# Storage documentation

Understand storage use cases, features, and get started with the storage functionality.

## Storage overview

<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewbox="0 0 16 16" fill="none" aria-label="icon3">
  <path d="M8 2V14M3.33333 2H12.6667C13.403 2 14 2.59695 14 3.33333V12.6667C14 13.403 13.403 14 12.6667 14H3.33333C2.59695 14 2 13.403 2 12.6667V3.33333C2 2.59695 2.59695 2 3.33333 2Z" stroke="#2A2AEA" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"></path>
</svg> Storage use cases

Lists common storage use cases including LUN/WLUN support.

https://docs.qualcomm.com/doc/80-70030-6/topic/storage-overview.html#storage-use-cases

<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewbox="0 0 16 16" fill="none" aria-label="icon3">
  <path d="M8 2V14M3.33333 2H12.6667C13.403 2 14 2.59695 14 3.33333V12.6667C14 13.403 13.403 14 12.6667 14H3.33333C2.59695 14 2 13.403 2 12.6667V3.33333C2 2.59695 2.59695 2 3.33333 2Z" stroke="#2A2AEA" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"></path>
</svg> Storage features

Describes the features supported in UFS, eMMC, SD card, and NVMe devices in Qualcomm Linux.

https://docs.qualcomm.com/doc/80-70030-6/topic/features.html#storage-features

## Configure storage features

<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewbox="0 0 16 16" fill="none" aria-label="icon3">
  <path d="M8 2V14M3.33333 2H12.6667C13.403 2 14 2.59695 14 3.33333V12.6667C14 13.403 13.403 14 12.6667 14H3.33333C2.59695 14 2 13.403 2 12.6667V3.33333C2 2.59695 2.59695 2 3.33333 2Z" stroke="#2A2AEA" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"></path>
</svg> Enable UFS device

Lists the default values of the kernel configuration to enable UFS device.

https://docs.qualcomm.com/doc/80-70030-6/topic/ufs-kernel-configuration.html#ufs-kernel-config

<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewbox="0 0 16 16" fill="none" aria-label="icon3">
  <path d="M8 2V14M3.33333 2H12.6667C13.403 2 14 2.59695 14 3.33333V12.6667C14 13.403 13.403 14 12.6667 14H3.33333C2.59695 14 2 13.403 2 12.6667V3.33333C2 2.59695 2.59695 2 3.33333 2Z" stroke="#2A2AEA" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"></path>
</svg> Enable eMMC

Lists the device tree properties to enable the eMMC functionality.

https://docs.qualcomm.com/doc/80-70030-6/topic/ufs-kernel-configuration.html#enable-emmc

<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewbox="0 0 16 16" fill="none" aria-label="icon3">
  <path d="M8 2V14M3.33333 2H12.6667C13.403 2 14 2.59695 14 3.33333V12.6667C14 13.403 13.403 14 12.6667 14H3.33333C2.59695 14 2 13.403 2 12.6667V3.33333C2 2.59695 2.59695 2 3.33333 2Z" stroke="#2A2AEA" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"></path>
</svg> Enable SD card

Lists the default values of kernel configuration to enable SD card functionality.

https://docs.qualcomm.com/doc/80-70030-6/topic/ufs-kernel-configuration.html#enable-sd-card

<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewbox="0 0 16 16" fill="none" aria-label="icon3">
  <path d="M8 2V14M3.33333 2H12.6667C13.403 2 14 2.59695 14 3.33333V12.6667C14 13.403 13.403 14 12.6667 14H3.33333C2.59695 14 2 13.403 2 12.6667V3.33333C2 2.59695 2.59695 2 3.33333 2Z" stroke="#2A2AEA" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"></path>
</svg> Modify UFS device power management states

Optimize power management by modifying UFS device states.

https://docs.qualcomm.com/doc/80-70030-6/topic/power-management-states.html#ufs-power-management-states

<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewbox="0 0 16 16" fill="none" aria-label="icon3">
  <path d="M8 2V14M3.33333 2H12.6667C13.403 2 14 2.59695 14 3.33333V12.6667C14 13.403 13.403 14 12.6667 14H3.33333C2.59695 14 2 13.403 2 12.6667V3.33333C2 2.59695 2.59695 2 3.33333 2Z" stroke="#2A2AEA" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"></path>
</svg> Modify SDHC power management states

Modify SDHC power management states to optimize power management.

https://docs.qualcomm.com/doc/80-70030-6/topic/power-management-states.html#sd-card-power-management-states

<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewbox="0 0 16 16" fill="none" aria-label="icon3">
  <path d="M8 2V14M3.33333 2H12.6667C13.403 2 14 2.59695 14 3.33333V12.6667C14 13.403 13.403 14 12.6667 14H3.33333C2.59695 14 2 13.403 2 12.6667V3.33333C2 2.59695 2.59695 2 3.33333 2Z" stroke="#2A2AEA" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"></path>
</svg> Configure device using UFS parameters

Specifies the UFS host configuration parameters for configuring the device.

https://docs.qualcomm.com/doc/80-70030-6/topic/bootloader-uefi-device-tree.html#bootloader-uefi-device-tree

<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewbox="0 0 16 16" fill="none" aria-label="icon3">
  <path d="M8 2V14M3.33333 2H12.6667C13.403 2 14 2.59695 14 3.33333V12.6667C14 13.403 13.403 14 12.6667 14H3.33333C2.59695 14 2 13.403 2 12.6667V3.33333C2 2.59695 2.59695 2 3.33333 2Z" stroke="#2A2AEA" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"></path>
</svg> Configure device using SD card parameter

Specifies the SD card parameters for configuring the device.

https://docs.qualcomm.com/doc/80-70030-6/topic/bootloader-uefi-device-tree.html#config-sd-card

<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewbox="0 0 16 16" fill="none" aria-label="icon3">
  <path d="M8 2V14M3.33333 2H12.6667C13.403 2 14 2.59695 14 3.33333V12.6667C14 13.403 13.403 14 12.6667 14H3.33333C2.59695 14 2 13.403 2 12.6667V3.33333C2 2.59695 2.59695 2 3.33333 2Z" stroke="#2A2AEA" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"></path>
</svg> Configure UFS Linux kernel device tree

Specifies the parameters in SoC and platform DTSI nodes to configure the UFS Linux kernel device tree.

https://docs.qualcomm.com/doc/80-70030-6/topic/linux-device-tree.html#device-tree-ufs

<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewbox="0 0 16 16" fill="none" aria-label="icon3">
  <path d="M8 2V14M3.33333 2H12.6667C13.403 2 14 2.59695 14 3.33333V12.6667C14 13.403 13.403 14 12.6667 14H3.33333C2.59695 14 2 13.403 2 12.6667V3.33333C2 2.59695 2.59695 2 3.33333 2Z" stroke="#2A2AEA" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"></path>
</svg> Configure SDHCI (eMMC and SD card internal) Linux kernel device tree

Configure SDHCI using SoC and platform DTSI node parameters.

https://docs.qualcomm.com/doc/80-70030-6/topic/linux-device-tree.html#config-sdhci-emmc-sd-device-tree

<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewbox="0 0 16 16" fill="none" aria-label="icon3">
  <path d="M8 2V14M3.33333 2H12.6667C13.403 2 14 2.59695 14 3.33333V12.6667C14 13.403 13.403 14 12.6667 14H3.33333C2.59695 14 2 13.403 2 12.6667V3.33333C2 2.59695 2.59695 2 3.33333 2Z" stroke="#2A2AEA" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"></path>
</svg> Provision UFS device

Create and define LUNs on a new UFS device.

https://docs.qualcomm.com/doc/80-70030-6/topic/ufs-provisioning.html#ufs-provisioning

## Customize storage features

<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewbox="0 0 16 16" fill="none" aria-label="icon3">
  <path d="M8 2V14M3.33333 2H12.6667C13.403 2 14 2.59695 14 3.33333V12.6667C14 13.403 13.403 14 12.6667 14H3.33333C2.59695 14 2 13.403 2 12.6667V3.33333C2 2.59695 2.59695 2 3.33333 2Z" stroke="#2A2AEA" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"></path>
</svg> Mount the file system

Attach the file system to the intended directory.

https://docs.qualcomm.com/doc/80-70030-6/topic/customize.html#mount-file-system

<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewbox="0 0 16 16" fill="none" aria-label="icon3">
  <path d="M8 2V14M3.33333 2H12.6667C13.403 2 14 2.59695 14 3.33333V12.6667C14 13.403 13.403 14 12.6667 14H3.33333C2.59695 14 2 13.403 2 12.6667V3.33333C2 2.59695 2.59695 2 3.33333 2Z" stroke="#2A2AEA" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"></path>
</svg> Mount the SD card to a specific path

Manually mount the SD card if the default automount fails on card insertion.

https://docs.qualcomm.com/doc/80-70030-6/topic/customize.html#mount-sd-card-specific-system

<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewbox="0 0 16 16" fill="none" aria-label="icon3">
  <path d="M8 2V14M3.33333 2H12.6667C13.403 2 14 2.59695 14 3.33333V12.6667C14 13.403 13.403 14 12.6667 14H3.33333C2.59695 14 2 13.403 2 12.6667V3.33333C2 2.59695 2.59695 2 3.33333 2Z" stroke="#2A2AEA" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"></path>
</svg> Mount the NVMe card

Mount new or existing NVMe cards using <cite>fdisk</cite>.

https://docs.qualcomm.com/doc/80-70030-6/topic/customize.html#mount-nvme-card

## Debug storage issues

<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewbox="0 0 16 16" fill="none" aria-label="icon3">
  <path d="M8 2V14M3.33333 2H12.6667C13.403 2 14 2.59695 14 3.33333V12.6667C14 13.403 13.403 14 12.6667 14H3.33333C2.59695 14 2 13.403 2 12.6667V3.33333C2 2.59695 2.59695 2 3.33333 2Z" stroke="#2A2AEA" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"></path>
</svg> Debug UFS device issue

Debug UFS device issues.

https://docs.qualcomm.com/doc/80-70030-6/topic/ufs-debugging.html#debug-ufs-issues

<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewbox="0 0 16 16" fill="none" aria-label="icon3">
  <path d="M8 2V14M3.33333 2H12.6667C13.403 2 14 2.59695 14 3.33333V12.6667C14 13.403 13.403 14 12.6667 14H3.33333C2.59695 14 2 13.403 2 12.6667V3.33333C2 2.59695 2.59695 2 3.33333 2Z" stroke="#2A2AEA" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"></path>
</svg> Debug with sysfs or debugfs nodes

Troubleshoot issues using the sysfs and debugfs nodes to identify the status or update the state.

https://docs.qualcomm.com/doc/80-70030-6/topic/ufs-sysfs-debugfs.html#debug-sysfs-debugfs-nodes

Last Published: Jun 22, 2026

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