QuestionsWhat is the difference between Disk Mirroring and Disk Duplexing?
Guest asked 1 month ago
1 Answers
winadmin Staff answered 1 month ago

Disk Mirroring: Disk Mirroring (RAID-1) is the practice of duplexing data in seperate volumes on two hard disks to make the storage more fault-tolerant. This provides data protection in the case of disk failure, because data is constantly updated on both the disks. However, since the disks rely upon a common controller, access to both copies of data is threatened if the controller fails.
Disk Duplexing: Duplexing is a variation of disk mirroring in which multiple storage disks has its own SCSI controller. The use of redundant controllers enables continued data access as long as one of the controllers continues to function.