I have a Master/Slave replication (using MySql 5.1 / InnoDB).
Currently both my master & slave are running on the same type of server (32 GB RAM, 2 x Intel Xeon 5520 Quad Core 2.26 GHz (8 cores)) and have the same type of configuration (in terms of innodb_pool_size etc.)
I am considering upgrading my master to a stronger machine (48GB RAM, 2 x Intel Xeon 5640 Six Core 2.26 GHz (12 cores)).
My question is: Is it possible to upgrade just the master (increase his buffer_bool_size etc.) and leave the slave at his current setup?