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R281-T91
End of Support2U 24-bay ARM server system
- Supports blockchain infrastructure
- 2 x Marvell® ThunderX2® CN9975 28-core ARM processors
- 8-Channel RDIMM DDR4 per processor, total 24 x DIMMs
- Dual 10Gb/s SFP+ LAN ports (QLogic® QL41102)
- Onboard Broadcom® SAS3008 controller
- 2 x 2.5" SATA in rear side, 24 x SAS/SATA hot-swappable HDD/SSD bays
- SAS expander with 12Gb/s transfer speed
- 8 x PCIe Gen3 expansion slots
- 2 x OCP Gen3 x16 mezzanine slots
- Aspeed® AST2500 remote management controller
- Dual 1200W 80 PLUS Platinum redundant power supply
Specifications
Dimensions (WxHxD, mm)
2U
438 x 87.5 x 730
438 x 87.5 x 730
Motherboard
MT91-FS1
CPU
2 x Marvell® ThunderX2® CN9975 ARM processors
64bit ARMv8 architecture
28 cores per processor, 2.0GHz, TDP 150W
16nm technology
64bit ARMv8 architecture
28 cores per processor, 2.0GHz, TDP 150W
16nm technology
Chipset
-
Memory
24 x DIMM slots
DDR4 memory supported only
8-channel memory architecture per processor
RDIMM modules up to 64GB supported
1.2V modules: 2666/2400/2133 MHz
- NOTE: GIGABYTE recommends that you follow the QVL when selecting memory modules to avoid any system compatibility issues
- NOTE: DDR4 2666 Mhz with 1DPC, DDR4 2400 with 2DPC
DDR4 memory supported only
8-channel memory architecture per processor
RDIMM modules up to 64GB supported
1.2V modules: 2666/2400/2133 MHz
- NOTE: GIGABYTE recommends that you follow the QVL when selecting memory modules to avoid any system compatibility issues
- NOTE: DDR4 2666 Mhz with 1DPC, DDR4 2400 with 2DPC
LAN
2 x 10Gb/s SFP+ LAN ports (QLogic® QL41102)
1 x 10/100/1000 management LAN port
1 x 10/100/1000 management LAN port
Video
Integrated in Aspeed® AST2500
2D Video Graphic Adapter with PCIe bus interface
1920x1200@60Hz 32bpp, DDR4 SDRAM
2D Video Graphic Adapter with PCIe bus interface
1920x1200@60Hz 32bpp, DDR4 SDRAM
Audio
-
Storage
Front side: 24 x 2.5" SATA/SAS hot-swappable HDD/SSD bays
Rear side: 2 x 2.5" SATA only hot-swappable HDD/SSD bays
Onboard Broadcom® SAS3008 controller
Onboard Broadcom® SAS35x36R expander
Bandwidth: SATAIII 6Gb/s or SAS 12Gb/s per port
- NOTE: GIGABYTE recommends that you follow the QVL when selecting hard drives, to avoid any system compatibility issues
Rear side: 2 x 2.5" SATA only hot-swappable HDD/SSD bays
Onboard Broadcom® SAS3008 controller
Onboard Broadcom® SAS35x36R expander
Bandwidth: SATAIII 6Gb/s or SAS 12Gb/s per port
- NOTE: GIGABYTE recommends that you follow the QVL when selecting hard drives, to avoid any system compatibility issues
SAS
Supported
RAID
RAID 0/1/1E/10
Peripheral Drives
-
Expansion Slots
Riser Card CRS2131:
- 1 x PCIe x16 slot (Gen3 x16 or x8), Full height half-length
- 1 x PCIe x8 slots (Gen3 x0 or x8), Full height half-length
- 1 x PCIe x8 slots (Gen3 x8), Full height half-length
Riser Card CRS2132:
- 1 x PCIe x16 slot (Gen3 x16 or x8), Full height half-length
- 1 x PCIe x8 slots (Gen3 x0 or x8), Full height half-length
- 1 x PCIe x8 slots (Gen3 x8), Full height half-length
Riser Card CRS2124:
- 1 x PCIe x8 slots (Gen3 x0 or x8), Low profile half-length
- 1 x PCIe x16 slot (Gen3 x16 or x8), Low profile half-length
2 x OCP mezzanine slots
- PCIe Gen3 x16
- Type1, P1, P2, P3, P4
- 1 x PCIe x16 slot (Gen3 x16 or x8), Full height half-length
- 1 x PCIe x8 slots (Gen3 x0 or x8), Full height half-length
- 1 x PCIe x8 slots (Gen3 x8), Full height half-length
Riser Card CRS2132:
- 1 x PCIe x16 slot (Gen3 x16 or x8), Full height half-length
- 1 x PCIe x8 slots (Gen3 x0 or x8), Full height half-length
- 1 x PCIe x8 slots (Gen3 x8), Full height half-length
Riser Card CRS2124:
- 1 x PCIe x8 slots (Gen3 x0 or x8), Low profile half-length
- 1 x PCIe x16 slot (Gen3 x16 or x8), Low profile half-length
2 x OCP mezzanine slots
- PCIe Gen3 x16
- Type1, P1, P2, P3, P4
Internal I/O
2 x Power supply connectors
2 x SlimSAS connectors
2 x SATA 7-pin connectors
1 x USB 3.0 header
1 x Front panel header
1 x HDD back plane board header
1 x PMBus connector
1 x IPMB connector
1 x Clear CMOS switch
1 x BIOS recovery switch
2 x SlimSAS connectors
2 x SATA 7-pin connectors
1 x USB 3.0 header
1 x Front panel header
1 x HDD back plane board header
1 x PMBus connector
1 x IPMB connector
1 x Clear CMOS switch
1 x BIOS recovery switch
Front I/O
2 x USB 3.0
1 x Power button with LED
1 x ID button with LED
1 x Reset button
1 x System status LED
1 x HDD activity LED
2 x LAN activity LEDs
1 x Power button with LED
1 x ID button with LED
1 x Reset button
1 x System status LED
1 x HDD activity LED
2 x LAN activity LEDs
Rear I/O
2 x USB 3.0
1 x VGA
1 x COM (RJ45 type)
2 x SFP+
1 x MLAN
1 x ID button with LED
1 x VGA
1 x COM (RJ45 type)
2 x SFP+
1 x MLAN
1 x ID button with LED
Backplane Board
Front side_CBP20O2: 24 x SATA/SAS ports
Rear side_CBP2020: 2 x SATA/SAS ports
Bandwidth: SATAIII 6Gb/s or SAS 12Gb/s per port
Rear side_CBP2020: 2 x SATA/SAS ports
Bandwidth: SATAIII 6Gb/s or SAS 12Gb/s per port
TPM
-
Power Supply[#1]
2 x 1200W redundant PSUs
80 PLUS Platinum
AC Input:
- 100-240V~/ 12-7A, 50-60Hz
DC Input:
- 240Vdc/ 6A
DC Output:
- Max 1000W/ 100-240V~
+12V/ 80.5A
+12Vsb/ 3A
- Max 1200W/ 200-240V~ or 240Vdc input
+12V/ 97A
+12Vsb/ 3A
System Management
Aspeed® AST2500 management controller
Avocent® MergePoint IPMI 2.0 web interface:
Avocent® MergePoint IPMI 2.0 web interface:
- Network settings
- Network security settings
- Hardware information
- Users control
- Services settings
- IPMI settings
- Sessions control
- LDAP settings
- Power control
- Fan profiles
- Voltages, fans and temperatures monitoring
- System event log
- Events management (platform events, trap settings, email settings)
- Serial Over LAN
- vKVM & vMedia (HTML5)
OS Compatibility
Compatible OS
RHEL 7.5 64bit (ARM64)**
Ubuntu 18.04 (ARM64)
SUSE SLES 15 (ARM64)
CentOS 7.6 64bit (ARM64)
Oracle Linux 7.4 (ARM64)
** GIGABYTE recommends to contact with us or our partners for further details
RHEL 7.5 64bit (ARM64)**
Ubuntu 18.04 (ARM64)
SUSE SLES 15 (ARM64)
CentOS 7.6 64bit (ARM64)
Oracle Linux 7.4 (ARM64)
** GIGABYTE recommends to contact with us or our partners for further details
System Fans
4 x 80x80x38mm (16'300rpm)
Operating Properties
Operating temperature: 10°C to 35°C
Operating humidity: 8%-80% (non-condensing)
Non-operating temperature: -40°C to 60°C
Non-operating humidity: 20%-95% (non-condensing)
Weight
Net Weight: 19.5 kg
Gross Weight: 28.92 kg
Gross Weight: 28.92 kg
Packaging Dimensions
982 x 588 x 268 (mm)
Packaging Content
1 x R281-T91 system
1 x Rail kit
1 x Rail kit
Part Numbers
Barebone package: 6NR281T91MR-00
Part Numbers:
- Motherboard: 9MT91FS1NR-00
- Rail kit: 25HB2-3A0202-K0R - CPU heatsink: 25ST1-353207-J1R - Back plane board_24-port: 9CBP20O2NR-00 - Back plane board_2-port: 9CBP2020NR-00 - Expander board: 9CEP26O0NR-00 - Front panel board: 9CFP2001NR-00
- Power supply: 25EP0-212002-F3S - RJ45 type COM cable: 25CR0-200400-Y4R (as an option)
- Riser card - CRS2131: 9CRS2131NR-00 - Riser card - CRS2132: 9CRS2132NR-00 - Riser card - CRS2124: 9CRS2124NR-00
- Rail kit: 25HB2-3A0202-K0R - CPU heatsink: 25ST1-353207-J1R - Back plane board_24-port: 9CBP20O2NR-00 - Back plane board_2-port: 9CBP2020NR-00 - Expander board: 9CEP26O0NR-00 - Front panel board: 9CFP2001NR-00
- Power supply: 25EP0-212002-F3S - RJ45 type COM cable: 25CR0-200400-Y4R (as an option)
- Riser card - CRS2131: 9CRS2131NR-00 - Riser card - CRS2132: 9CRS2132NR-00 - Riser card - CRS2124: 9CRS2124NR-00
[#1] Power cords are not included with server packages. Customers are responsible for selecting appropriate power cords from the optional accessories or contacting sales for customization.
[#2] All materials provided herein are for reference only. GIGABYTE reserves the right to modify or revise the content at any time without prior notice.
[#3] Advertised performance is based on maximum theoretical values as specified by the respective chipset vendors or standards organizations. Actual performance may vary depending on system configuration.
[#4] All trademarks and logos are the property of their respective owners.
