how to recover formatted data from hard disk

Q: How long can the data of traditional magnetic disk and solid state hard disks be stored in normal circumstances? Answer: Although manufacturers generally claim that the hard disk to save data life of not less than 100,000 hour

. This mode reduces the loss of each file to be repaired byOpportunity, but it requires a lot of additional disk access. This is the safest and slowest log mode.Reservation (Ordered)Only changes to the file system metadata are recorded in the log. is the default logging mode.Write Back (Writeback)Do not perform any form of data logging.3, EXT4EXT4 has mainly made two optimizations to ext3:The first is the i

Although data occupies most of the space of the hard disk, but does not have the previous parts, it is only some binary code for the user, it doesn't make any sense. The point here is that our usual formatter does not erase the data area, but just rewrite the fat. As for the partition

Tags: mysql data movementThe system adds a hard disk, mounts the new partition to the/data directory, and the MySQL data file directory is/var/lib/mysql1. Stop MySQL Service[[Email protected]~]# service MySQL StopShuttingdown MySQL ... success![[Email protected]~]#2. Move th