Dell PowerEdge R940 - Internal Persistent Storage

R940 PERC controller is the Harpoon-based Premium Performance tier oering. This high-end oering will drive IOPs performance and
enhanced SSD performance.
Table 10. PERC series oerings
Performance level Controller and description
Entry S140 (NVMe, M.2 SATA)
SW RAID SATA
Value H330+, 12Gb SAS HBA (External) Fury IOC
Memory: None
x8 12 Gb SAS
x8 PCIe 3.0
Premium performance H740P, H840 Harpoon 8x8 ROC
Memory: 4/8GB, NV 72-bit
Internal persistent storage
The PowerEdge R940 oers two internal persistent storage:
• Lifecycle Controller 3.0
• IDSDM/vash module
• Boot Optimized Storage Subsystem (BOSS)
Lifecycle Controller 3.0
For more information on Lifecycle Controller 3.0, visit Dell Lifecycle Controller integration for conguration manager.
IDSDM/vash module
This module contains the Internal Dual SD Module (IDSDM) and vash card that are combined into a single card module. There are two
SKUs available:
• vash
• vash + IDSDM
The IDSDM with vash module has a dedicated slot at the back of the system chassis. This is a Dell-proprietary PCIe x1 slot that uses a
USB 3.0 interface to host. In the system, the IDSDM and vash card size changes from SD to microSD and the supported capacity for
IDSDM microSD cards are 16 GB, 32 GB, or 64 GB, while for vash the capacity is 16 GB only. The write-protect switch is built onboard the
IDSDM/vash module.
Boot Optimized Storage Subsystem (BOSS)
BOSS is oered as a means of booting 14G servers to a full OS in the following scenarios:
• A solution such as IDSDM may be desired, but the target OS is a full OS (not just hypervisor).
20
Storage