My personal experience with TCB has been that it provides little benefit. If you must install it, then I wouldn't bother configuring it unless you know what you want to do with it.
Generally speaking I don't think you'll see any I/O issues. Of course, it can depend on things like your I/O config in terms of number of disks and adapters and your file system and LV layout. But as...
No problem. At the time the Redbook was written, the fix for nimadm+cache & TCB was not available to customers. It was released some time after the Redbook was published, so the book missed out on...
Starting with AIX v5.3 TL6, with APAR IY87344 installed, you can perform migrations of TCB enabled systems if the caching option to nimadm is used. For those that...