Case:
The customer is two IBM X3650 servers and a dual -machine thermal preparation made by an IBM DS300 disk cabinet. The operating system is: Windows Server 2003 database: SQL Server 2000 Cabinet has a total of 7 SCSI hard disks, and the hard disk is 73G.The customer said raid5.It is very important to run a business database.The server suddenly could not access the cabinet, and the customer tried a variety of methods and could not solve it.
Solution:
Our engineers take the hard disk to the special hard disk mirror image on the dedicated work machine, and the mirror time is 3 hours.It is found that the No. 4 hard disk has a small amount of bad ducts, and other hard disks are fine.Analysis of 7 hard disk mirrors, after half an hour of analysis and calculation, the original disk, sequence, block size, rotation direction, different or methods, and RAID start sector parameters.The RAID5, No. 0 and No. 1 hard disk composed of 5 hard disks are offline, and the hard disks No. 5 and 6 are scored to be launched.Zuo Difang’s RAID5 has three partitions. The first partition is the arbitration tray for Microsoft dual -machine. There is no user data.Second, the three partitions, there are customers’ database.All data is directly restored, and the personnel of the customer software development company have verified, 100%correct.