What Is The Difference Between A Global Hot Spare & A Dedicated Hot Spare ?
Answer»
Global hotplate is available for the any array in the whole enclosure or Storage subsystem.
If there is an enclosure having 10 drives & we have 3 drives in RAID5(1st array) , 3 more drives in second RAID5(2nd array) & 2 more drives in RAID 1 CONFIG. We can specify in RAID config utility WHETHER a dedicated hot spare is assigned for 1st RAID5 array. If there is a drive failure in 2nd or 3rd array this dedicated hot spare will not be involved there. But if the array for which this is dedicated has any drive failure this dedicated hot spare TAKES over.