Server data recovery is to recover the lost or damaged data as much as possible through a series of operations and tools when the server suffers from hardware or software failure, data loss or damage. Here are some common server data failure causes and recovery methods:

Hard disk failure:

Cause: The hard disk may be faulty physically, logically, or the file system may be damaged.

Recovery solution: Using professional data recovery tools or services, you may need to connect the hard disk to a dedicated data recovery device for data recovery.

File system corruption:

Cause: File system corruption may cause data inaccessible.

Recovery scenario: Repair using a file system repair tool or, in some cases, restore data by backing up an uncorrupted file system.

Delete or format by mistake:

Cause: The user deletes the file or formats the storage media by mistake.

Recovery scenario: Try to retrieve data from formatted storage media using data recovery software, or restore using a recent backup.

RAID failure:

Cause: The hard disk in the RAID array is faulty or the RAID controller is faulty.

Recovery solution: Replace the damaged hard disk and rebuild the RAID array. For more serious failures, a professional RAID data recovery service may be required.

Operating system failure:

Cause: The operating system is damaged or startup error occurs.

Recovery solution: Restore the operating system using the operating system installation media or recovery partition, or restore the operating system using the backup.

Virus or malware attacks:

Cause of failure: Viruses or malware may cause data corruption or encryption.

Recovery plan: Run anti-virus software to remove the virus and try to restore the affected data using the backup.

Power failure or hardware failure:

Cause: Hardware faults, such as the power supply or memory.

Recovery solution: Replace the faulty hardware components and restore the system.

Database failure:

Fault causes: database damage, transaction log errors, etc.

Recovery scenario: Repair using database management tools, or restore data from a database backup.

Regardless of the method used, appropriate measures can be taken before data recovery to prevent further damage to the data. Backup is a powerful way to prevent the loss of books, and can quickly restore data in the event of a failure. Regular testing and verification of backup integrity and availability is also an important measure.