登录查看更多内容

What are the best ways to recover data from a failed server?

由人工智能和领英社区提供技术支持

Data loss is one of the worst nightmares for any business that relies on servers to store and process information. Whether it's due to hardware failure, human error, malware, or natural disaster, losing data can have serious consequences for productivity, reputation, and revenue. That's why it's essential to have a backup and recovery plan in place, and to know how to recover data from a failed server as quickly and safely as possible. In this article, we'll share some of the best ways to recover data from a failed server, depending on the type and extent of the failure, and the backup methods you use.

在这篇协作文章中查找专家回答

由社区从 5 条内容中精选。了解更多

1 Identify the cause of failure

The first step to recover data from a failed server is to identify the cause and nature of the failure. Is it a physical or logical failure? A physical failure means that the server hardware is damaged or malfunctioning, and may require professional repair or replacement. A logical failure means that the server software or operating system is corrupted or inaccessible, and may be fixed by using recovery tools or restoring from a backup. You can use diagnostic tools, error messages, or visual inspection to determine the cause of failure and the affected components.

添加您的观点

Gideon Ackney

Certified AppSec Practitioner ||Penetration Tester || SSCP || Incide?t Response || CNSP ||CTF Player || THM 1% || Security Analyst
举报内容
Identify the cause of failure: This is the crucial first step, as the appropriate recovery method hinges on the root cause. Common causes include: Hardware failure: Faulty hard drives, RAM, or other hardware components can lead to data loss. Software corruption: Software bugs, viruses, or unexpected shutdowns can corrupt data or render it inaccessible. Accidental deletion: Human error can lead to accidental deletion of critical files. Natural disasters: Events like floods, fires, or power surges can damage servers and cause data loss.

已翻译

赞

2 Assess the impact of failure

The next step to recover data from a failed server is to assess the impact and urgency of the failure. How much data is lost or at risk? How critical is the data for your business operations? How long can you afford to be offline or without access to the data? How secure is the data from unauthorized access or tampering? These questions will help you prioritize and plan your recovery strategy, and decide whether you need to involve external experts or notify your customers or stakeholders.

添加您的观点

Gideon Ackney

Certified AppSec Practitioner ||Penetration Tester || SSCP || Incide?t Response || CNSP ||CTF Player || THM 1% || Security Analyst
举报内容
Determine the extent of data loss by evaluating: Affected files and folders: Identify the specific data you need to recover. Severity of damage: Assess if the data is completely lost, corrupted, or partially accessible. Urgency of recovery: Prioritize data based on its criticality and business needs.

已翻译

赞

3 Choose the appropriate recovery method

The third step to recover data from a failed server is to choose the appropriate recovery method, based on the cause and impact of the failure, and the backup methods you use. There are different types of backup methods, such as full, incremental, differential, or snapshot backups, and different backup media, such as tape, disk, cloud, or hybrid backups. Depending on your backup method, you may be able to recover data from a failed server by restoring from a recent backup (the simplest and fastest way if you have a reliable and up-to-date backup available), recovering from a RAID array (using RAID recovery software or hardware to rebuild the array and access the data), recovering from a file system (using file system recovery software or tools to scan the disk and recover lost or damaged files/folders), or using a data recovery service (which specializes in retrieving data from damaged or inaccessible disks/servers but can be expensive/time-consuming). Restoring the entire server or specific files/folders depends on your backup configuration and recovery objectives; you may need to use a bootable media/recovery console to access the backup and restore it to the original/new server; connecting the disk to another computer or using a live CD/USB may be necessary to run the recovery software/tools. Reporting and documenting the incident will help inform/reassure stakeholders as well as provide valuable insights for improving your cloud security posture.

添加您的观点

Gideon Ackney

Certified AppSec Practitioner ||Penetration Tester || SSCP || Incide?t Response || CNSP ||CTF Player || THM 1% || Security Analyst
举报内容
Depending on the cause and impact of the failure, various data recovery methods might be suitable: Backups: If you have a recent and functional backup, restoring data from the backup is the most efficient and reliable method. Data recovery software: Specialized software can attempt to recover data from damaged hard drives or corrupted files. This approach is successful in some cases but is not guaranteed. Professional data recovery services: In critical situations involving severe data loss or complex damage, professional data recovery services might be necessary. They offer specialized expertise and tools for recovering data from even severely damaged storage devices.

已翻译

赞

4 Verify the recovered data

The final step to recover data from a failed server is to verify the recovered data and ensure that it is complete, accurate, and functional. You can use checksums, hashes, or file comparisons to verify the integrity and consistency of the recovered data. You can also test the recovered data by opening, running, or modifying it, and checking for any errors or anomalies. You should also backup the recovered data to a secure and reliable location, and update your backup and recovery plan to prevent or mitigate future data loss.

添加您的观点

Gideon Ackney

Certified AppSec Practitioner ||Penetration Tester || SSCP || Incide?t Response || CNSP ||CTF Player || THM 1% || Security Analyst
举报内容
Verify the recovered data: Once you recover the data, thoroughly verify its integrity using file comparison tools or opening critical files to ensure they are functional and complete.

已翻译

赞

5 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

添加您的观点

Gideon Ackney

Certified AppSec Practitioner ||Penetration Tester || SSCP || Incide?t Response || CNSP ||CTF Player || THM 1% || Security Analyst
举报内容
Minimize further risk: Power down the failed server to prevent further damage and data loss while awaiting recovery efforts. Document the process: Maintain detailed records of the recovery process, including the cause of failure, actions taken, and the outcome. This information will be valuable for future troubleshooting and preventing similar incidents. Implement a robust backup strategy: Regularly back up your server data to a secure and separate location to minimize the risk of data loss in future incidents.

已翻译

赞

Computer Networking

+ 关注

给文章评分

我们借助人工智能创建了此文章。您认为这篇文章怎么样？

很棒不太好

举报此文章

查看全部

What are the best ways to recover data from a failed server?

1

2

3

4

5

1 Identify the cause of failure

2 Assess the impact of failure

3 Choose the appropriate recovery method

4 Verify the recovered data

5 Here’s what else to consider

Computer Networking

给文章评分

感谢您的反馈

更多Computer Networking相关文章

更多相关阅读内容

What are the best ways to recover data from a failed server?

1

2

3

4

5

1 Identify the cause of failure

2 Assess the impact of failure

3 Choose the appropriate recovery method

4 Verify the recovered data

5 Here’s what else to consider

Computer Networking

给文章评分

感谢您的反馈

查看其他技能