PowerOne uses Boot Optimized Storage Solution (BOSS) for the compute sleds operating system.
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 an x8 connector using PCIe gen 2.0 x2 lanes.
BOSS uses two 240-GB M.2 SATA Drives.
No other local storage (PERC, IDSDM, or vFlash) is used as part of PowerOne. This includes storage sleds such as MX5016 in the MX7000 chassis. Storage domain provides 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.