[Bug 59695] Re: High frequency of load/unload cycles on some hard disks may shorten lifetime
ralph at inputplus.co.uk
Sun Jan 18 12:10:10 UTC 2009
I've acpi-support 0.109-0hardy2. There's one remaining issue that I'll
point out in case others come searching. One of my drives has a -B of
64 by default. This is from `hdparm -I' having gone from power-up to
In the past, I'd altered /etc/hdparm.conf to have `spindown_time = 60',
IOW `hdparm -S', for the drive and that gets applied on a normal boot.
It was working; the drive would spindown after five minutes of
Now, the drive's -B is being set, for the first time, to -B 254 on
booting. As this is over 127, my drive never spins down from idleness.
Nor will it `spin down now, dammit' with `hdparm -y'. (I'm working
around it with -B 127 after booting has finished.)
I don't know what the solution is, having not read through all the
comments to see the underlying problem that's trying to be solved, but
perhaps the drive's existing -B setting needs examining as part of
determining the new value, i.e. don't mess with the top-bit.
High frequency of load/unload cycles on some hard disks may shorten lifetime
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