Adding Mirror Set

[Ayman Altounji]

We have a Proliant DL380 comprised of an array with a Raid 1 mirror set of 2 x 36gb drives. We have the logical drive partitioned under NT into a C: and a D: drive. We would like to increase the capacity of the D: drive and have purchased 2 X 36gb drives. We would like to set these up as another Raid 1 mirror set. Would we add the drives and create another array with another Raid 1 mirror set (logical drive) and then in NT create an expanded volume set? If we do this, if one of the drives in either of the mirror sets fails we should still have redundancy even though the expanded volume is comprised physically of all the drives. Am I right?