BIOS.StorageSettings.HddSeq no longer exists on R730xd firmware 2.19+.
Update --idrac mode to print a clear explanation instead of failing,
and update docs to skip Layer 1 and go straight to the Linux systemd service.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
12x 3.5" HDDs spinning up simultaneously can spike ~240W, pushing a single
750W PSU close to its limit. Two-layer fix:
- Layer 1: racadm iDRAC BIOS setting (HddSeq) fires at POST before OS loads
- Layer 2: stagger-spinup.service wakes drives one at a time via hdparm on boot
https://claude.ai/code/session_01TxTSnxDjgEVuNztdsWQjMD
Claude