RAID5同时坏两块硬盘的处理办法(国外英文资料).docVIP

RAID5同时坏两块硬盘的处理办法 RAID5 also deals with two hard disks at the same time The way to do this is by trying to force online the back of the block, and then rebuild the raid, and then reusing the opportunity to replace the broken one and rebuild it. All of these are Online, but its best to change the bad one and rebuild it again. But not every time, you can force Online success. The data is completely destroyed if the first problem is forced ONLINE, and if the problem is redone. Typically, there is a very low chance that two or more hard drives in a raid 5 will occur at the same time, but that doesnt mean it wont happen. The most common case is a hard drive, which causes the server to crash when there is no discovery, or if it is not replaced in time. This time must be after analysis which piece of plate is wrong, because this piece of the data on the disk is the fresh, combined with the data of other hard disk in the RAID is complete, and can be used normally. One example of data recovery occurs when two hard disks in raid 5 fail Cheap Redundant Disk Array RAID (Redundant Array of Inexpensive Disk) is a kind of large capacity, high speed and high reliability of the external memory, is now in a variety of high-performance servers, workstations, and should be widely in large and medium-sized computer To use. RAID5 level of them no independent check disk parity disk array, using the data block and independent access to technology, can handle multiple access requests in parallel on the same disk that is suitable for access request frequent occasions, such as hospital information system (HIS). Due to the technical features: on a hard disk error, when inserted into the new hard drive, can use the information for the damage to the other hard disk data recovery, but when two pieces of hard disk errors, to restore data will have certain difficulty, has had the similar phenomenon in our hospital in recent. One, fail to reproduce Hardware configuration for our hospital: HP LH6000