to spin VMs.


0

Use scp and copy the VM files to another location.


1

Here is a more detailed walkthrough of bridging: Follow these steps on the kvm server: sudo stop network-manager echo "manual" | sudo tee /etc/init/network-manager.override That will disable your network-manager and prevent it from restarting. next we work on the interface config, starting by taking the interface down: ifdown eth0 edit ...


1

I have a very similar setup. I found the answer here (Extremely slow file transfers to Hyper-V VM on local machine) With the Broadcom chipset I disabled the virtual queues and all latency disappeared. Make this change on the physical NIC, not the virtual NIC.


0

For the configuration you want, you need to have the virtual machine's NIC use your existing bridge br0 on the host. Unfortunately vagrant-libvirt doesn't seem to support this configuration (it only uses macvtap, which is meant to take over a physical interface completely and doesn't help you here because the host cannot use the interface). I would contact ...


4

Since the 10.0 Release, FreeBSD ships its own Hypervisor: bhyve. Its possible to emulate BSD and Linux Guests, with Windows-support on the way.


6

I see two solutions here. (i did configuration like this many years ago) google use many ip's as MX. You can define in transport map, that first mail is routed via gmail-smtp-in.l.google.com., and second via alt1.gmail-smtp-in.l.google.com. Then - using iptables and nat/POSTROUTING - nat connections to first google MX via first ip, and to second google MX ...


2

With Failover Clustering, each Hyper-V host would be connected to the same LUN. You would then create a Cluster Shared Volume from that LUN. The virtual hard disks for the virtual machines would "live" on the CSV and the virtual machines would "run" from one Hyper-V host or the other. In the event of a failure of one of the Hyper-V hosts, the virtual ...


1

You will need to have some sort of hypervisor installed before you can run a virutal machine. For the use case you are proposing you sound more like you're asking to netboot your workstation. There are apps that will let you do either, although it's not easy to netboot Windows unless you're using Windows PE.


0

People like to hate on OVZ for some reason but seem to forget that LXC is a derivative of OVZ. If OVZ is such old tech then why is it's DNA in brand new tech? Other than doing something with cgroups, I don't see OVZ going away any time soon. There is cross polination with LXC and if and when LXC is a drop in replacement for OVZ then OVZ can go away. It's ...


1

With a few exceptions, such as classic VMware on the guest, it's not possible to nest virtualization within virtualization. Although this would be a convenience for you, you'll have to attack it from another angle. Perhaps look into exporting a machine image from Virtualbox and then importing to Azure. However, I did find somebody doing just what you ask: ...


2

In Icehouse and later you can convert Cinder volume to Glance image with upload-to-image command: cinder upload-to-image <volume> <image-name>



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