Huan has brought through a computer institute, but recovery is not successful, identifying 4 drives, RAID 5 structure took 2 of 4 drive format, 1 hard drive imminent signs knocked down, after 1 day analysis overcoming structural Raid 5, entire data base MySql MISA accounting software, many file Vann contracts, accounting documents finalization tax reporting CONSTRUCTION COMPANY LIMITED - TRADING QUANG MINH completed 550GB recovery.