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4

Docker is VERY lightweight compared to a VM and a VM system should function just fine running containers. Each container essentially does run as an isolated system so it's very good for isolation from a perspective of system stability. Based on your description it sounds like the ideal use case for Docker. If you do experiment with Docker make sure you use ...


3

The Virtual Machine startup settings (accessed from the Configuration tab of each host) don't have any bearing on virtual machine startup in an HA cluster. The VM restart priority settings of the HA cluster control VM restarts for each VM. You need to make sure you have your virtual machine restart priority configured for your VM's in the HA settings of the ...


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Mac OSX has Active Directory support. Here's a best practices document from Apple. You should be able to use Active Directory to provide both logins and file shares.


2

Does /usr/bin/pygrub file really exist on your Dom0? Have you tried to run it without PyGrub? Remove bootloader and add kernel = '/vmlinuz' ramdisk = '/initrd.img' to use host system's kernel. If you haven't configured GRUB on the guest system properly, PyGrub will not be able to boot. Also check this ...


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This depends heavily upon the reason why your host failed... Without knowing that, it doesn't make sense to heal it automatically. A VMware PSOD is much different than a physical hardware failure, which is different than a networking or power issue... So the answer here is, "it depends..."


1

If by "don't seem to recognize each other" you mean you can't send and receive ICMP pings that's because ICMP is disabled on Azure VMs. Try opening a TCP socket on the desired port running the service to which you want to verify connectivity instead: PS C:\Windows\system32> New-Object Net.Sockets.TcpClient "192.168.10.10", 8043 Client : ...


1

bad news for you there: you can not change the address on the "Physical NIC", you need to do it either in the Ibiza portal and change it there, upon configuration during creation, to a static IP. This will create a reserved lease on the Azure DHCP scope for you. If you change it in the VM itself then you're lost and you will not be abe to reconnect the VM ...


1

No it does not. VMWare uses gang scheduling of virtual cores - an 8 vCPU VM waits until all eight cores can be scheduled at once. This means keeping VM vCPU counts low reduces contention between VMs each waiting on it's vCPU count of physical cores to be free. Hyper-V schedules cores individually so this consideration does not apply.


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Good point from Deerhunter, I should double check these things. As there is a way to change this behaviour, but check the article. You might want to view the errors/diagnostic screen. Source: http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2042500 Connect to the host via the command line using Secure ...


1

is there a non-negligible overhead associated with container systems that would make it a bad idea to use them inside a VM Does Docker Containers Performance in VMware vSphere help you? or is there any other technical reason why I would not want to use containers? I don't know about Docker in general because I haven't worked with it yet. I think ...


1

There are numerous utilities to measure bandwidth speed on a Linux system. I recommend nethogs (#4) to measure the bandwidth of your application specifically. It doesn't matter what kind of network connection it is. Physical, VMware host-only network, VMware bridged network, etc. # ubuntu or debian (default repos) $ sudo apt-get install nethogs $ sudo ...



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