Case:
The dual -machine thermal preparation made by the customer is: IBM DS3512, a total of 6 hard disks, each capacity: 1T.The database is: SQL Server 2005 disk array cabinet suddenly power out, power is charged, and the server cannot access the cabinet.Customers asked IBM after -sales engineers to the scene. After testing the initial IBM storage management software, DS3512 could not be managed. After some failure elimination, it was most accessible. It was found that the No. 4 hard disk had been offline. All other hard disks were Ready.IBM after -sales engineers told customers that they could only replace the hard disk for free, and they could not help the data.Data is crucial to customers, and customers have given up on IBM after -sales engineers.
Solution:
Our engineers analyzed the analysis of 6 hard disks. After analyzing the 6th hard disk as a thermal disk, the No. 4 hard disk has been offline, the hot -preserved hard disk has been launched instead of the No. 4 hard disk. When the entire RAID5 is synchronizing, the power is suddenly lost.Analyze the RAID5 to storage method, the size of the block is 128K, and the first verification disk is No. 5 hard disk. Remove the offline hard disk, directly virtual reorganization, and export all the data of customers, a total of 791G.