http://blog.oracle-ninja.com/2011/07/exadata-storage-expansion-rack/
Three versions of the Exadata Storage Expansion Rack are available. From the Full Rack configuration with 18 Exadata Storage Servers; to the Half Rack with 9 Exadata Storage Servers; to the Quarter Rack system with 4 Exadata Storage Servers; there is a configuration that fits any application.
All three versions of the expansion rack are delivered with the same 2 TB High Capacity SAS disks, and Exadata Smart Flash Cache, available in the Exadata Database Machine.
Exadata Storage Expansion Quarter Rack : 96 TB of raw disk data capacity
Rownum quiz
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Here’s a silly little puzzle that baffled me for a few moments until I
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