Introduction to OceanStor 9000 V100R001C01 software architecture

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The software architecture of OceanStor 9000 V100R001C01 is as follows:
The software architecture is fully symmetric with WushanFS run on all storage nodes. Metadata is evenly distributed to eliminate performance bottlenecks. OceanStor 9000 supports the seamless flexible expansion of 3 to 288 storage nodes and enables file system capacity to be expanded up to 40 PB.
OceanStor 9000 provides NFS, CIFS, and FTP services, enabling clients running different operating systems to share files.
Two types of client authentication modes are supported, local authentication and domain server authentication based on Active Domain (AD), Lightweight Directory Access Protocol (LDAP), and Network Information Service (NIS).
Administrators can securely access DeviceManager and OceanStor SystemReporter (an optional report tool) to manage system resources and monitor system status and performance through HTTPS.

Other related questions:
Introduction to OceanStor 9000 V100R001C01 data balancing
OceanStor 9000 data balancing refers to the balancing of data capacity on storage nodes. After a disk or node is added, you can migrate it to make data evenly distributed on all storage nodes. OceanStor 9000 provides two modes of data balancing: - Manual balancing: After a data balancing task is manually started, the system checks whether data in each node pool is balanced in the system. If data is unbalanced, the system starts a data balancing task. - Automatic balancing: After a disk or node is added, the system waits 30 minutes and then starts a data balancing task. If the waiting time is shorter than 30 minutes and more disks or nodes are added, the system waits another 30 minutes before starting a data balancing task.

Introduction to the high watermark of OceanStor 9000 V100R001C01
In OceanStor 9000 V100R001C01, the default high watermark is that the used space occupies 85% of the total storage space of a node pool. When the used space of a node pool reaches the high watermark, the system reports a capacity insufficiency alarm, and refuses data to be written to the node pool. By default, the alarm clearance threshold is 5% lower than the high watermark. That is, when the percentage of used space is lower than 80%, the capacity insufficiency alarm is cleared. The alarm threshold and clearance threshold of the high watermark can be manually changed.

Software architecture of OceanStor ReplicationDirector
      Web,Storage,Mobile,OceanStor V3 series,OceanStor T series Based on the B/S architecture, OceanStor ReplicationDirector (current major version: V100R003C10) provides disaster recovery management through the browser at the client. OceanStor ReplicationDirector consists of three subsystems: OceanStor ReplicationDirector Agent, OceanStor ReplicationDirector UI, and OceanStor ReplicationDirector. 1. OceanStor ReplicationDirector Agent Installed on a service host, OceanStor ReplicationDirector Agent is used to discover applications on hosts, maintain consistency of application data, and recover applications. It also transfers information about application systems to the OceanStor ReplicationDirector Server, helping system administrators manage and configure data protection and disaster recovery tasks. 2. OceanStor ReplicationDirector UI Installed on a disaster recovery management server, OceanStor ReplicationDirector UI is used to provide a GUI, where you can perform routine management, such as configuration, maintenance, and modification. 3. OceanStor ReplicationDirector Server Installed on a disaster recovery management server, OceanStor ReplicationDirector Server is used to control the disaster recovery service process, schedule disaster recovery policies, and manage disaster recovery resources and disaster recovery configuration data. [OceanStor ReplicationDirector][Architecture|Component|Subsystem][Contain|Consist of?][Which|What|How much|How many?] 1      

OceanStor 9000 V100R001C01 software installation process
OceanStor 9000 V100R001C01 software installation process: 1. Obtain the installation packages and configuration file. 2. Prepare tools and cables. 3. Check hardware configuration and record storage node SNs. 4. Check software configuration. 5. (Optional) Plan network segments. 6. Configure switches. 7. Install WushanFS. 8. (Optional) Install SystemReporter.

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