Abstract: A virtualized environment includes a pool of VMs, each VM configured to run one or more virtual containers. Each virtual container runs as an isolated process in userspace on a guest operating system. A virtualization management module performs resource management operations to place containers within the pool of VMs according to performance metrics, and also perform high availability functionality for containers with critical containers.

Abstract: Techniques for placing virtual machines based on compliance of device profiles are disclosed. In one embodiment, a list of device profiles may be maintained, with each device profile including details of at least one virtual device and associated capabilities. Further, a device profile from the list of device profiles may be assigned to a virtual machine running on a first host computing system. A virtual device and associated configurations required by the virtual machine may be identified to comply with the device profile. A management operation may be performed to migrate or clone the virtual device and associated configurations from a second host computing system to the first host computing system to support the compliance of the device profile assigned to the virtual machine.

Abstract: Techniques for placing virtual machines based on compliance of device profiles are disclosed. In one embodiment, a list of device profiles may be maintained, each device profile including details of at least one virtual device and associated capabilities. Further, a first device profile from the list of device profiles may be assigned to a virtual machine. Furthermore, the virtual machine may be placed on a host computing system based on compliance of the first device profile.

Abstract: A method to enable container access to a peripheral device, where the container is hosted by a virtual machine running in a first host and the peripheral device is directly connected to a second host, is provided. The method includes determining a bandwidth requirement of the peripheral device, and comparing the bandwidth requirement of the peripheral device to bandwidth allocated to the virtual machine that is hosting the container. If the bandwidth requirement of the peripheral device is higher than a threshold percentage of the bandwidth allocated to the virtual machine, the virtual machine is migrated from the first host computer to the second host computer. On the other hand, if the bandwidth requirement of the peripheral device is lower than the threshold percentage of the bandwidth allocated to the virtual machine, processes are launched to establish a network channel by which the container communicates with the peripheral device.

Abstract: Aspects of peripheral device sharing for virtual machines are described. In some aspects, a virtual machine requires access to a peripheral device. The virtual machine is executed in a first host computing system. A table is accessed, and includes a list of peripheral devices, an indication that the peripheral device is connected to a second host computing system, a bandwidth requirement of the peripheral device, and a network bandwidth allocated to the virtual machine. The virtual machine is provided with access to the peripheral device based on a comparison between the bandwidth requirement of the peripheral device, and a threshold percentage of the network bandwidth allocated to the virtual machine.

Abstract: The present disclosure is related to dynamically control log level in a datacenter. An example machine-readable medium may store instructions executable by a processing resource to receive a stream of log data from a plurality of end devices via associated logging interfaces in the virtual datacenter. Further, the received stream of log data is dynamically analyzed, Furthermore, the log level of any one or more of the plurality of end devices is then controlled based on the analysis. The log data associated with the controlled log level of any one of the one or more of plurality of end devices is then received, which can then assist in debugging and troubleshooting.

Abstract: Techniques for sharing a peripheral device connected to a first host computing system in a cluster are disclosed. In one embodiment, a request to access the peripheral device connected to the first host computing system is received from a virtual machine running on a second host computing system. Further, a bandwidth requirement associated with the peripheral device is determined. Furthermore, one of enabling the virtual machine to remotely access the peripheral device over a network and recommending migration of the virtual machine to the first host computing system to locally access the peripheral device is performed based on the bandwidth requirement of the peripheral device.

Abstract: A virtualized environment includes a pool of VMs, each VM configured to run one or more virtual containers. Each virtual container runs as an isolated process in userspace on a guest operating system. A virtualization management module performs resource management operations to place containers within the pool of VMs according to performance metrics, and also perform high availability functionality for containers with critical containers.

Abstract: Examples provide a fault tolerant virtual machine (VM) using pooled memory. When fault tolerance is enabled for a VM, a primary VM is created on a first host in a server cluster. A secondary VM is created on a second host in the server cluster. Memory for the VMs is maintained on a shared partition in pooled memory. The pooled memory is accessible to all hosts in the cluster. The primary VM has read and write access to the VM memory in the pooled memory. The secondary VM has read-only access to the VM memory. If the second host fails, a new secondary VM is created on another host in the cluster. If the first host fails, the secondary VM becomes the new primary VM and a new secondary VM is created on another host in the cluster.

Abstract: A virtualized environment includes a pool of VMs, each VM configured to run one or more virtual containers. Each virtual container runs as an isolated process in userspace on a guest operating system. A virtualization management module performs resource management operations to place containers within the pool of VMs according to performance metrics, and also perform high availability functionality for containers with critical containers.

Abstract: A method to enable container access to a peripheral device, where the container is hosted by a virtual machine running in a first host and the peripheral device is directly connected to a second host, is provided. The method includes determining a bandwidth requirement of the peripheral device, and comparing the bandwidth requirement of the peripheral device to bandwidth allocated to the virtual machine that is hosting the container. If the bandwidth requirement of the peripheral device is higher than a threshold percentage of the bandwidth allocated to the virtual machine, the virtual machine is migrated from the first host computer to the second host computer. On the other hand, if the bandwidth requirement of the peripheral device is lower than the threshold percentage of the bandwidth allocated to the virtual machine, processes are launched to establish a network channel by which the container communicates with the peripheral device.

Abstract: Examples provide a fault tolerant virtual machine (VM) using pooled memory. When fault tolerance is enabled for a VM, a primary VM is created on a first host in a server cluster. A secondary VM is created on a second host in the server cluster. Memory for the VMs is maintained on a shared partition in pooled memory. The pooled memory is accessible to all hosts in the cluster. The primary VM has read and write access to the VM memory in the pooled memory. The secondary VM has read-only access to the VM memory. If the second host fails, a new secondary VM is created on another host in the cluster. If the first host fails, the secondary VM becomes the new primary VM and a new secondary VM is created on another host in the cluster.

Abstract: Examples provide a pooled memory heartbeat for virtual machine hosts. A virtual controller creates a pooled memory heartbeat file system in a shared memory partition of a pooled memory. An agent running on each host in a plurality of virtual machine hosts updates a heartbeat file at an update time interval to lock the heartbeat file. The lock indicates the heartbeat status for a given host is active. A master agent accesses the shared memory partition to check the heartbeat status of each host in the pooled memory file system. The heartbeat status is used to determine whether a host that has lost pooled memory access, is network isolated, or failed. If the pooled memory heartbeat status for a given host indicates the host is a failed host, the set of virtual machines running on the given host are respawned on another healthier host.

Abstract: Examples provide for virtual machine recovery using pooled memory. A shared partition is created on pooled memory accessible by a plurality of virtual machine hosts. A set of memory pages for virtual machines running on the hosts is moved to the shared partition. A master agent polls memory page tables associated with the plurality of hosts for write access. If the master agent obtains write access to a memory page table of a given host, the given host that previously held the write access is identified as a failed host or an isolated host. The virtual machines of the given host enabled to resume from pooled memory are respawned on a new host while maintaining memory state of the virtual machines using data within the pooled memory, including the virtual machine memory pages, memory page table, host profile data, and/or host-to-VM table data.

Abstract: An example method is provided for a computing device to perform traffic handling for a container in a virtualized computing environment. The method may comprise receiving a traffic flow of packets from a virtual machine and identifying a container from which the traffic flow originates based on content of the received traffic flow of packets. The container may be supported by the virtual machine. The method may further comprise retrieving a policy configured for the identified container and handling the received traffic flow of packets according to the policy.

Abstract: A system and method for responding to a virtual machine (VM) network failure for a host in a network partition in a high availability (HA) cluster. The method includes providing a plurality of network partition response options; and receiving a selection of a first network partition response option from the plurality of network partition response options, the selected first network partition response option causing a processor to transfer execution of a VM on the host to a second host that has VM network connectivity upon detecting a VM network failure for the host.

Abstract: An example method is provided for a computing device to provide quality of service (QoS) for a container in a virtualized computing environment. The method may comprise receiving a traffic flow of packets from a virtual machine and identifying a container from which the traffic flow originates based on content of the received traffic flow of packets. The container may be supported by the virtual machine. The method may further comprise retrieving a QoS policy configured for the identified container. For example, the QoS policy may specify a network bandwidth allocation for the container. The method may further comprise forwarding the received traffic flow of packets according to the QoS policy.

Abstract: A method for managing tools on a virtual machine includes provisioning a virtual machine. The method also includes, before powering on the virtual machine, collecting a list of one or more tools on the virtual machine, and a version associated with each of the one or more tools. The method also includes determining if an upgrade is available for any of the one or more tools. Responsive to determining an upgrade for any of the one or more tools is available, the method includes retrieving a tool image comprising an upgraded version of the one or more tools on the provisioned virtual machine. The method further includes modifying a virtual disk file of the provisioned virtual machine using the tool image.

Abstract: A method for managing tools on a virtual machine includes provisioning a virtual machine. The method also includes, before powering part the virtual machine, collecting a list of one or more tools on the virtual machine, and a version associated with each of the one or more tools. The method also includes determining if one or more new tools should be installed on the virtual machine. Responsive to determining if one or more new tools should be installed, the method includes retrieving, a tool image for each new tool to be installed. The method further includes installing the one or more new tools on a virtual disk file of the provisioned virtual machine using the tool images.

Abstract: An example method is provided to maintain state information of a virtual machine in a virtualized computing environment through a self-triggered approach. The method may comprise detecting, by a first host from a cluster in the virtualized computing environment, that the first host is disconnected from a network connecting the first host to a distributed storage system accessible by the cluster. The method may also comprise suspending, by the first host, a virtual machine supported by the first host and storing state information associated with the virtual machine. The method may further comprise selecting a second host from the cluster and migrating the suspended virtual machine to the second host such that the suspended virtual machine is able to resume from suspension on the second host based on the stored state information.