The Broadcom MegaRAID 9540-2M2 Boot Adapter is a high-performance storage adapter designed to support two M.2 SSDs for booting a server's operating system. This adapter offers a reliable and versatile boot solution with various transfer rates, supporting both SATA and PCIe (NVMe) M.2 drives through an M and B+M key solution. It automatically detects the drive type and negotiates speeds and protocols to interface with both storage device types concurrently.
Function Description:
The primary function of the MegaRAID 9540-2M2 Boot Adapter is to provide a robust and high-performance boot solution for servers. It leverages RAID level 0 and 1 for data redundancy and performance, ensuring system stability and data integrity. The adapter is designed for easy installation and integrates seamlessly into server environments. Its tri-mode controller architecture allows for flexible storage configurations, accommodating different M.2 drive types and protocols.
Important Technical Specifications:
RAID Features:
- RAID Levels: Supports RAID level 0 and 1.
- Online Capacity Expansion (OCE): Allows for expanding array capacity without downtime.
- Auto Resume: Automatically resumes array rebuild or OCE after a system power loss.
- Fast Initialization: Enables quick setup of arrays.
- Check Consistency: Performs background data integrity checks.
- SSD Support: Includes SSD Guard™ technology for enhanced SSD management.
- Patrol Read: Scans and repairs media for potential issues.
- Disk Data Format (DDF): Supports DDF-compliant Configuration on Disk (COD).
- S.M.A.R.T Support: Provides Self-Monitoring, Analysis, and Reporting Technology for drive health.
- MegaRAID SafeStore™: Offers SafeStore disk encryption (SED) key management.
PCIe Host Interface:
- Interface: PCIe 4.0 host interface.
- Lanes: Eight-lane PCIe host interface.
- Transfer Rates: Maximum transmission and reception rates of up to 128 GT/s (16GB/s per lane).
- Link Transfer Rate: Single-phy (one-lane) link transfer rate of 16 GT/s, 8 GT/s, 5 GT/s, and 2.5 GT/s in each direction.
- Aggregate Bandwidth: Eight-lane aggregate bandwidth of up to 16GB/s (16,000 MB/s).
- Link Widths: Supports x8, x4, x2, and x1 link widths.
- Features: PCIe Hot Plug, low overhead and low latency, lane reversal and polarity inversion.
- Power Management: Supports PCI Bus Power Management Interface Specification Revision 1.2 and Active State Power Management (L0 states) for power saving.
- Error Handling: Includes robust error handling mechanisms.
Storage Interface Features:
- SerDes Technology: Enables maximum flexibility by supporting NVMe or SATA M.2 drives.
- Drive Detection: Automatically detects drive type and negotiates speeds and protocols.
- PCIe (NVMe) Interface: Supports x1, x2, or x4 NVMe drives with data transfer at 16GT/s, 8GT/s, 5GT/s, and 2.5GT/s.
- SATA Interface: Supports SATA data transfer rates of 6Gb/s and 3Gb/s.
- M.2 Drive Lengths Supported: 110 mm, 80 mm, 60 mm, 42 mm, 30 mm.
Physical Dimensions:
- Board Size: 2.536 in. x 6.9 in. (64.41 mm × 175.26 mm).
- Component Height: Complies with the PCIe Card Electromechanical specification.
Environmental Conditions:
- Operating Temperature: 0°C to +55°C.
- Non-Operating Temperature: -40°C to +70°C.
- Operating Relative Humidity (non-condensing): 5% to 90%.
- Non-Operating Relative Humidity (non-condensing): 5% to 95%.
- Airflow: Minimum 150 LFPM at 55°C (ambient) without M.2 drives. Additional airflow is required for M.2 drives to keep the SAS3808 IOC processor's junction temperature at 105°C or less. M.2 drive heat sinks may be necessary.
Power Supply Requirements:
- Power Source: Supplied through the PCIe 3.3V rail (3.3V ± 9%) and the 12V rail (12V ± 8%).
- Onboard Regulator: Switching regulator circuitry operates from 3.3V and 12V rails.
- M.2 Drive Power: Each M.2 drive may use a maximum of 11.55W, powered from the 12V rail.
- SAS3808 Core Power: Powered from the 3.3V rail, requiring approximately 6W.
- Total Power: Adapter might draw more than 25W total (limit of some x8 slots). Many systems combine 12V and 3.3V rails to supply up to 35W (25W from 12V, 10W from 3.3V). Total power depends on M.2 SSDs used.
- Typical Power (two 500 GB x4 NVMe PCIe 16GT/s drives): PCIe 3.3V: 6W, PCIe +12V: 11.5W, Total power: 17.5W.
- Measurement Conditions: Typical power is measured with maximum I/O traffic, typical silicon process material, and nominal voltages operating the card at an ambient temperature of 45°C with required airflow.
Usage Features:
Operating System Support:
The adapter supports a wide range of operating systems, including:
- Microsoft Windows
- VMware vSphere/ESXi
- Red Hat Enterprise Linux
- SuSE Linux
- Ubuntu Linux
- Citrix XenServer
- CentOS Linux
- Debian Linux
- Oracle Enterprise Linux
- Fedora
- FreeBSD
Firmware and drivers are regularly updated and available on the Broadcom Support and Download center.
Installation:
- Unpacking: Carefully unpack and inspect the adapter for damage.
- Power Off: Turn off the computer power, disconnect the AC power cord, and remove the computer cover.
- Connector Review: Refer to the adapter's connector and LED designations for proper identification.
- Mounting Bracket: Replace the full-profile mounting bracket with the supplied low-profile bracket if required, using an ESD-safe No. 1 Phillips screwdriver. Ensure proper torque (4.8 ± 0.5 inch-pounds) to avoid damage.
- Stand-offs: Install the black plastic stand-offs in the appropriate holes for the M.2 drive length.
- M.2 Drive Installation: Install M.2 SSDs into the adapter's connectors and secure them with fasteners.
- PCIe Slot Insertion: Insert the adapter into an available PCIe slot, aligning the bus connector and pressing firmly until seated. Secure the bracket to the chassis. Note that some x16 PCIe slots may only support graphics cards.
- Airflow: Ensure adequate airflow for the installed adapter, referring to technical specifications for cooling requirements.
- Power On: Reinstall the computer cover, reconnect AC power, and power on the host computer. During boot, a BIOS message will appear, indicating firmware initialization and adapter controller information.
- Storage Profile: Choose the correct storage profile using the 12Gb/s MegaRAID Tri-Mode Software User Guide and LSI® Storage Authority Software User Guide.
- Driver Installation: Install the appropriate operating system drivers, which are routinely updated and available from Broadcom.
LED Designations:
- LED2 (Yellow IOC over temperature): Stays solid to indicate the SAS3808 IOC temperature sensor is over the threshold. Turns off when the IOC is in the proper temperature range.
- LED3 (Green system heartbeat): Indicates that the SAS3808 IOC is operating normally.
Maintenance Features:
Adapter Security:
- Hardware Secure Boot: Protects the system from malicious activity by ensuring only authenticated firmware executes on the adapter.
- Root of Trust (RoT): The adapter boots from an internal boot ROM, establishing the initial RoT.
- Chain of Trust (CoT): Hardware secure boot authenticates and builds a CoT with succeeding firmware images, ensuring only authorized firmware runs.
- Digital Signature: All Broadcom-supplied firmware images are signed with a valid digital signature. Counterfeit images will fail authentication, and download utilities like StorCLI2 will display failure messages.
Compliance and Certifications:
The adapter is designed to minimize electromagnetic emissions, susceptibility to radio frequency energy, and electrostatic discharge. It holds various marks and certifications, including:
- Australia and New Zealand RCM: Meets AS/NZS CISPR 32:2015, Class B.
- Canada EMC: Meets CANADA ICES-003 CLASS B, CAN ICES-3 (B)/NMB-3 (B), ICES-003:2016 Issue 6: 2016, Class B, CAN/CSA CISPR 22-10, CISPR 22:2008.
- Europe (CE): Meets EN 55022/EN 55024 EN 55032, EN 55032:2015 +AC:2016, Class B, EN 50022:2010 +AC:2011, Class B, EN 55024:2010 +A1:2015.
- Korea (RRL): Meets KN32/KN35 testing requirements.
- Taiwan (BSMI): Meets CNS 13438, CNS15663.
- USA / Canada Safety (UL Listed): For use with UL listed ITE equipment only, meets UL 62368-1, Third Edition, and CAN/CSA C22.2 No. 62368-1-19, Third Edition.
- CB Scheme Safety: Meets IEC 60950-1:2005 (Second edition) + Am 1:2009 + Am 2:2013, EN 60950-1:2006 + A11: 2009 + A1: 2010 + A12: 2011 + A2: 2013, IEC 62368-1:2014 (Second edition), EN 62368-1:2014+A11: 2017.
- Japan (VCCI): Meets V-3/2015.04, Class B, V-4/2012.04, VCCI-CISPR 32:2016, CISPR 32:2015.
- USA / Canada (FCC): Meets 47 CFR FCC Part 15, Subpart B, Class B, ANSI C63.4:2014, CISPR 32:2008.
- Morocco (CMIM): Meets EN 55022/EN 55024 EN 55032, EN 55032:2015 +AC:2016, Class B, EN 50022:2010 +AC:2011, Class B, EN 55024:2010 +A1:2015.
- Safety Characteristics: Meets or exceeds UL flammability rating 94 V0. Bare boards are marked with supplier name/trademark, type, and UL flammability rating. All voltages for boards in a PCIe bus slot are lower than the SELV 42.4V limit.
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