How to confirm object has been pinned into exadata flash cache

Hi ,
Just wanted to confirm , if object has been pinned into flash cache
SQL>  select segment_name,cell_flash_cache from user_segments where cell_flash_cache='KEEP';
no rows selected
SQL> alter table scott.emp storage(cell_flash_cache keep);
Table altered.
SQL> select * from scott.emp;
SQL> select segment_name,cell_flash_cache from user_segments where cell_flash_cache='KEEP';
no rows selected.

As the author of the mentioned blog post, I should add a point of clarification:  unlike a shared-pool pin, setting cell_flash_cache to KEEP merely prioritizes the object for flash cache usage.  It's still possible to have all or some of the object on disk based on read patterns.  Prior to storage server 11.2.3.3.0 it was necessary to use KEEP for non-full scans to populate the cache, but that's no longer the case.  Since that change I've run into very few situations where CELL_FLASH_CACHE KEEP was required;  mostly the storage server does the right thing on its own.
Hope this helps!
Marc

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