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OceanStor 9000 V300R005C00 File System Feature Guide 11

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Requirement Analysis

Requirement Analysis

This section analyzes the requirements of a financial institution that uses Network Data Management Protocol (NDMP) backup for data backup and comes to a conclusion.

Requirement Source

A financial institution uses the OceanStor 9000 to manage service data. The current services are as follows:

  • Amount of daily changed data: 50 MB to 100 MB
  • Total amount of data: ≤ 240 TB
  • Available bandwidth: 10 Mbit/s

The financial institution requires that data be not lost due to a system crash or misoperation, and can be recovered once the data is lost. The specific requirements are as follows:

  • Data backup

    The changed data is backed up every day without interrupting normal services, and a full backup can be performed periodically. If data is lost, the data can be recovered using the backup data.

  • Centralized data management

    As service amount grows, an increasing number of storage devices will be used to store management data. All data is expected to be backed up to the same place and be centrally managed, saving device cost and maintenance cost.

Requirement Analysis and Conclusion

The previous requirements indicate that the financial institution needs a backup solution. Table 13-6 lists the considerations for providing a backup solution.

Table 13-6  Considerations for providing a backup solution

Consideration

Description

Amount of changed data

The amount of changed data determines a backup mode and backup period.

System performance

The impact on system performance must be minimized and daily services must be maintained.

Data availability

Backup data is used to recover lost data. Therefore, availability of backup data must be ensured.

Service continuity

Once data is lost, use backup data to recover the lost data to ensure service continuity.

Other requirements

Other requirements include requirements for cost control and centralized data management.

The detailed analysis is as follows:

  • Amount of changed data

    The amount of changed data of this financial institution is small. Therefore, there is no need to perform a full backup every time.

  • System performance

    The financial institution hopes that backup services do not affect other services. Therefore, backup services need to be performed during off-peak hours and the amount of data to be backed up needs to be as small as possible. In this way, backup time window can be shortened.

  • Data availability

    Data loss may occur at any time. Therefore, backup data must be available always.

  • Service continuity

    Backup data is used to recover data, ensuring service continuity.

  • Other requirements

    To adapt to the future service expansion, the financial institution hopes for reduced management and maintenance cost and centralized data management. Therefore, data needs to be backed up to the same place, facilitating data acquisition when needed.

Based on the preceding analysis, NDMP backup with 3-way networking is the best solution:

  • Ask the financial institution to prepare a tape library for storing backup data and a backup server that has NetBackup installed.
  • Use differential incremental backup to perform daily backup. A full backup is performed periodically.
  • Perform backup tasks during off-peak hours, for example, 0:00 am to 6:00 am every day.
  • Connect the OceanStor 9000 to the backup server and tape libraries.
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Updated: 2019-03-30

Document ID: EDOC1000101823

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