Resolution: NFS is a network file system. With the continuous development of the network, this protocol version has gradually increased. There is already

The latest version of 4.1.

Quality of Service (QoS) is a set of technologies used to ensure that network traffic is allocated resources according to predetermined priorities. The three main working principles of QoS are I/O Priority Scheduling, I/O Performance Assurance, and I/O Flow Control. I/O Latency Burst is not one of the working principles of QoS.

A snapshot is a point-in-time copy of the source data that serves as a data backup accessible to hosts. Snapshots are commonly used to recover data in case of accidental deletion or corruption, or to allow multiple users to access the same data without interference with each other.

The evolution is SCSI-1 > SCSI-2 > SCSI-3. SCSI stands for " Small Computer System Interface " , and it is a protocol system that supports communication between different devices. The latest protocol is SCSI-3, which provides a transmission speed of up to 1 GB/s. The evolution of SCSI is SCSI-1 > SCSI-2 > SCSI-4 > SCSI-3.

The main functions of the business continuity solution are to minimize the impact on the business service, ensure zero data loss and zero service interruption, and improve the utilization rate of the disaster recovery equipment. Predicting the disaster occurrence accurately is not a function of the business continuity solution.

With the increase of service volume and diversity, problems such as difficulty in expanding the capacity of the DAS architecture, data and materials being scattered on different devices and hard to be managed in a centralized manner, and hard to be searched for may occur. Adding more servers to share the DAS storage is not an issue.

The correct order for the evolution of mid-range storage architectures is:

Fixed storage system configuration

Flexible hardware component configuration

Flexible software function configuration

Dual-controller active-active redundancy configuration

In the early stage, storage systems were fixed configurations with little flexibility. As technology progressed, the ability to change hardware components and software functions was added, allowing for more flexibility in the storage system. The last stage is the implementation of dual-controller active-active redundancy configuration, which provides high availability and failover capabilities in case of a hardware failure.

SmartKit is an O & M tool that integrates cloud computing, server, and storage. It cannot be used to monitor third-party devices, as it is only designed to monitor and manage devices in the SmartKit ecosystem.