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5
votes
2answers
7k views

What do different values of hard drive's Advanced Power Management feature (hdparm -B) affect, except spin-down?

hdparm's -B parameter is documented as: Get/set Advanced Power Management feature, if the drive supports it. A low value means aggressive power management and a high value means better per‐ ...
1
vote
0answers
273 views

How do hdparm's -S and -B options interact?

These two options seem confusing. For example: according to the man page -B 254 "does not permit spin-down". However, testing with -B 254 -S 1 the drive does spin down after 5 seconds. -B ...
0
votes
1answer
643 views

SET_MAX_ADDRESS failed: Input/output error

I'm having problems with a 2TB drive being visible as a 1TB drive in the BIOS. A little research suggests this is due to HPA. I have booted off a live-CD. The syslog contains the following: [ ...