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Summary of Contents for Dell MD2412
- Page 1 MD2412 and MD2424 Direct-Attach Storage for PowerEdge Servers Owner's Manual Regulatory Model: QUIAE/CONAE/QUIAE-DC/CONAE-DC April 2025 Rev. A06...
- Page 2 A WARNING indicates a potential for property damage, personal injury, or death. © 2023 -2025 Dell Inc. or its subsidiaries. All rights reserved. Dell Technologies, Dell, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners.
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Page 3: Table Of Contents
Contents Chapter 1: System overview......................5 Locate the service tag............................... 5 MD2412 and MD2424 front view.............................5 MD2412 and MD2424 back view............................. 6 MD2412 and MD2424 LEDs...............................7 Front panel LEDs................................7 2U enclosure drive carrier module LEDs........................8 EMM LEDs..................................9 PSU LEDs..................................10 Chapter 2: Safety precautions...................... - Page 4 Troubleshooting startup failures............................ 37 Troubleshooting the power supply unit........................37 Troubleshooting the EMM...............................37 Troubleshooting drives..............................38 Troubleshooting enclosure connections........................38 Troubleshooting a damaged enclosure.........................38 Appendix A: Technical specifications..................39 Appendix B: Standards and regulations..................42 Potential for radio frequency interference........................42 ICES-003 (Canada)................................42 Recycling of Waste Electrical and Electronic Equipment (WEEE)................42 Contents...
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Page 5: Chapter 1: System Overview
System overview The MD2412 and MD2424 enclosures provide direct-attach storage to servers. They connect directly to the SAS ports on the back of a host system, and the management software running on the host system manages the enclosure. The MD2412 2U enclosure supports up to 12 3.5‐inch drives installed in a four‐column, three-row configuration. The MD2424 2U enclosure supports up to 24 2.5‐inch drives installed vertically side by side. -
Page 6: Md2412 And Md2424 Back View
MD2412 and MD2424 back view The MD24 Series systems contain two hot-swappable EMMs and two hot-swappable PSUs. NOTE: The EMMs are not interchangeable between MD2412 and MD2424 systems. Figure 2. MD2412 and MD2424 back view (AC PSU) 1. AC PSU-B 2. -
Page 7: Md2412 And Md2424 Leds
MD2412 and MD2424 LEDs LEDs on the front and back of the expansion enclosure provide status of the system and its components. Front panel LEDs The front panel of the enclosure contains indicators that provide status information about the system. -
Page 8: 2U Enclosure Drive Carrier Module Leds
2U enclosure drive carrier module LEDs Two LEDs mounted on the front of each drive carrier module provide drive status. The drive module LEDs are identified in the figure, and the LED behavior is described in the table following the figure. Figure 5. -
Page 9: Emm Leds
EMM LEDs The EMM indicators provide status information about the system. Figure 6. EMM LEDs Table 3. States of the EMM LEDs Index Indicator Description Color Status EMM ID Blue ● Off: Normal operation ● Blinking (1 sec. on, 1 sec. off): Identify EMM status Green... -
Page 10: Psu Leds
PSU LEDs The power supply indicator provides the PSU status. The LED is in the same position on the AC and the DC PSUs. The following figure shows the location of the LED on the AC PSU. Figure 7. PSU LEDs Table 4. -
Page 11: Chapter 2: Safety Precautions
Always follow these safety precautions to avoid injury and damage to the PowerVault MD equipment. If equipment described in this guide is used in a manner that is not specified by Dell , the protection provided by the equipment could be impaired. -
Page 12: Moving Fan Blade Precaution
Moving fan blade precaution A warning symbol as shown below (or similar) that is combined with the triangle shaped warning sign from ISO 3864-2 indicates a moving part. CAUTION: Keep fingers and other body parts away from the moving blade. Failure to take this precaution may result in personal injury. -
Page 13: Chapter 3: Installing The Enclosure In The Rack
Installing the enclosure in the rack The rack mounting rails provided with the enclosure fit in 19-inch rack cabinets. The rails have been designed and tested for the maximum enclosure weight and rack capacity. Use of other mounting hardware may cause some loss of rack space. Installing rails onto the rack First install the rails that were shipped with the unit onto your rack. -
Page 14: Install The Enclosure Into The Rack
Figure 10. Securing the rails to the rack 7. Repeat these steps for the second rail. Install the enclosure into the rack Steps 1. Use two people to lift the enclosure and align it with the installed rails. NOTE: Ensure that the enclosure remains level while inserting it in the rack. 2. -
Page 15: Installing The Ground Lug Assembly
Figure 12. Securing the enclosure to the rack Installing the ground lug assembly The ground lug assembly is used to safely and effectively ground the chassis to the cabinet in which it is installed. This is an important task in the overall installation process of the storage enclosure. Install the ground lug assembly You must install the ground lug assembly onto your DC chassis to ensure safe operating conditions. - Page 16 Figure 13. Remove screw from bracket 2. Using the 8-mm socket, remove the nuts and washers from the bracket assembly. Figure 14. Remove nuts and washers 3. Place the terminal lug over the bolts on the bracket assembly, and attach the terminal lug by re-installing the nuts and washers.
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Page 17: Attach The Bezel
Figure 16. Schematic for metal wire and terminal lug 6. Attach the other end of the #10 AWG wire to an unpainted surface in the cabinet. Attach the bezel The enclosure includes an optional bezel that you can attach to the front of the enclosure. Steps 1. -
Page 18: Chapter 4: Connecting Sas And Power Cables
Connect SAS cables You can cable the storage enclosure using either a four-port a two-port adapter: ● A four-port HBA355e supports up to eight MD2412 or eight MD2424 enclosures. The HBA 355e is supported on PowerEdge 14G, 15G, and 16G servers. - Page 19 Figure 18. Example of SAS4 redundant-path cabling using a four-port HBA355e or HBA465e NOTE: The MD2424 enclosure connected to an HBA355e or HBA465e supports a maximum of four enclosures. Figure 19. Example of SAS4 redundant-path cabling using a four-port H965e PERC Connecting SAS and power cables...
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Page 20: Mixed Configuration
Figure 20. Example of SAS4 redundant-path cabling using a two-port PERC H840 Mixed configuration This section shows examples of the cabling for mixed configurations. See the previous section for rules governing cabling configurations. NOTE: In mixed configurations, only like enclosures can be in chain configurations. NOTE: The MD2424 enclosure connected to an HBA355e or HBA465e supports a maximum of four enclosures. - Page 21 Figure 21. Mixed configuration MD2412 and MD2424 on separate chains. Figure 22. Mixed configuration - 2U and 4U (2U12 or 2U24 on left two ports) Connecting SAS and power cables...
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Page 22: Connect Power Cables
Use iDRAC or PowerTools SHM CLI to verify that the enclosures are connected to your system. Steps 1. To use iDRAC, go to the Storage>Enclosures view and verify that the enclosure is listed. See the Integrated Dell Remote Access Controller User's Guide for details about using iDRAC. Connecting SAS and power cables... -
Page 23: Configure Mpio
2. To use PowerTools SHM CLI, run the following command: shmcli list enclosures See the PowerTools Server Hardware Manager Administrator's Guide for details about using these commands. Configure MPIO If you are connecting the MD24 Series enclosure to the host through a SAS HBA, configure MPIO on the host to direct I/O through the redundant cabling. -
Page 24: Verifying Multipath In Linux
Verifying Multipath in Linux For Linux, Multipath should already be configured. When connecting to the host using a SAS adapter, follow these steps to ensure that Multipath is configured for the enclosures. Steps 1. Run the following command to verify that the multipath is active (running): systemctl status multipathd 2. - Page 25 NOTE: The preceding figures show dual controller module configurations. Alternatively, you can configure the 2U controller enclosure with a single controller module. In single controller module configurations, the controller module is installed in slot A, and a blank plate is installed in slot B. Figure 29.
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Page 26: Chapter 5: Replacing Components
If you do not have any of the suggested equipment for proper grounding, have an authorized technician install the part. For more information about static electricity or assistance with product installation, contact customer support. For additional information, see Dell Support. Replacing components... -
Page 27: Updating Firmware
● Dell Update Package (DUP): Can be used to update both drive and EMM firmware. See the Dell Update Packages User's Guide for information about how to update firmware. If you receive a generation code mismatch error and the firmware only updates on one EMM, follow these steps to resolve the issue: 1. -
Page 28: Sas Drives
NOTE: ● The MD2412 enclosures do not support SATA, SSD, NVMe, vSAS, or 2.5 in. drives. ● The MD2424 enclosures do not support SATA, NVMe, or vSAS drives. If you insert a SATA drive into the enclosure and then replace it with a SAS drive, the enclosure will not recognize the SAS drive. - Page 29 Removing the drive carrier Remove the drive carrier from the enclosure to replace the drive. Prerequisites Use the system manager software to prepare the drive for removal. If the drive is online, the green activity or fault indicator blinks while the drive is powering off. When the drive indicators are off, the drive is ready for removal. Steps 1.
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Page 30: Installing A Drive Into A Drive Carrier
Installing a drive into a drive carrier Steps 1. Insert the drive into the drive carrier with the connector end of the drive at the back. 2. Align the screw holes on the drive with the back set of holes on the drive carrier. When aligned correctly, the back of the drive is flush with the back of the drive carrier. -
Page 31: Power Supply Unit
Power supply unit You may need to replace a power supply unit (PSU) if your system manager or the PSU LED shows a failure. The PSU is hot-swappable—you can replace a PSU without turning off the enclosure. 1. Follow the safety guidelines listed in the Safety instructions. 2. -
Page 32: Emm
The MD2412 and MD2424 enclosures support two redundant EMMs. If an EMM fails, the enclosure will run on a single EMM until the redundancy is restored. You can replace one EMM without powering off the enclosure. However, if you do not have MPIO configured on your system, Dell recommends that you stop all I/O before removing the EMM. - Page 33 Figure 39. Removing the EMM 2. Rotate the handle to release the EMM from the chassis. 3. Hold the handle and guide the EMM out of the chassis. Installing the EMM Steps 1. Rotate the release latch on the EMM 45°. Figure 40.
- Page 34 Removing the EMM cover You need to remove the EMM to replace a failed fan. Steps 1. Remove the EMM from the enclosure. See Removing the EMM. 2. Press the lock on the top of the EMM and slide the cover toward the back of the unit. Figure 41.
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Page 35: Fans
Fans Each EMM contains three fans. The temperature icon on the front of the enclosure turns amber to indicate a fan failure, and your system manager shows more details about the failed fan. You need to remove the EMM to access the fans. Removing a fan The fan is located inside the EMM. - Page 36 Figure 44. Installing a fan 3. Install the EMM cover. See Installing the EMM cover. 4. Install the EMM into the enclosure. See Installing the EMM. 5. Ensure that the temperature indicator on the front of the chassis is turned off, and use your system manager software to verify that the fan is operating properly.
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Page 37: Chapter 6: Troubleshooting
Troubleshooting This section provides information about troubleshooting your system. Before troubleshooting your system, ensure that all cables are connected to the correct ports and that the cables are securely attached. Troubleshooting startup failures Check for the following if the enclosure fails to start up: ●... -
Page 38: Troubleshooting Drives
Troubleshooting drives Disk drives are hot-swappable. Leave the enclosure powered on when replacing drives. Basic troubleshooting NOTE: Always comply with all electrostatic and thermal guidelines to prevent bodily injury and to ensure that the system functions properly when performing hot-plug operations. 1. -
Page 39: Appendix A: Technical Specifications
Technical specifications This section describes the technical specifications of the MD2412 and the MD2424 enclosures. Enclosure dimensions Table 5. Enclosure dimensions Specification MD2412 MD2424 Height 86.8 mm (3.4 in.) 86.8 mm (3.4 in.) Width 444 mm (17.5 in.) 444 mm (17.5 in.) Depth 545 mm (21.5 in.) -
Page 40: Power-On And Reset
Table 8. NEBS operating temperature requirements Specification Temperature range Relative humidity Max. Temperature Gradient Operating - altitude less than or 5°C to 40°C (41°F to 104°F) 5% to 85% non-condensing 30°C per hour equal to 1829 meters (6000 ft) Short term -5°C to 50°C (23°F to 122°F) 5% to 93% not to exceed 0.026 kg water/kg of dry air... - Page 41 Table 10. AC Power supply unit specifications (continued) Specification Measurement Holdup time 10 ms Inrush current 55 A (maximum) Leakage current 0.875 mA (maximum) Efficiency 230 VRMS ● >90% @ 10% load ● >94% @ 20% load ● >96% @ 50% load ●...
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Page 42: Appendix B: Standards And Regulations
Any modifications made to this device that are not approved by Dell may void the authority that is granted to the user by the FCC to operate this equipment.
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