Oracle Exadata: How to check if Flash Cache is Write Back or Write Through

This is one of the questions which newbee's into exadata ask me quite often that how to know if flashcache is Write Back or Write Through.

Well the answer is pretty simple and this is how you check it. 

Log into cell server on which you want to know and run below 

# cellcli -e list cell attributes flashcachemode

         WriteBack

Or if you want to see for all cells you can use dcli 

# dcli -l root -g cell_group ' cellcli -e list cell attributes flashcachemode'

myexaexcel01: WriteBack

myexaexcel02: WriteBack

myexaexcel03: WriteBack

myexaexcel04: WriteBack

myexaexcel05: WriteBack

myexaexcel06: WriteBack

myexaexcel07: WriteBack

myexaexcel08: WriteBack

myexaexcel09: WriteBack

myexaexcel10: WriteBack

myexaexcel11: WriteBack

myexaexcel12: WriteBack

myexaexcel13: WriteBack

myexaexcel14: WriteBack

myexaexcel15: WriteBack