A. Generally speaking, RAID5 requires at least 3 hard disks.
B. Checksum data is evenly distributed on all hard disks
C. Dedicated hard disk to save verification data
D. If N hard disks of the same specification are used as a RAID5, the actual available space is the space of N-1 hard disks.
A. After installing the CAS software, the management network gateway is used as the default gateway by default
B. If the storage network runs at Layer 3, you need to configure static routing locally
C. The server where the CAS system is installed can be configured with multiple default gateways
D. If the storage network does not run Layer 3, there is no need to configure static routing locally
A. The system time of the CVK host where the virtual machine is located will not be synchronized during the virtual startup process
B. The virtual machine mainly includes configuration files and image files
C. The virtual machine configuration file defines the virtual hardware information of the virtual machine
D. A virtual machine is a complete system running on a physical server. It contains its own virtual CPU, memory, disk, network card and other virtual hard disk resources.
A. If the virtual switch is configured with "dynamic link aggregation", the connected physical switch must also be configured with dynamic aggregation
B. If the virtual machine switch is configured with "static link aggregation" and the load sharing mode is "advanced load sharing", static aggregation should not be configured on the physical switch.
C. If the virtual machine switch is configured with "static link aggregation" and the load sharing mode is "basic load sharing", static aggregation should be configured on the physical switch
D. If the virtual machine switch is configured with "static link aggregation" and the load sharing mode is "active/standby load sharing", aggregation should not be configured on the physical switch.
A. The number of CPUs, memory size, and storage capacity in the virtual machine template cannot be modified
B. The virtual machine template is saved in the "/vms/templet" local directory of the CVM host by default
C. A virtual machine template is a copy of a virtual machine that is used to easily create and configure multiple new virtual machines.
D. There are two ways to create a virtual machine template: convert to a template and clone to a template. The clone to template must be executed when the virtual machine is shut down.
A. After the user submits a cloud host application, the organization administrator needs to approve the virtual machine electronic flow
B. After the cloud host application electronic flow is approved, the system will automatically deploy the virtual machine
C. Organization administrators can deploy virtual machines using virtual machine templates and assign them to organization users
D. After the user submits a cloud host application, he can directly obtain the right to use the virtual machine
A. When using thin volumes, the disk usage on the host side may be less than the capacity usage on the storage side.
B. When thin volumes are mirrored, cloned, or replicated between storages, only the data actually used needs to be synchronized, saving CPU, disk, and bandwidth overhead
C. Thin volumes allow storage over-allocation
D. For critical businesses, it is recommended to use thick provisioned storage volumes to ensure the occupation of storage resources.
A. Link aggregation can provide link redundancy and increase link bandwidth.
B. In an aggregation group, even if a member port has different attribute configurations and protocol configurations from the corresponding aggregation interface, it will not affect the member port from becoming the selected port.
C. The aggregation group and the aggregation interface have the same number.
D. In the same aggregation group, all selected ports do not necessarily need to have the same operation key
A. Bandwidth
B. Maximum number of supported servers
C. IOPS
D. Maximum number of luns supported
