Hard Disk Drive Capacities
Hard Disk Drive Capacities
With a server, it is important to understand the implications of hard
disk drive capacities and how they influence the way you create disk
arrays. Different capacity drives are treated as if they all have the
capacity of the smallest disk drive.
Therefore, if you have four drives of 1GB, 1GB, 1GB, and 2GB grouped in one
disk array, the total capacity of the array is 1GB times 4, or 4GB (instead
of the 5GB physically available).
NOTE: If the model came with two 1GB hard disk drives and you
install a 2GB hard disk drive to create a RAID level 5 disk array, the total capacity of the array is
3GB instead of 4GB. Therefore, when creating arrays it is wise to add drives of equal capacity .
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