Storage controller specications
The PowerEdge R740xd2 system supports the following controller cards.
Table 5. Dell EMC PowerEdge R740xd2 system controller cards
Internal controllers External controllers Software RAID
• PERC H730P mini
• PERC HBA330 mini
• PERC H330
• 12 Gbps SAS HBA
• PERC H840
• S140 (SATA) - software RAID SATA
Internal Dual SD Module (IDSDM)
The Internal Dual SD Module (IDSDM) and vFlash card are combined into a single card module in the latest PowerEdge systems. The
following are options available for PowerEdge R740xd2 systems:
• vFlash only
• IDSDM only
• vFlash and IDSDM
NOTE: The IDSDM only option is available with vFlash hardware and requires an iDRAC Enterprise license to enable the
feature.
The IDSDM with vFlash module is installed in a Dell-proprietary PCIe x1 slot using a USB 3.0 interface as the host. In this generation
of servers, the IDSDM and vFlash card features microSD in place of an SD card The supported capacities for the IDSDM microSD
cards are 16/32/64 GB while for vFlash the capacity is limited to 16 GB only. The write-protect switch is built on the IDSDM with
vFlash module.
Boot Optimized Storage Subsystem (BOSS)
BOSS is oered as a means of booting 14G servers to a full OS when:
• A solution such as IDSDM may be desired, but the target OS is a full OS (not just a hypervisor)
• The user does not wish to trade o standard hot plug drive slots for OS install
• A separate hardware RAID is required for OS boot so that data drives can be in Passthrough mode with an HBA
BOSS is a PCIe card located at the rear of the system to support up to two 80mm or 110mm M.2 SATA or PCIe x1 devices.
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