Case:The operating system is linux, the file system is XFS, and the model is 1T Hillary hard disk with ST31000528AS. DBA mistakenly thinks that the real -time library is mistaken for the backup library during the backup MySQL database.Delete all data Solution:The engineer backup the 500GB data partition.Analyze the XFS file system META data information…
Case:Poweredge R710. The disk system is RAID5 composed of SAS 1T*3.Linux system, after FSCK, the system cannot mount.After investigation, RAID5 is intact. After FSCK, the bitmap and descriptions in the first group group and the first block group are filled by garbage logs. The root directory in the first block is also filled by garbage…
Case:The Linux operating system, the file system is EXT3, the original RAID6 composed of 12 2T hard disks is stored. This storage has 3 LUNs, each of which is 6TB size.The storage weight of this failure is allocated to allocate RAID and initializes it.After the initialization is for a long time, the maintenance staff sees…
Case:The front of the hard disk is RAID information. This is NAS. The front 2G of RAID5 is the second partition of Linux switching partition is about 37G of Linux. The customer said that this is the Windows2003 operating system.Detailed analysis. Solution:Data recovery engineer made a mirror with a hard disk with a bad sector…
Case:A well -known design company Linux system server data recovery successfully, the data recovery center has successfully mastered the Linux array reorganization algorithm, and successfully overcome the reorganization difficulties of the loss of the partition table by the partition table, recover data for the successful recovery of various industries, and restore economic losses.The customer service…
Case:The customer company has a RHEL system, which is deleted by an important directory because of misunderstanding. This RHEL is stored as a RAID of 15 SAS disks and uses the LVM+EXT3 file system. Solution:After careful inquiries and analysis, we found that some data recovery feasibility.Immediately began to analyze RAID, reorganize RAID, and immediately mirror….
Case:The linux server suddenly crashed when it is high, and the system cannot enter the system after restarting Solution:The bottom layer of this Linux server is composed of two 73GB SCSI disks. It is made into RAID0. OS is RHEL 5.3, divided into two volumes, one/boot, one LVM, and LVM divided into two districts, one…
Case:When a customer inspects the server of a Linux operating system, the client mistakenly deletes the Oracle main database file on the server. Solution:When the customer contacts our center, we immediately asked the customer to shut down the server to avoid any operations to the server hard disk.After getting the customer’s hard disk, the hard…
Case:Linux operating system, EXT3 file system, RAID server interface type IDE hard disk, 5 disk RAID, a disk data is not synchronized, offline. Solution:1. Full backup of all non -heat -reserve hard disks with good running status to a safe storage with redundant functions, the hard disk that exists in physical problems must be restored…
Case:An important MySQL database server, 146GB*2, RAID1, about 130GB Data volumes, stored about 200 ~ 300 databases.After the administrator usually releases each database DUMP, it directly compresses it into a .gz package, and then all the important .gz packets compressed into a total .tar.gz package. These files were generated once a day to cover the…
