Archive for August 19th, 2008

RAID Groups and Aggregates

In the course of teaching Netapp’s Data ONTAP Fundamentals course I have noticed that one of the areas that student’s sometimes struggle with are RAID groups as they exist in Data ONTAP.
To begin with, Netapp uses dedicated parity drives, unlike many other storage vendors. Parity information is constructed for a horizontal stripe of WAFL […]