This section contains the following topics on maintaining the Sun Blade Storage Module M2.
The optional components in the storage module (disks) are Customer Replaceable Units (CRUs).
The storage module itself is a Field Replaceable Unit (FRU), only to be replaced by Oracle service.
Devices described as hot-pluggable may be replaced without requiring a reboot of the host computer, however the device being replaced first needs to be isolated by the operating system to prevent host access during replacement.
Devices described as hot-swappable may be replaced without any kind of system preparation, reboot or shut down.