[DRAFT] SSD TRIM Support

TRIM is essential for SSDs (Solid State Drives) to optimize performance and extend lifespan.

Why is TRIM Important?

• Performance Optimization: TRIM identifies unused data blocks for efficient garbage collection and reduced write amplification. It also maintains consistent write performance and speeds over time.

• Extended Longevity: Reduces wear by minimizing unnecessary write/erase cycles.

• Space Management: Ensures accurate free space tracking for efficient storage.

Implementation Steps

1. Configuration:

   • Add disk.enableSSDTrims = 1 to node.cfg and reboot.

2. Example for Encrypted Volumes:

   • Update configuration with:

     vols = all:f
     disk.encryptNewVolumes=1
     disk.encryptionKeys={'keyA':'theBestWay'}
     disk.encryptionKeyPrimary=keyA
     disk.enableSSDTrims = 1

3. Verification:

   • Use iostat -x to confirm TRIM activity in discard columns.

By integrating TRIM, SSDs maintain optimal performance, efficient storage management, and extended durability, delivering robust storage solutions.

Limitations

• SWARM does not currently support NVMe SSDs or self-encryption features.