zfs data recovery

the content of the Enterprise test Environment usage Summary. Operating System CentOS7 The idea of restoring a database or a table: First, it is important to view the lost database The point to be aware of is to do the advantages and disadvantages of database recovery, restore the library in this period of time to the company's losses, or directly discard the library to the company's losses, according to their business situation to decide.If this is

Top data recovery skills: how to restore garbled files? What should I do if the data recovery file is garbled? Top data recovery software restores data based on different types of dele

Easyrecovery commonly known as "easy Recovery", is a professional level of data recovery software, for accidental deletion, mis-formatted or lost files can be easily retrieved. There are three versions, the Enterprise Edition is the most powerful, supporting almost all types of file recovery, but also support raid

Originating From: http://blog.chinaunix.net/uid-26602509-id-4102099.html Open the bin log feature of MySQL: for MySQL is also support incremental backup, but to open the Bin log feature of MySQL. We modify the MySQL configuration file. Linux is/etc/my.cnf,windows is the installation directory for MySQL/my.ini We add a log-bin line of code below [Mysqld], as below. [Mysqld] log-bin=Mysql-bin Copy CodeAfter the addition of the MySQL can be re-start.A customer update

Tags: mysql, data recovery, deletefirst of all, Please note the scope of this tool:1) The recovery tool for this application is only available with the InnoDB storage engine, MyISAM does not support2) Truncate Tabe cannot be restored3) Drop table, don't even think about it.Recovery principle:For the InnoDB storage engine, the delete operation, instead of actually

For the Ext4 file system data recovery software, see many online are introduced extundelete this tool, download the latest version of the experiment (in Centos5.8, Centos6.7 experimental results are not very good). Finally, it was found that Ext4magic is very powerful for EXT4 data recovery support. You can also do thi

1. Orion File Recovery Software Orion, it has a good guide and it can support you in scanning certain types of files. Of course, you can choose to do a regular scan, but if you know exactly what you're looking for, this feature can save a lot of time. 2. PC Inspector File Recovery This software can recover files from common hardware including hard drives, external drives, and memory cards. It

SQL Server recovery table-level data details, SQL Server details In recent days, the company's technical maintenance staff frequently asked me to restore the database, because they always have fewer where conditions, resulting in unrecoverable consequences for the update and delete operations, the libraries are dozens of GB. It takes less than 10 minutes to recover. For this reason, I have found some materi

1. Introduction There are two difficulties in realizing the function of tape backup data: first, ms SQL Server (SQL) the overall backup and recovery functions of the provided database cannot directly meet the requirements of the system for data rolling backup. Second, we need to solve how to implement the tape data bac

At this time, I found a good document for recovery and backup. I only wanted to start Oracle database development. So I only studied logminer. Others for the moment, but only excerpted some of them. Oracle availability plan: • Computer faults: Quick Start of fault recovery, real Application Clusters (RAC), data guard, Oracle streams• Storage faults: Automatic Sto

This experiment examines how to recover our database services in the shortest time when the database goes down and data is lost. RMAN planning hosttarget library catalog library ocm01ow.bocm02ocmdb02 a simulated ControlFile loss troubleshooting (Instance) We simulate control file loss failure and go forward This experiment examines how to recover our database services in the shortest time when the database goes down and

Tags: insert delete 1.5 size will require ACL run physical addressOracle recovery deletes a table or table record One: Recovery of the table to the wrong deleted table, as long as not using the Purge permanent delete option, then recover from the flash back area hope is quite large. General steps are: 1, from the Flash back query the deleted table select * from RecycleBin 2. Perform a table

oracle| Backup | notes | recovery | data Data backup Either way, the backup of the database is a backup of the data file/control File/redo file. 1, exp/imp Backup mode 2. Offline backup mode (offline Backup) 3, Online backup method (online Backup) 4, Standy mode of operation 1, exp/imp Backup mode (1) Order mode Can

Tags: run AST err full backup sequence you auto skill featureIn the daily operation and maintenance work, for the MySQL database permissions to evade, SQL Audit optimization, data backup recovery has become, the work necessary skills;The importance of the database to the website makes our management of MySQL data not be lost!Then, it is inevitable that people wil

Tags: Linux data recovery Ext4 file system fsckThere are several concepts that need to be understood before data recovery cases beginBlock group: The entire space of the Ext4 file system is divided into block groups, and the structure within each block group is roughly the same.Block Group Descriptor Table: each block

ALTER DATABASE Create datafile causes the original data file to be lost We have a client with a small system to recover, after Oracle Database Recovery Check detection We found a strange phenomenon in the Red box section 1. The head of the file is fuzzy No, does not conform to the database unusual crash common sense, also and other files this state does not match 2. File creation time, S

I. Discussion and understanding of redis persistence Currently, there are two methods for redis Persistence: RDB and Aof. First, we should clarify the usage of persistent data. The answer is to recover data after restart.Redis is a memory database. Both RDB and aof are measures to ensure data recovery.Therefore, when redis uses RDB and aof for

Install and use data recovery software extundelete in CentOS 6.5 Install and use data recovery software extundelete in CentOS 6.5 I. Installation (1) first extundelete software depends on e2fsprogs e2fsprogs-libs e2fsprogs-devel Software Package (2) download extundelete, official website is http://extundelete.sourcefor

The users of computer cognition are all aware that the empty files of the Recycle Bin only occupy the space of the hard disk is released, and its specific data is still stored in the computer, only the new data write to cover the space released by it, the empty files will be completely deleted. So under normal circumstances, we can not see the empty file, only through the

Have you ever handled the problem of data corruption or data loss on the hard disk? As a result, even though you are still in the process of diagnosing and analyzing the problem, the end user and manager have already contacted you and want to know the approximate time (ETA) for solving the problem. Do you want to have a simple and more important way to quickly diagnose and fix such faults? Continue to read