Wednesday, December 17, 2014

Exadata: Shared Server Connect Prevents Offloading To Storage Cells (Doc ID 1472538.1)

Interesting article:
no offloading (aka Smart Scan) is performed for sessions connected via Shared Server.
Because such sessions cannot use DirectRead which is required for offloading.
In is not a bug, it is a feature.


cellcli -e list diskmap

The interesting LIST DISKMAP command in the storage cells links all views to hard disks: PCI bus address as Name 252:5, OS name (/dev/sdh,...