Case:
The Dell server located in the telecommunications machine room is equipped with 10 300G server hard disks, including two sets of RAID1 installed operating systems, and 8 hard disks to make a set of RAID5 store key business databases.The group RAID5 is divided into two groups of VDs in the array card.The first is that the No. 4 of RAID5 arrays reported errors and damaged. The maintenance company has not had time to find the same model of the hard disk to replace it. The light yellow light warning appeared on the 3rd disk. The entire RAID5 status became Offline. The customer was the blood center database.It is necessary to restore important information.
Solution:
Out of consideration of data security, the leaders of your company asked us to recover on -site data. The entire recovery process was relatively smooth, and there were two episodes in the middle.The mirror that was successfully appeared after repairing; the other was to finally analyze. The position of the No. 4 and No. 3 was actually reversed. It should be that when someone dialed the hard disk after the failure, the disk was made.Finally, the data was successfully analyzed. A VD in front of this RAID5 was divided into 4 districts to store a large Oracle database. The 1600G Oracle database used cross -zone storage methods, and the 4 districts were basically filled.There is only one partition in the latter VD, which stores some backup files.The Oracle database is guided back to the original server, the customer tested the startup data, and the first time was launched. After a small adjustment and repair, it was launched normally.