Why are CAD files slow? Smart Fetch for CAD storage.
Mechanical storage arrays choke on random reads during large assembly loads. Smart Fetch is our storage design that keeps the files engineers need on fast flash. It increases efficiency by 90% and productivity by more than 60%. Here's how we build it.
NetSecure Labs · Architecture 03
Figure: storage rack illustration from the NetSecure Industrial Technology Blueprint deck.
The symptom
A large CAD assembly is thousands of small files and metadata lookups. On spinning RAID 5 over 1GbE, workstations can freeze for 5–10 minutes.
The Smart Fetch design
- Hot tier: mirrored flash that serves the active working set.
- Cold tier: RAID 6 spinning disks.
- Metadata pinning: directory trees are kept in flash for instant indexing.
- Network: 10GbE switching and multichannel file sharing, taking throughput from 110 MB/s to 1,000+ MB/s.
The result
Smart Fetch increases efficiency by 90% and productivity by more than 60%. Large assembly loads drop from 4+ minutes to under 25 seconds, as delivered at a laser fabrication plant and a filtration-machinery manufacturer. Engineers open, save and sync without the wait.
What to monitor
- Working set: if load times start creeping back, the active data has outgrown the fast tier and it is time to resize.
- SSD endurance: terabytes written versus rated TBW.
- UPS integration: a graceful automatic shutdown protects the fast tier during power cuts.
- Capacity: CAD pools should stay under the 70–80% threshold.