More information about  ((raid 5EE))

Posted on 2006-05-23
Last Modified: 2010-04-03
If some provide me some good information about ((raid 5EE)) because I want to use in my exchange server 2003
it good idea or not
Question by:khaled_mct
    LVL 9

    Expert Comment

    It is IBM proprietory RAID5 with hot spare but rather than a physical hot spare it is a virtual spare made from reserved space within the disks of the array, see
    LVL 3

    Accepted Solution

    Multiple manufacturers offer this kind of disk structure. Some call it 5EE others call it distributed sparing.
    Using this kind of disk structure allows for a modest increase in volume performance and there are claims
    that it can increase the reliabilty of a system. I dont see any argument against using such a structure
    if all you have is one volume in your RAID system. If you have multiple RAID volumes in a given RAID
    enclosure or connected to a common RAID card then this kind of structure would result in less overall
    storage capacity.


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