Interesting question posed by one of our twitter followers:
Since best practice is to match journal performance with production LUNs, is it recommended to place journals in a fast2 pool with auto tiering, fast cache etc?
Any inputs on best practices around this?
Thanks in advance,
Best Practice is not to use FAST for the Journal is that it will not benefit from it, because the Journal uses large sequential IO. This is not in the SSD sweet spot. Also, think of the Journal as a FIFO. You would just be shuffling things in and out of FAST.