hi guys i`m with a doubt... i have a server with ssd raid 10 array and hdd raid10 array ssd is faster for non sequencial read that's a fact when i change a table from one device to another and check query response histograms my doubt is... today i have myisam, aria, innodb and sometimes tokudb and spider at same server how could i easily select what table should be stored at ssd or hdd array? there's a "table space" to select if i want to use ssd or hdd instead of create table, and create symbolic links, or create table with data directory/index directory? i was thinking about something more easily understood like tablespace, but used by all engines something like create table blabla table space ssd create table blabla table space hdd what i'm doing today... i have many tables that i use normally and don't drop, these tables i can symbolic link to ssd or hdd, but all new tables i use hdd (they normally are temporary tables), i'm using innodb per file, tokudb i'm not using too much but i don't care about where it's today anyone with experience to help or ideas? -- Roberto Spadim