I can confirm the same behavior for Ubuntu 12.10 AMD64 on an ASUS
P8B75-V. My boot drive, sda, is an ssd.
The four mechanical drives run through a single pci/IDE interface.
sda: OCZ-VERTEX4 (1.5) (ssd, not an issue)
sdb: Seagate ST380011A
sdc: Maxtor 6L020L1
sdd: Maxtor 6E020L0
sde: Hitachi HDS724040KLAT80
All mechanical drives spindown 60 seconds after signon, as configured in the
'Disks' gui (ver 3.6.1).
All mechanical drives reliably respond to 'sudo hdparm -S 12 /dev/sdb' (as do
sdc,sdd,and sde).
All mechanical drives remain asleep until user or program access.
When NOT configured to spindown in 'Disks', all mechanical drives do not
recognize/respond to commands in /etc/hdparm.conf:
/dev/sdb {spindown_time=12}
/dev/sdc {spindown_time=12}
/dev/sdd {spindown_time=12}
/dev/sde {spindown_time=12}
Also, after a suspend/resume powerdown, all mechanical drives no longer
spindown again unless commanded to in terminal or the 'Disks' gui.
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https://bugs.launchpad.net/bugs/1073137
Title:
time-controlled spindown with hdparm
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