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PCIe SSD FAQs

Solid State Storage
PCIe SSD(18)
Can I reduce power consumption on a PCIe drive?

Yes, you can reduce the drive’s power consumption to ≤25W by activating the power-limiting feature.

In the command-line version (CLI) of RSSDM, perform these steps:

  1. In the command line, type rssdm –M –p 1 –n <Drive_id>  where <Drive_id> can be found by running    rssdm –L .
  2. Apply the setting change by power-cycling the system.
  3. Verify the setting change by running  rssdm –L –d.

The power-limiting feature also can be activated through the RSSDM GUI:

  1. On the Server tab, select the drive (for example, rssda).
  2. The Status tab for the drive becomes active.
  3. On the Device menu, select Enable Power Limiting.
  4. A confirmation dialog box appears; select Yes to activate power limiting or No to cancel.
  5. Apply the setting change by power-cycling the system.
  6. On the next power-up, launch the RealSSDManager, select the drive again, and then click the Details tab to verify that power limiting is activated.
Can I use the PCIe 2.5-inch drive in existing server chassis?

Not exactly. You need a server chassis that has a supporting backplane with the 8639 combo connector that support PCIe/SATA/SAS.

Can a PCIe 2.5-inch drive go into my laptop?

No. This drive was not designed for client-based applications.

Do you provide source code for Linux driver development?

Yes, Linux source code is provided in the P320h and P420m support packs.

Does PCIe replace SATA and SAS SSDs?

Not exactly. PCIe is a high-performance interface with performance targets of 415,000 IOPS and 2 GB/s of bandwidth. PCIe SSDs are intended to augment most server or storage systems by providing several hardware acceleration and caching capabilities to help boost performance. Performance targets vary per system and application. At Micron, we offer our customers choices—our complete SSD portfolio provides the best tool for the job.  

Do the PCIe SSDs require specific software and/or hardware?
The drives do require installation of a Micron driver, which is available in our support packs. The only hardware requirement is that the system must have a x4 PCIe Gen2 slot (2.5-inch) or a x8 PCIe Gen2 slot (HHHL) with a maximum power specification of 25W.
How do I access the PCIe SSD software and drivers?
Create a Micron user profile by completing our online form and following the instructions. After you have a profile, notify your FAE, distributor, or sales representative that you need the P320h support pack. Micron can then grant your user profile online access to the support pack. Be sure to download the latest release.
How do I update firmware on a PCIe SSD?

Updating firmware is explained in the RSSDM User’s Guide, which is available in the P320h and P420m support packs. Refer to the “Managing the P320h/P420m Drive Using the RSSDM GUI/CLI” and “Updating a Unified Binary Image UBI” sections.

Is Micron a member of the SSD Small Form Factor Working Group?

Yes. Micron is an active, contributing member of the working group. www.ssdformfactor.org

Is the PCIe 2.5-inch only intended for server applications?

No. The 2.5-inch SSD has endless possibilities for adoption and application.  We are currently working with customers in non-enterprise applications that are reaping the performance and portability benefits of the PCIe 2.5-inch SSD.

Are the PCIe 2.5-inch SSDs available now?

Yes. For more information on availability, contact us.  

Are the PCIe drives available in an industrial temperature range?

Yes, Micron’s P420m drive is designed to operate within 0˚C to +70˚C.

What is Micron’s RAIN Technology?

Redundant array of independent NAND (RAIN) is essentially a classic data-protection scheme organized on the NAND devices of some models of Micron’s enterprise-class solid state drives. RAIN is a parity-protection scheme that helps ensure robust lifetime wear leveling and data protection similar to the data protection and redundancy found in redundant array of independent disks (RAID) systems.

What is the difference between data path protection and power-loss protection?

Data path protection provides an additional layer of protection against bit flips that is not offered by error code correction (ECC). Power-loss protection maintains voltage with capacitors so that writes can complete successfully and data is protected even if power is lost. 

What is the power throttling feature on the PCIe SSDs?

The power throttling feature is a special  firmware capability on Micron's PCIe drives that allows the IOPS performance to be reduced (throttled) so that the maximum average power of the drive does not exceed the 25W PCIe CEM slot power limit.  Disabling this capability improves drive performance but may also increase the >25W  dynamic power limit.  The default setting for this feature is “enabled,” meaning that the drive conforms to the 25W slotpower limit, but it may be disabled by the user if using Support Pack B125.02 or later. It cannot be disabled if using earlier support pack versions.

What is the U.2 PCIe SSD?

The U.2 PCIe SSD is the industry-standard 2.5-inch form factor with a SFF-8639 connector. U.2 is a simplified industry-standard term for the 2.5–inch SSD with a SFF-8639 connector.

What is XPERT?

eXtended Performance and Enhanced Reliability Technology (XPERT) is a suite of Micron-designed storage architecture enhancements that extend SSD performance and enhance reliability—both in terms of drive lifespan and data integrity. 

Micron aligns storage media (NAND) design, SSD firmware development, and hardware integration to create a comprehensive architecture that optimizes enterprise-class SSDs to meet the unrelenting demands of 24/7/365 data center workloads.

For more information, see our XPERT technical brief.

What type of applications would benefit from Micron’s PCIe drives?

Applications that require high performance, high density, and low latency would greatly benefit from Micron PCIe SSD solutions. This includes applications like video-on-demand, media streaming, virtualization appliances, web accelerators, and frequently accessed data-storage warehouses.