We have HDS VSP G400 with 64GB cache and we are using HDT/Active Flash, SI/TI, Encryption and True Copy. We have installed shared memory Extension1 and 2 and after installing it our cache size is too small . I have checked all these feature can be run using Extension 1 SM, Can I remove Extension 2 SM without deleting any thing like Pools/VV ?? Our Storage is 40TB useable.