ZNS:
sudo ./zbd report -i /dev/nvme0n2
- Vendor ID: WZS4C8T1TDSP303
- Zone model: host-managed
- Capacity: 1941.325 GB (3791650816 512-bytes sectors)
- Logical blocks: 473956352 blocks of 4096 B
- Physical blocks: 473956352 blocks of 4096 B
- Zones: 904 zones of 2048.0 MB
- Maximum number of open zones: 14
- Maximum number of active zones: 14
SSD:
- SN540
- WUS4B7696DSP303
- 894.3GiB
ZNS:
- Storage Structure: 904 zones, each sized at 1.0518 GiB, totaling 950.79 GiB.
- Concurrency: Max of 14 zones active or open simultaneously.
- Write Strategy: Use 14 concurrent writers, each writing to a separate zone. When a zone completes, move on to a new one.
SSD:
- Storage Structure: 894.3 GiB total capacity, split into 904 equal regions (size equivalent to ZNS zones).
- Concurrency: Write to 14 regions concurrently.
- Write Strategy: As each region completes, transition to a new region, maintaining the 14 concurrent writers.
This setup provides parity between ZNS and SSD experiments by aligning the storage and write processes to allow for consistent comparisons.