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Green low-profile PCIe card with one SFF-8643 internal connector and a heatsink

Microsemi

Microsemi 2291700-R SmartRAID 3101-4i RAID controller

SKU CH-1484-1JRCQ MPN 2291700-R

Low-profile PCIe 3.0 x8 RAID adapter with 12 Gb/s SAS/SATA connectivity, 1 GB DDR4 cache and mixed-mode support

  • Part2291700-R
  • Form FactorLow Profile
  • TypeSATA / SAS
  • Internal Connectors1 x SFF-8643 mini-SAS HD
  • InterfacePCI-Express 3.0 x8
  • Transfer RateUp to 12Gb/s
  • 12 Gb/s SAS/SATA throughput for fast storage access
  • PCI-Express 3.0 x8 interface provides high bandwidth to the host
  • 1 GB DDR4 cache at 2100 MHz accelerates read and write operations
  • Mixed Mode runs RAID and HBA devices on the same adapter simultaneously
  • Low-profile MD2 form factor fits 2.54" x 6.60" spaces in dense servers

Adaptec SmartRAID 3101-4i controller

The Microsemi Adaptec SmartRAID 3101-4i is a low-profile PCIe 3.0 x8 RAID adapter with one internal SFF-8643 mini-SAS HD connector. It supports up to 12Gb/s transfer rates for SAS and SATA drives and includes 1GB of DDR4 cache memory operating at 2100 MHz. The card is designed for enterprise servers requiring hardware RAID with broad operating system compatibility.

Suits RAID arrays and HBA mixes.

This adapter fits builders who need internal RAID 0, 1, 5, 6, 10 or 50 plus the ability to run RAID and HBA devices together on the same controller through Mixed Mode. The maxCache 4.0 software and Advanced Data Management features help migrate data from existing arrays. Servers that require external SAS ports or more than four internal lanes will need a different adapter or an expander.

Single internal SFF-8643 mini-SAS HD port

The sole internal connector is a single SFF-8643 mini-SAS HD port carrying four 12Gb/s lanes. Verify that your backplane or drive cage uses this exact interface and that the server provides a PCIe 3.0 x8 slot with the low-profile form factor.

Highlights

  • 12 Gb/s SAS/SATA throughput for fast storage access
  • PCI-Express 3.0 x8 interface provides high bandwidth to the host
  • 1 GB DDR4 cache at 2100 MHz accelerates read and write operations
  • Mixed Mode runs RAID and HBA devices on the same adapter simultaneously
  • Low-profile MD2 form factor fits 2.54" x 6.60" spaces in dense servers

Specifications

BrandMicrosemi
SeriesAdaptec SmartRAID
Model3101-4i
Part2291700-R
Form FactorLow Profile
TypeSATA / SAS
Internal Connectors1 x SFF-8643 mini-SAS HD
InterfacePCI-Express 3.0 x8
Transfer RateUp to 12Gb/s
Cache Memory1GB DDR4 / 2100 MHz
Operating Systems SupportedMicrosoft Windows
Red Hat Linux
SUSE Linux
Debian Linux
Ubuntu Linux
Solaris
FreeBSD
VMware ESXi
Citrix XenServer
Dimensions2.54" x 6.60" (H x L)
FeaturesmaxCache 4.0 caching software (all SmartRAID 315x products with cache protection)
Mixed mode allows devices connected to the same adapter to be used in RAID and HBA modes simultaneously
Adapter dynamic power management to save up to 30% power
Supports up to 256 SAS or SATA devices using SAS expanders
Support for native 4K sector SAS and SATA devices in addition to 512-byte sector devices
RAID ADM through triple mirroring, move array, and split mirroring
Quick initialization
Online capacity expansion
Copyback hot spare
Dynamic caching algorithm
Native command queuing (NCQ)
Background
Package ContentsSmartRAID 3101-4i adapter
Additional low profile vented bracket
Shipping weight0.37 kg
Package size305 × 254 × 38 mm

Questions about this item

What internal connector does the 2291700-R SmartRAID 3101-4i use for its four SAS/SATA ports?

It uses a single SFF-8643 mini-SAS HD connector that carries four lanes at up to 12 Gb/s each.

What bracket and slot space does the low-profile MD2 card need?

It fits a low-profile slot and includes a vented bracket; board dimensions are 2.54" x 6.60".

How is the 1GB DDR4 cache module installed, and what step is often missed?

The cache is soldered on the board, so no module installation is required; the step often missed is enabling the cache in the BIOS/UEFI and installing the maxCache 4.0 software for write-back protection.

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