Show HN: Petabyte-scale storage for AI agent sandboxes
twitter.comWe enabled Petabyte scale durable storage for Celesto sandboxes, useful for coding agents, harnesses and store large files.
We enabled Petabyte scale durable storage for Celesto sandboxes, useful for coding agents, harnesses and store large files.
This test creates a 10 GiB sandbox, then writes 20 GiB of data into the workspace. It shows that large workspace data is not constrained by the root disk size.
1. Create a new sandbox with 10gb root storage:
`celesto computer create --template coding-agent --disk-size-mb 10240`
2. Write 20 GiB under user home dir:
``` celesto computer run einstein "python3 - <<'PY' from pathlib import Path import hashlib import os
target_dir = Path('/home/ohm/storage-proof') target_dir.mkdir(parents=True, exist_ok=True) target = target_dir / 'twenty-gib.bin'
with target.open('wb') as f: for gib in range(20): for block_index in range(1024): seed = f'{gib}:{block_index}'.encode() block = hashlib.sha256(seed).digest() * 32768 f.write(block) f.flush() os.fsync(f.fileno()) print(f'wrote {gib + 1} GiB', flush=True)
print('final size bytes:', target.stat().st_size) PY" ```
3. Verify the file is larger than the 10 GiB root disk:
`celesto computer run einstein "du -h /home/ohm/storage-proof/twenty-gib.bin && df -h / /home/ohm"`