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NANDrive™ Frequently Asked Questions (FAQs)NANDrive

Product
Q1. What is NANDrive?
Q2. When were NANDrive embedded SSDs introduced to the general market?
Q3. What markets does NANDrive serve?
Q4. What are the advantages of NANDrive compared with other solid state drive (SSD) or hard disk drive (HDD) products? Does Greenliant have comparison data?
Q5. Does Greenliant offer extended temperature NANDrive products?
Q6. What is the difference between Industrial Grade, Industrial Temperature and
Commercial Temperature NANDrive products?

Q7. Will Greenliant maintain pin-to-pin compatibility across all capacities and between
current and future NANDrive products?

Q8. Does Greenliant own the controller and firmware of NANDrive?

Technical
Q1. Will a PCB redesign be required if we need to switch to a different capacity NANDrive product?
Q2. How many ECC bits are supported by the hardware error correction on NANDrive?
Q3. How does the host know when the embedded NAND flash is reaching the end of its operational lifespan?
Q4. What file system(s) are supported by NANDrive?
Q5. Can you boot from NANDrive?
Q6. Is the NANDrive firmware field upgradeable?
Q7. If the number of bad blocks on the NAND flash becomes excessive, will the host be able to perform Read functions on NANDrive?
Q8. Does Greenliant provide a PCB layout guideline for NANDrive?
Q9. How are the NANDrive data protection and security functions implemented?
Q10. Can NANDrive be connected to the memory bus?

Support
Q1. What happens when the internal NAND flash memory changes?
Q2. Does Greenliant offer long-term supply support for NANDrive, including no changes to the NAND flash or to the firmware for prolonged periods of time?
Q3. Does Greenliant have reliability data for all NANDrive products?
Q4. Where can I find product documentation and marketing literature on NANDrive?
Q5. Are NANDrive samples and evaluation boards available?
Q6. Where can I buy NANDrive?

 

Product

Q1. What is NANDrive?
A1. NANDrive is a Greenliant branded solid state drive (SSD) consisting of an integrated NAND controller and NAND flash die in a small, ball grid array (BGA) package. NANDrive products support various industry-standard interfaces such as eMMC (embedded MultiMediaCard), PATA (Parallel ATA) and SATA (Serial ATA). All NANDrive products share the same footprint across all capacities, ranging from 512 MByte to 64 GByte, within each interface family.
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Q2. When were NANDrive embedded SSDs introduced to the general market?
A2. The NANDrive product family was introduced in October 2006. NANDrive leverages more than 20 years of NAND controller and SSD design expertise of Greenliant, and has been developed as a highly integrated managed NAND solution with high endurance and reliability to address long-life embedded applications.
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Q3. What markets does NANDrive serve?
A3. NANDrive effectively serves the needs of automotive, communications and networking, defense and aerospace, industrial, medical, video surveillance and portable computing market segments. These applications typically cannot use discrete NAND flash due to frequent process node migrations resulting in costly system redesigns.
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Q4. What are the advantages of NANDrive compared with other solid state drive (SSD) or hard disk drive (HDD) products? Does Greenliant have comparison data?
A4. NANDrive offers superior endurance and reliability, advanced power interrupt data protection and configurable security features. NANDrive uses a smaller footprint and is typically easier to integrate compared with many competing products. Please contact your Greenliant sales representative for more information and competitive data.
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Q5. Does Greenliant offer extended temperature NANDrive products?
A5. Industrial temperature (-40 to +85 degrees Celsius) NANDrive products are available with both 1-bit-per-cell (SLC) and 2-bits-per-cell (MLC) NAND to meet varying customer requirements for lifespan, endurance and performance.
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Q6. What is the difference between Industrial Grade, Industrial Temperature and Commercial Temperature NANDrive products?
A6. Industrial Grade (I-grade) = high-endurance* SLC NAND-based Greenliant SSDs supporting industrial temperatures (-40 to +85 degrees Celsius),
Industrial Temperature (I-temp) = standard-endurance** MLC NAND-based Greenliant SSDs supporting industrial temperatures (-40 to +85 degrees Celsius),
Commercial Temperature (C-temp) = standard-endurance MLC NAND-based Greenliant SSDs supporting commercial temperatures (0 to +70 degrees Celsius)

* high-endurance – 60K-100K Program/Erase cycles (typical)
** standard-endurance – 3K-5K Program/Erase cycles (typical)

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Q7. Will Greenliant maintain pin-to-pin compatibility across all capacities and between current and future NANDrive products?
A7. Greenliant intends to keep the same ball print for all NANDrive products within each interface family.
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Q8. Does Greenliant own the controller and firmware of NANDrive?
A8. Greenliant designs and develops all controllers, firmware, packaging and testing in-house. By owning the full competency of the entire NANDrive device, Greenliant can offer a wide range of embedded SSD products and provides its customers with efficient “one-stop-shop” support.
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Technical

Q1. Will a PCB redesign be required if we need to switch to a different capacity NANDrive product?
A1. No. All NANDrive products share the same footprint across all capacities within each interface family.
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Q2. How many ECC bits are supported by the hardware error correction on NANDrive?
A2. The number of ECC bits supported varies depending on the NANDrive product. The range is from 8-bits to 60-bits per different page size. Please refer to the fact or data sheet of the specific NANDrive product for more detail.
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Q3. How does the host know when the embedded NAND flash is reaching the end of its operational lifespan?
A3. The lifespan of the product can be determined by using an age analysis tool utilizing S.M.A.R.T. commands. Please contact Greenliant technical support for more information.
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Q4. What file system(s) are supported by NANDrive?
A4. NANDrive supports all types of file systems.
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Q5. Can you boot from NANDrive?
A5. Booting directly from PATA and SATA NANDrive will work if the host chipset supports internal flash or ROM memory with system boot code, or if there is an external flash or a ROM installed with system boot code or BIOS. PATA and SATA NANDrive SSDs support system boot the same way as a hard disk drive (HDD). eMMC NANDrive has a configurable boot partition and supports power-on booting (high-speed boot, DDR boot).
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Q6. Is the NANDrive firmware field upgradeable?
A6. Yes. If requested, Greenliant can provide tools for firmware field updates. Greenliant can also help customers develop their own firmware update tool based on the provided firmware update specification.
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Q7. If the number of bad blocks on the NAND flash becomes excessive, will the host be able to perform Read functions on NANDrive?
A7. Yes. The NAND flash can still be read, but cannot be written to when the number of bad blocks exceeds its maximum allowed quantity.
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Q8. Does Greenliant provide a PCB layout guideline for NANDrive?
A8. Greenliant intends to keep the same ball print for all NANDrive products within each interface family. Package size and operation voltage may change due to NAND technology advancement to smaller geometries. A PCB layout design guide is available and provides detailed recommendations and descriptions. Please contact Greenliant technical support for more information.
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Q9. How are the NANDrive data protection and security functions implemented?
A9. A copy of the NANDrive Data Protection and Security presentation can be obtained through your Greenliant sales representative.
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Q10. Can NANDrive be connected to the memory bus?
A10. Yes, PATA (Parallel ATA) NANDrive can be connected to the memory bus. Please contact your Greenliant sales representative for a copy of the NANDrive on Memory Bus presentation.
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Support

Q1. What happens when the internal NAND flash memory changes?
A1. NANDrive is a managed NAND solution, which protects from NAND flash obsolescence by offering customers a seamless migration path, subject to some technical limitations. Customers are notified of product changes and recommended compatible solutions through PCNs (Product Change Notifications).
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Q2. Does Greenliant offer long-term supply support for NANDrive, including no changes to the NAND flash, for prolonged periods of time?
A2. Greenliant’s Long-Term Availability (LTA) program offers a stable portfolio of SLC NAND-based NANDrive products (eMMC, PATA, SATA) for up to ten years. While typical redesign cycles for third-party, MLC NAND-based products are every two years, Greenliant, on average, supports double that time from the NANDrive product release date. Please contact your Greenliant sales representative to discuss long-term NANDrive support in more detail.
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Q3. Does Greenliant have reliability data for all NANDrive products?
A3. Yes, Greenliant has reliability reports for all NANDrive products released to market. Please contact your Greenliant sales representative to obtain copies of the reports.
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Q4. Where can I find product documentation and marketing literature on NANDrive?
A4. General product documentation and marketing literature are available on Greenliant’s website. Advanced product and technical information (detailed application notes, benchmark test reports, etc.) is available to customers through their Greenliant sales representative.
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Q5. Are NANDrive samples and evaluation boards available?
A5. Greenliant recognizes the importance of providing potential customers with a convenient way to order product samples and evaluation boards. Sample and evaluation board request forms are available online.
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Q6. Where can I buy NANDrive?
A6. View the list of Greenliant authorized distributors and sales representatives online.
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