PowerOne uses Boot Optimized Storage Solution (BOSS) as the operating system for compute sleds. BOSS is a simple RAID solution card that is designed specifically for booting the operating system, which supports up to two 6-Gbps M.2 SATA drives. This card has a x8 connector using PCIe gen 2.0 x2 lanes. The BOSS uses two 240-GB M.2 SATA drives.
Apart from BOSS, no other local storage is used as part of PowerOne. The storage domain consists of external storage arrays that provide all storage except for the boot partition on the BOSS.
After shipment modifying the composition of the compute sled by adding components, such as hard drives, may cause an Invalid Configuration state of the compute sled in PowerOne. To return the compute sled to an In Service state in PowerOne, remove the additional components of the compute sled that were added after shipment.