Cinder is a storage resource management system which provides persistent block storage resources for VMs.

Cinder can encapsulate backend storage resources and provide unified APIs for external users.

Cinder manages volumes, including volumes, volume types, and volume snapshots.

Cinder can be used to attach volumes but cannot separate volume snapshots.

Privilege VMs

Common VMs

Security VMs

Management VMs

Services are migrated from traditional data centers to cloud data centers.

Traditional data centers are taken over by cloud data centers after being cloudified.

Services are migrated from the existing cloud data centers to other cloud data centers.

Services are migrated from cloud data centers to traditional data centers.

CentOS

Red Hat Linux

Windows Server

SUSE Linux

Single-server deployment

Distributed deployment

Local HA system

Remote HA system

Launch expensive advertising campaigns and investigate employees ' personal information.

Run standard security software.

Comprehensively investigate employees ' personal information and meet or exceed the government ' s compliance requirements.

Ensure physical security and hire TSA personnel.

Automatic device discovery

Manual creation of a device

Manual import of devices in batches

Built-in device template

TRUE

FALSE

TRUE

FALSE

Requirements are transferred through documents, which lacks communication.

The testing automation level is low, quality control and assurance are not complete, and the feedback is slow.

Manual O & M is tedious, complicated, and error-prone. There may be a large number of faults, and the operation duration is long.

The IT staff turnover rate is high, and skills are hard to transfer.