Consider the following factors when moving hard disk drives (HDDs) between blades:
Moving HDD to another blade type. If the Solaris operating system is installed on the hard drive, you will need to reinstall the operating system. This requirement only applies when you move a hard drive from one blade type (such as X8400) to another blade type (such as X8420). For more information, see Chapter 7 in the Sun Blade 8000 Series Installation Guide or see Installing Solaris 10 in the Sun Blade 8000 Series Online Information System.
Moving HDD to another blade of the same type and slot. The I/O devices presented to the blade operating system might change. To help identify which I/O configurations might change, see Network Considerations When Moving Blades Between Chassis for more information.