Whether the virtualization software supports USB device encryption


For some VM applications, you need to insert a USB encryption device into the server that can be identified by the VM.
FusionCompute supports the configuration of USB devices for VMs but the prerequisite is that these USB devices exist on the hardware server. There are two modes for USB devices:
1. USB device simulation
2. USB device pass-through
Special USB devices (like encryption devices) are directly mapped to a VM, identified by the OS and applications, and configured by commands at the underlying layer.
USB encryption devices are responsible for identifying other USB devices. They require dedicated drivers to work on a VM.
After a VM is migrated to another host, any connected USB devices cannot be used.

Other related questions:
Whether the virtualization software supports memory compression
Currently, the virtualization software does not support memory compression. However, FusionCompute has achieved a memory compression ratio of 1.5 by using an intelligent memory multiplexing policy.

Whether VMs support devices with USB 3.0 ports
Currently, FusionCloud desktop solution VMs support USB 2.0 and earlier versions. If the USB port on a PC or laptop is USB 3.0 or later, you need to replace it with a USB 2.0 port.

Whether the USG6000 supports vertical encryption
The USG6000 does not support vertical encryption.

Whether virtualization supports error tolerance
Currently, virtualization does not support error tolerance. Error tolerance requires double the resources, and scenarios that require zero service interruption seldom exist. Virtualization support HA, however, and the duration of its service interruptions is just the amount of time it takes to restart a VM, which meets the basic requirements for most error tolerance. (1) Error tolerance requires that the active and standby copies run together, resulting in high resource usage and costs. (2) Error tolerance can only be implemented on single-vCPU VMs. In most cases, virtual servers are configured with multiple vCPUs. Therefore, customers cannot benefit from this function. (3) The active and standby VM hardware CPUs must be the same, making deployment more difficult. (4) The mainstream virtualization vendors provide HA to achieve high availability of virtual servers.

Whether pVLAN is supported in virtualization
pVLAN is supported in virtualization, but the constraints are as follows: Using pVLAN can reduce VLAN usage. The master VLAN can be configured during system installation and the slave VLANs can be added gradually in subsequent phases. pVLAN and VRRP are mutually exclusive. If pVLAN is used, VRRP cannot be configured on aggregation switches, and the switches must be stacked.

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