Device Tagging - Hitachi 220H Bios Manual

Device Tagging

You can use device tagging, where redundancy is enabled at the DRAM chip level
so that the system unit can avoid system down and can continue operation even
when one DRAM chip on the DIMM fails.
Device tagging is not operated when you set Memory Mode to Mirroring, Lock
Step, or Sparing. If you use device tagging, set Memory Mode to
Independent.
System BIOS 1-35
Hitachi Compute Rack 210H/220H BIOS Guide