A summary of the data recovery case for a VMware ESX server that took over a few days ago
[Data recovery failure description]
Sinopec Branch of a province, information management platform, several ESX server share an IBM DS4100 storage, about 40~50 group of virtual machines, occupy 1.8TB space,
As an operational personnel, to ensure that the security of data is the fundamental responsibility, so in the maintenance of the system, to be cautious, but sometimes it will inevitably occur when the data is mistakenly deleted, at this time to change how to quickly and effectively recover data? In this article, we will introduce several
12 Linux Recovery Tools
Computer crashes, hard disk crashes, and a huge amount of money is spent on an emergency protector ...... This is the dark side of computers.
The time has been walking like this, walking around, maybe some days back. It is meaningless to be so worried about the loss caused by computer damage. On the contrary, using the right tool will minimize the loss.
Do you accidentally delete yo
I. OverviewAs an operator, to ensure that the security of the data is the fundamental responsibility, so in the maintenance of the system, to be careful and careful, but sometimes it is inevitable that the data was mistakenly deleted, this time how to quickly and effectively recover data?1.1. How to use the RM–RF commandUnder the
Only data is the most critical on the computer, and data loss is the biggest loss. Next I will explain some basic data recovery knowledge.
First of all, for important data, backup data is the fundamental method to prevent
Two data recovery software TestDisk and PhotoRec-Linux general technology-Linux technology and application information, the following is a detailed description. Two data recovery software are introduced: TestDisk and PhotoRec. Amo
Hard Disks and data are priceless. Nowadays, more and more users have such a concept, but they will feel it only when there is a real data crisis. Even though computer data stored on various disks is so important, however, due to technical and technological reasons, any storage device may be damaged. Changes and deterioration of the operating environment, illegal
and recovery functions are complicated to implement, so it must spend more time and energy than Microsoft's databases to test backup and recovery policies. However, it is relatively more flexible.Logical backup and recovery are unique functions of Oracle databases. Logical backup and recovery refers to the use of tool
By men/CVC. GBData Recovery has always been a concern because your computer data is threatened by viruses, malicious code, hackers, and misoperations every day! So how can we restore your data? I hope this article will help you!
I. Theory
It is not easy to learn data recovery
EXT2 file system is supported. For DOS, the file system supports Fat 12/16/32, NTFS 4/5/5.1.4. If the file system is ext2 (invalid for ext3):The deletion mechanism of ext3 is to delete inode data directly, so ext3 cannot be undelete (EXT3 is designed to not recover deleted files).UnrmExt2edDebugfs (Undel Lsdel)RecoverMidnight Commander (MC)E2undelTct5. If the file system is FAT32 or NTFS:EasyrecoveryFinalD
Testdisk can be used to recreate a partition table to restore lost partitions.Photorec can restore various types of filesTestdisk is opensource software and is licensed under the terms of the GNU General Public License (GPL ).TestdiskIsPowerfulFree data recovery software! It was primarily designed to helpRecover lost partitionsAnd/orMake non-booting disks bootable againWhenThese symptoms are causedFaulty So
1 HD movie format before and after the file system is one of the Ntfs/exfat/fat32, and the format of the HD movie file size and location has not changed.
2 If the file system is one of the Ntfs/exfat/fat32 before the HD movie file, but the formatted partition has changed, please select "Partition Restore"
3 If the file system before and after the format of the HD movie file is not
12 Linux System Recovery toolsComputer crash, system crashes, will always bring a certain loss to computer users. Did you accidentally delete your souvenir picture? When you install a new system, erase the partition table? Can't read the data from the old CD? We will recommend some free system first aid tools to help you get out of your misery.AD:Computer crashes
very much, roughly easyrecovery, Recover, Lostfound, FinalData, Disk Recover and so on, there are many other, do not enumerate. Some of these software run under DOS mode, some can run under Windows mode, and can even run under nt/2000 to handle the data lost in NTFS-formatted partitions. The software mentioned above has a pretty good effect for mistakenly deleting, error formatting, and no other
Article title: linux fault recovery skills. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
Author: Arthur Reid
No matter what operating system you are running, in many cases, yo
Data Recovery Technical notes
first, the basic noun
Abbreviations
English
English
Dos
Disk Operating System
Disk Operating System
Mbr
Main Boot Record
Master Boot Record
LBA
Logical Block Address
Logical Block Address
Dpt
Disk Partition Table
Hard disk partition Table
EBR
Extended Boot
recovered.
Cold backup
Backup:1. Stop the mysql service and back up mysql data files at the operating system level.2. Restart the mysql service and back up the binlog generated after restart.Recovery:1. Stop the mysql service and restore mysql data files at the operating system level.2. Restart the mysql service and use mysqlbinlog to restore the binlog since the backup.
Logical backup
Backup:1. When the s
been made a secure backup, repair in the same time directly rebuild the first set of VMFS volume header, index list, partition table and other information, directly attached to the ESX server environment, is considered a second scenario.After two days of hard work, the data was successfully restored, thanks to the efforts of the engineers.Other1, in this case is still due to the optical fiber environment mutex improper cause of the problem, in fact,
table you are thinking of. Such as:14.OK to this mistakenly deleted file recovery success, experimental success.Summarize:In the whole process, the following points need to be noted:1. The order of installing dependent packages cannot be wrong2. Need to install GCC gcc-c++ compiler3. Take care of the path when performing, compiling, and installing the recovery software4. In the actual work, do not accident
next line restores all transactions from the given starting position until the end of the binary log. Because the output of Mysqlbinlog includes a set TIMESTAMP statement before each SQL statement is recorded, the recovered data and the associated MySQL log will react to the original time of the transaction execution. 5 Other methodsfor a standard installation of MySQL, full recovery of lost
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