Boot Optimized Storage Subsystem
The Boot Optimized Storage Subsystem (BOSS) is an alternative, high speed location to install the operating system. This ensures
that the drive based storage is not used by the operating system.
NOTE: The BOSS is recommended for non-virtualized operating systems. Virtualized operating systems are best
supported by the IDSDM.
BOSS is an half height PCIe M.2 SATA carrier card that installed on a PCIe slot to draw power and provide system management bus
sideband access into the BOSS's thermal eld replacement unit (TFRU). The TFRU controls BOSS's localized active cooling fan
solution and provide status to iDRAC. SATA data is exposed via the NPIO connector that is cabled to the system board or backplane.
Figure 23. Boot Optimized Storage Subsystem (BOSS)
Table 23. BOSS RAID controller features
Function/Feature Supported
Stripe size supported 64k
Conguration (HII) Yes
Full initialization No
Fast initialization Yes
NOTE: Performed on virtual disk creation by default.
Background initialization No
RAID0 No
RAID1 Yes
Single non-RAID Yes
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