QUESTION OF THE WEEK:
Disk mirroring provides data protection in the case of disk failure because data is constantly updated to both disks, where each relies upon a common controller. However, there is an inherent problem in disk mirroring. What is it?
a. Drive reliability is eliminating the need for mirroring
b. Access to data is threatened if the controller fails
c. Data can't be mirrored remotely
d. Mirroring can't handle planned outages
e. Data sets can't be kept in synch