mdf file recovery

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

Today Sql-server database suddenly error:SQL Server detected a consistency-based logical I/O error checksum is incorrect (should be: 0x7c781313, but actually: 0X67A313C9). In the file ' C:\Program Files\Microsoft SQL Server\mssql.1\mssql\data\e_block_db.mdf ', the offset is 0x00000000a34000 in the location of the page in database ID 5 (1 : 1306) The error occurred during read execution. Additional messages in the SQL Server error log or the system eve

Oracle online log files record the logs of data block changes during database operation. After the database becomes corrupted or fails abnormally, you must use online logs (or archive logs, repeat the changes in the database.When the log file itself is damaged (lost), the database may not be able to open normally. In this case, the recovery test is conducted (for reference only ): Change redo log size) Orac

has professional management software database Repair technical engineer, professional to provide housekeeper, U.S. Ping, think fast, branch vein management software Technical services, computer repair \ re-install system technical Services. Unable to log on, and so on error processing (connection failure, enter the correct server name, SQL server does not exist or deny access, User sa login failure and so on), data corruption repair, software extranet remote access, annual balance, software vers

This article is a simulated test. The main steps are as follows:1. Perform rman full backup for the Test Database (nocatalog mode)2. Delete all files in the oradata \ orcl Directory3. Use rman for recovery.The detailed steps are as follows:1. Perform rman full backup for the Test DatabaseC: \ Documents Ents and Settings \ xGss2000> rman nocatalog target/Recovery Manager: Release 10.2.0.1.0-Production on Sunday, September 11, August 14 00:06:16 2011Cop

Article Title: Linux and Unix file system backup and recovery methods. 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. Backup target: User File or entire File System Key backup Prob

When you find that the file was mistakenly deleted or lost, do not go to frequent the loss of the file is the disk to erase the operation, to avoid the possibility of reducing the file recoverable. First we open 360 security guards, find the Feature encyclopedia area, click the "more" option. 1 Figure 1 360 security guards Under the Full-featured i

When you find that the file was mistakenly deleted or lost, do not go to frequent the loss of the file is the disk to erase the operation, to avoid the possibility of reducing the file recoverable. First we open 360 security guards, find the Feature encyclopedia area, click the "more" option. Figure 1 360 security guards Under the Full-featured inte

RMAN backup and recovery-parameter file Restoration In RMAN, "restoration" and "restoration" have different meanings. "restoration" refers to accessing the previously generated backup set to obtain one or more objects, then restore these objects at a location on the disk. Detached from restoration. Recovery is an actual operation that allows a database to be open

A The base of RMAN restoration and recovery In the use of Rman, restore and restore are two different concepts. Restore: Refers to accessing a previously generated backup, getting one or more objects, and then restoring those objects somewhere on the disk. Recovery (Recover): The actual process by which a database is consistent with a given point in time to ensure that the database can be opened, usually

Introduction to Computer D-Disk lost Video File recovery method Case: In our daily life, more and more electronic media files fill our lives. In such a fast-paced life, I believe that a lot of friends and small, like me, on weekdays will watch some movies and TV dramas to relax. By the platform, system and other restrictions, a lot of good TV movies need to come down to watch. Now the video is more and mo

Recently because of the busy work, coupled with the end of a lot of projects, there is no time to write Bo, today, a friend asked about the Windows 2003 shadow copies of the function, said is only a whole disk restore, from itself, when we look at the disk properties, this is the case, this Windows R2 , Windows R2 is different, in Windows R2 we can restore files directly in the disk properties, in fact, under Windows 2003 can also achieve file-level

\FTTEST01 ', ' E:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\USERS02. DBF ', ' E:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\ZXF1. DBF ', ' E:\ORACLE\PRODUCT\10.2.0\ORADATa\orcl\zxf2. DBF ', ' E:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\TZX01. DBF ' CHARACTER SET ZHS16GBK; 3.recover database; Restore Database 4. Open database alter DB open; Since Noresetlogs is recovered with the high SCN of the current log, there is basically no problem. IV: Using Resetlogs to perform control files and database

The onlineredo log file is very important to the database. When the current log file is damaged, it usually means data loss, but it is not absolute. The online redo log file is very important to the database. When the current log file is damaged, it usually means data loss, but it is not absolute. Online redo log

"User units"A branch of China Unicom"Data Recovery failure description"Sun Fiber Storage System, the central storage of 6 pieces of 300G hard disk RAID6, divided into several lun,map to different services on the server, the server runs the Sun Solaris operating system.In normal operation, the user needs to add a new application, so an IBM server is added, then a LUN in the store is mapped to the new IBM server in the online state, and unexpectedly, th

I. Basic Information OS: RHEL 3 CPU: 4 Intel (R) Xeon (TM) mp cpu 2.70 GHz Mem: 8 GB Swap: 16 GB Disk: 120 GB Oracle Database 10g Enterprise Edition Release 10.1.0.3.0Ii. Backup Mode The database runs in archive mode and supports multi-level Incremental backup of RMAN. The policy is as follows: Sets automatic backup of control files. A full database backup (including all the databases and read-only tablespaces) is performed every three months, and archiving logs are backed up. Perform a zero-lev

Data Recovery tips how to restore a computer file deleted During the use of computers, we often delete useless computer files, but sometimes important files may be deleted accidentally. If you just delete the file to the recycle bin, you just need to find the file in the recycle bin and restore it. But what if the rec

Now the U disk has become the most commonly used mobile storage devices, the advantages of the U disk is not elaborate, because these are the reason why we buy. The process of using a USB stick, there are always some problems, especially in the virus, formatting, operation errors, etc., these problems generally result in the loss of data stored on the U disk. With the increasing capacity of the USB drive, the trouble with data loss is increasing. Therefore, the Invincible data

a file in Windows Explorer, Windows puts the file in the Recycle Bin, and even if we empty the Recycle Bin (or do not start the Recycle Bin feature), the operating system does not actually erase the file's data. What Windows calls deletion actually simply changes the first letter of the file name to a special character, the cluster is then marked as idle, but t

Tags: install mount http. com Hive Summary Collection file system ASPDescription: Not necessarily effective, need to keep tryingFirst, lsofThe file has just been deleted and you want to restore it, try Lsof first.lsof | grep Data.file1 CP /proc/xxx/xxx/xx /dir/data.file1If the lsof cannot see the file, then recovery s