Cisco UCS C225 M6 SFF Rack Server
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The Cisco UCS C225 M6 SFF Rack Server extends the capabilities of the Cisco Unified Computing System portfolio in a 1-Rack-Unit (RU) form factor with the addition of AMD CPUs as well as 16 DIMM slots per CPU for 3200-MHz DDR4 DIMMs with individual DIMM capacity points up to 256 GB. The maximum memory capacity for two CPUs is 8 TB (for 32 x 256 GB DDR4 DIMMs1).
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Description
Product overview
The Cisco UCS C225 M6 SFF Rack Server extends the capabilities of the Cisco Unified Computing System portfolio in a 1-Rack-Unit (RU) form factor with the addition of AMD CPUs as well as 16 DIMM slots per CPU for 3200-MHz DDR4 DIMMs with individual DIMM capacity points up to 256 GB. The maximum memory capacity for two CPUs is 8 TB (for 32 x 256 GB DDR4 DIMMs1).
There are several front drive and rear riser configurations, as listed below:
Front drives
● Option 1: Up to 10 SAS/SATA/NVMe drives (up to 4 of the drives can be NVMe)
● Option 2: Up to 10 NVME drives (All drives are NVMe)
Rear PCIe risers
● One to three half-height PCIe risers, or
● One to two full-height PCIe risers
The server provides an internal slot for one of the following:
● Cisco 12G RAID controller with cache backup to control SAS/SATA drives, or
● Cisco 12G SAS passthrough HBA to control SAS/SATA drives
Note: NVMe drives are controlled directly from the CPUs.
The UCS C225 M6 server has a single 1 GbE management port. A modular LAN on motherboard (mLOM) / Open Compute Project (OCP) 3.0 module provides up to two 100 GbE ports. A connector on the front of the chassis provides KVM functionality.
The Cisco UCS C225 M6 server can be used either as a standalone or as part of the Cisco Unified Computing System, which unifies computing, networking, management, virtualization, and storage access into a single integrated architecture, enabling end-to-end server visibility, management, and control in both bare-metal and virtualized environments.
Product specifications
Table 1. C225 M6 SFF specifications
| Capability / feature | Description |
| Chassis | One Rack Unit (1RU) chassis |
| CPU | One or two AMD Milan or Rome processors |
| Memory | 32 slots for Registered DIMMs (RDIMMs) or Load-Reduced DIMMs (LRDIMMs) |
| Multi-bit error protection | This server supports multi-bit error protection. |
| Video | The Cisco Integrated Management Controller (CIMC) provides video using the Matrox G200e video/graphics controller:● Integrated 2D graphics core with hardware acceleration● Embedded DDR memory interface supports up to 512 MB of addressable memory (8 MB is allocated by default to video memory)● Supports display resolutions up to 1920 x 1200 16 bpp @ 60 Hz● High-speed, integrated 24-bit RAMDAC● Single-lane PCI-Express host interface running at Gen 1 speed |
| Power subsystem | Up to two of the following hot-swappable power supplies:● 1050 W (AC)● 1050 W (DC)● 1600 W (AC)● 2300 W (AC)One power supply is mandatory; one more can be added for 1 + 1 redundancy. |
| Front panel | A front-panel controller provides status indications and control buttons. |
| ACPI | This server supports the Advanced Configuration and Power Interface (ACPI) 4.0 standard. |
| Fans | Eight hot-swappable fans for front-to-rear cooling |
| InfiniBand | The InfiniBand architecture is supported by the PCIe slots. |
| Expansion slots | Three half-height riser slots● Riser 1 (controlled by CPU 1):◦ One x16 PCIe Gen 4.0 slot (Cisco VIC), half-height, 3/4 length● Riser 2 (controlled by CPU 1):◦ One x8 PCIe Gen 4.0 slot, half-height, 3/4 length● Riser 3 (controlled by CPU 1):◦ One x16 PCIe Gen 4.0 slot (Cisco VIC), half-height, 3/4 lengthORTwo full-height riser slots● Riser 1 (controlled by CPU 1):◦ One x16 PCIe Gen 4.0 slot (Cisco VIC), full-height, 3/4 length● Riser 2 (controlled by CPU 1):◦ One x16 PCIe Gen 4.0 slot (Cisco VIC), full-height, 3/4 length |
| Interfaces | Rear panel:● One 1Gbase-T RJ-45 management port● One RS-232 serial port (RJ45 connector)● One DB15 VGA connector● Two USB 3.0 port connectors● One flexible modular LAN on motherboard (mLOM)/OCP 3.0 slot that can accommodate various interface cardsFront panel:● One KVM console connector (supplies two USB 2.0 connectors, one VGA DB15 video connector, and one serial port (RS232) RJ45 connector) |
| Internal storage devices | Drive storage:Drives are installed into front-panel drive bays, which provide hot-swappable access for SAS/SATA or NVMe drives. The server is orderable in two different versions:● UCSC-C225-M6S (option 1):◦ Up to 10 SFF SAS/SATA Hard Drives (HDDs) or SAS/SATA Solid State Drives (SSDs)◦ Optionally, up to four SFF NVMe PCIe SSDs (replacing SAS/SATA drives). These drives must be placed in front drive bays 1, 2, 3, and 4 only and are controlled from CPU1. The rest of the bays (5 – 10) can be populated with SAS/SATA SSDs or HDDs.● UCSC-C225-M6N (option 2):◦ Up to 10 SFF NVMe PCIe SSDs only. All drives are controlled from CPU1. Only one CPU is required when choosing NVMe SSDs.Other storage:● A ministorage module connector on the motherboard supports a boot-optimized RAID controller carrier that holds two SATA M.2 SSDs. Mixing different capacity SATA M.2 SSDs is not supported. |
| Integrated management processor | A Baseboard Management Controller (BMC) runs Cisco Integrated Management Controller (CIMC) firmware.Depending on your CIMC settings, the CIMC can be accessed through the 1-GE dedicated management port or a Cisco Virtual Interface Card (VIC).CIMC manages certain components within the server, such as the Cisco 12G SAS HBA. |
| Storage controllers | One Cisco M6 12G SAS RAID controller or up to two Cisco 12G SAS HBAs plug into a dedicated slot.Cisco M6 12G SAS RAID Controller with 4GB FBWC:● RAID support (RAID 0, 1, 5, 6, 10, 50, 60, SRAID0, and JBOD mode)● Supports up to 24 internal SAS/SATA drives● Plugs into a dedicated slotCisco 12G SAS HBA:● No RAID support● JBOD/Pass-through Mode support● Supports up to 16 SAS/SATA internal drives● Plugs into a dedicated slot |
| Modular LAN on Motherboard (mLOM)/Open Compute Project (OCP) 3.0 slot | The dedicated mLOM/OCP 3.0 slot on the motherboard can flexibly accommodate the following cards:● Cisco Virtual Interface Cards (VIC)● OCP 3.0 network interface card (UCSC-O-ID10GC) |
| Cisco Intersight | Cisco Intersight provides server management capabilities.Note: Cisco UCS Manager (UCSM) support is not available for this server. |
| Cisco Integrated Management Controller (CIMC) | Requires CIMC Release 4.2(1) or later |
| Operating temperature | Minimum 10°C to 35°C (50°F to 95°F) with no direct sunlight (If any A10, A100, or rear HDDs are installed, the 35°C (50°F) restriction changes to 30°C (86° F).)Maximum allowable operating temperature derated1C/300 m (1F/547 ft) above 950 m (3117 ft) |
| Extended operating temperature | 5°C to 40°C (41°F to 104°F) with no direct sunlightMaximum allowable operating temperature de-rated 1C/175 m (1F/319 ft) above 950 m (3117 ft)5°C to 4°5C (41°F to 113°F) with no direct sunlightMaximum allowable operating temperature de-rated 1C/125 m (1F/228 ft) above 950 m (3117 ft)System performance may be impacted when operating in the extended operating temperature range.Operation above 40°C is limited to less than 1% of annual operating hours.Hardware configuration limits apply to extended operating temperature range. |
| Nonoperating temperature | Below -40°C or above 65°C (below -40°F or above 149°F)Maximum rate of change (operating and nonoperating)20°C/hr (36°F/hr) |
| Operating relative humidity | 8% to 90% and 24°C (75°F) maximum dew-point temperature, noncondensing environment |
| Nonoperating relative humidity | 5% to 95% and 33°C (91°F) maximum dew-point temperature, noncondensing environment |
| Operating altitude | 0 m to 3050 m {10,000 ft) |
| Nonoperating altitude | Below 0 m or above 12,000 m (39,370 ft) |
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