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Disks
Disk User Addressable Host Device Firmware Data Area Protected Configuration Area (Partition table, partitions) Area (HPA) Overlay (DCO) -n ---- | ---------------------------------------------- | -----------| ------------ n+
- Firmware area
- firmware code
- UADA
- Visible storage space for OS
- HPA
- Known by BIOS, recovery partition and diagnosis tools
- DCO
- Used by manufacturer for configuration
- HDD
- No deletion, blocks(?) marked as deleted
- SSD
- Deleted on block level
- Wear Leveling, TRIM,
- HPA/DCO can be enabled (?) https://www.thomas-krenn.com/en/wiki/SSD_Over-provisioning_using_hdparm