1
vote
1answer
63 views

How to set the spin down timeout on WD Green HDDs

My internal WD20EARS disk does not spin down autoamtically. I tried hdparm -S 1 (5 seconds), but nothing happens. I disabled the IntelliPower headparking with wdidle3 from the Ultimate Boot CD. hdparm ...
0
votes
1answer
119 views

Hard disk very slow, failing with more and more errors

Since a couple days, my Seagate Momentus 7200.4 has been failing more and more, possibly because of a power outage. After the "WARNING: Your hard drive is failing" (I'm using fedora), the main symptom ...
0
votes
0answers
89 views

Sleep hard disk after X minutes of idle

I want to make two drives sleep after 15 minutes of idle (sdb and sdc) on Linux Arch. I have the idea that hdparm should be able to help me. I can put the disks into standby (hard disk spins down, ...
1
vote
0answers
189 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 ...
4
votes
2answers
4k 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‐ ...
3
votes
1answer
216 views

Using HDPARM to tune drives

Can HDPARM reallt be used to tune and enhance performance on drives? I've seen tutorials but does it really make a difference?
3
votes
1answer
2k views

hdparm vs /dev/zero in hdd erase

So, what is more secure and why? hdparm --security-erase-enhanced NULL /dev/sdX or dd if=/dev/zero of=/dev/sdx
1
vote
0answers
1k views

Why is “hdparm -w” considered dangerous?

I have an old disk that often gets stuck in some form of loop, and often I need to perform a full reboot to get it "unstuck", whereupon I had found out about the hdparm -w command. However, its ...
2
votes
2answers
864 views

Putting an ATA storage device into PIO mode

I'm trying to do make the drive go into PIO mode with hdparm on Linux. hdparm -X pio0 /dev/sdX I have tried about 4-5 disks (PATA & SATA). I always get the same error: SG_IO: bad/missing ...