how to recover data from external hard disk not detected

Unfortunately, when a hard disk in a PVFS cluster breaks down, all data will be lost. PVFS recommends that each node use two hard disks for hardware RAID 1, which can be avoided. At the software level, PVFS does not provide raid-related functions. Here is a reply from the PVFS developer, who clearly wrote why PVFS does

Annie Zeng The door makes people very nervous about data security, even if delete + empty Recycle Bin, files and data can still be restored. Because the data is still on the hard drive, it's just tagged: "Hey, OS, this place has data, but you can write new files to overwrite

Recently, the vijin variant virus has been raging, and many people are forced to format all the partitions after recruitment, so the hard-to-save data is destroyed. The virus is characterized by a slow system response. When playing online games, the system automatically exits, and the EXE file icon in the hard disk cha

the method of Win7 system to encrypt hard disk to protect data security The specific methods are as follows: 1, we first click on the Start menu to open the Control Panel; 2. We first switch the view mode in Control Panel to large icon, then click BitLocker Drive Encryption; 3, in this window will let you choose, you want to encrypt th

To upgrade the redis version, you need to stop the original redis, so will the data be automatically saved to the hard disk after redisshutdown? To upgrade the redis version, you must stop the original redis, So will redis automatically save data to the hard

The system adds a hard drive. To create a new partition/data folder, MySQL for Data folder/var/lib/mysql1. Stop MySQL Repair[[Email protected]~]# service MySQL StopShuttingdown MySQL ... success![[Email protected]~]#2. Move the MySQL original data file to the MySQL folder of the new

"Huadu Xinhua"--Computer reload, hard disk data recovery, mobile phone repair, monitoring installationComputer Reload: 25 RMBScan two-dimensional code contactNumber chenyiz1990650) this.width=650; "src=" Https://s4.51cto.com/wyfs02/M02/07/32/wKiom1nEvvTxcIKlAACd-Fljpis789.jpg "title=" 10032.jpg "alt=" Wkiom1nevvtxciklaacd-fljpis789.jpg "/>This article is from "Hu

Tags: type image. com sha Desktop Carriage return proc term homeJune Assessment: How Linux copies data to a mobile hard disk1. Telnet to the system interface using putty2. Use the fdisk-l command to see if a USB flash drive is identified, and where the USB drive is identified3. The current access to see the location of the U disk is/DEV/SDB14. Then enter the Moun

Random replication hard disk, can prevent the general data recovery???1#include 2#include 3#include string.h>4 5 #defineFile_size (1024 * 1024 * 1)6 #defineFile_count (1 * 100)7 #defineFck_loop (3)8 9 intMainvoid)Ten { OneFILE *FP =NULL; A Charfile_name[ +]; -UnsignedChar*data =NULL; - intI, J, Len, Fck_loop; t

(Domestic version)After several days of continuous research on ADO. net, and found another good function... That is, how to use it (if there is no error, related functions are also available in ado !)Writwxml,WritexmlschemaExport the data and schema structure in the datatable to the XML file on the hard disk, or useReadxml,ReadxmlschemaLoad the

Problem: Some data in my server need find out to copy to the mobile hard disk, and keep the original directory structure, find./-name ' * '-exec cp-v--parents {}/mnt \; I wrote that,./Sub-directories will be created in/mnt, the problem is that I need to create a subdirectory in the/mnt/to build another directory data,

Server2000, SqlServer2005, SQL2008 database sysobjects and other system table corruption can not be applied in the case of recovery.7. The SQL Server database recovers only if the data files do not have any logs .8. The recovery of SQL Server data files is deleted by mistake.9, SQL Server2000, SQL Server2005, SQL2008 database master database is corrupted and cannot be resumed under normal operation conditi

Kernel-related parametersRelevant kernel parameters, if conditions can be modified parameter test validation.1,/proc/sys/vm/dirty_ratioThis parameter specifies how much of the file system caches dirty pages (such as 10%), and the system has to start processing the cache dirty pages (because the number of dirty pages is already more, in order to avoid data loss need to brush a certain dirty page into external