These drives link together based on the frequency set for each drive. All drives with the same frequency and privacy share the same contents, regardless of who crafted them. Whether in your AE2 system, another dimension, or on another player’s system, the contents are globally synchronized.

EnderDrives

EnderDrives is a mod that offers a way to store your items in the End — but digitally. Each drive has a type limit based on its capacity.
This is an artificial limit for gameplay mechanics, not due to storage limitations, but it is heavily suggested to try and keep the least amount of types in the system as possible.
The system has been reliably tested up to 250,000 types. Exceed that with caution.

Transfer Mode

Bidirectional:
Drives set to Bidirectional (default) facilitate normal disk drive function. You are able to input/extract items like normal.

Input:
Drives set to Input will only allow the player and automations to input items. You are able to view the stacks, but you will be unable to remove them.

Output:
Drives set to Output will only allow the player and automations to pull from the drive, never insert.

Scope / Privacy Options

Global:
Items stored under this scope are shared server-wide. Any player with a drive set to the same frequency can access the same shared inventory.

Private:
Drives in private mode are tied to your UUID and only you can assign them to your private space. Other players can use the drive through your ME system, but the inventory is yours alone.

Team:
Team drives are accessible by all members of your FTB Team. Any member can craft a drive and set it to a team frequency. Internally, the data is tied to the party owner’s UUID, so even if the team disbands, the original owner still has access.

Powered by EnderDB

To handle storage at such large scales, EnderDrives uses a purpose-built database called EnderDB. All items are stored with their full data component (NBT), ensuring perfect accuracy in identifying and tracking items.
Each stored item is indexed by its frequency, scope, and full NBT, along with a count. The count is stored as a signed 64-bit long, allowing up to 9 quintillion items in a single record.

EnderDB Features

The goal of EnderDB is speed, reliability, and efficiency. EnderDB uses:

Rotating Write-Ahead Logging (WAL) for data integrity
Batch Commits for performance
CRC32 Checksums for data integrity
Compact Binary Storage for performance
In-Memory Caching for performance
Dedicated Background Threading
Safe Handling of Shutdowns and Crashes

All operations are atomic, ensuring that no data is ever lost or corrupted, even in the event of world corruption or server failure.

Data is saved in your world folder:
saves/world/data/enderdrives/enderdrives.bin
Write-ahead log (WAL) files are stored alongside this file for recovery and performance.