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Ralf Mardorf wrote:
<snip>
>>> but making hard disks sleep is a PITA on Linux,
>>>
>> indeed.
>>
Really? I have I used this ability under Linux for the better part of a
decade.
>
> :(
>
>>> hdparm doesn't work on many machines, so the hard
>>> disks are running all the time, even if I only need one of two devices.
>>>
It has worked on pretty much every machine I have ever owned. For USB
connected devices I have used sdparm. The syntax is different so you
will need to RTFM.
>> It's not only hdparam but also the 'noatime' mount option,
>> /proc/sys/vm/dirty_writeback_centisecs (or /etc/sysctl.conf) and ext3's
>> journal_data_writeback option (`man tune2fs`).
>> ..and beware: in case of power-loss it can be dangerous to have fiddled
>> with those!!!
noatime is not dangerous, but does not really gain anything either since
it happens when you are accessing a disk. Messing with journal options
is probably not the best idea, especially on a DAW where data integrity
would presumably be important.
Usually you only see the noatime and nodatime options when using write
sensitive media like compact flash. In those cases you would not be
using ext3 anyway.
>>
>> I'm not sure if /etc/hdparm.conf accepts wildcards, but I'd hazard a
>> guess that
>> /dev/discs/disc*/disc {
>> spindown_time = 240
>> }
>> may be a good default for 64studio.
>>
>>
>>> It's written that Intel can't scale each core of a CPU independently,
Anything older than the Core i7 does not scale independently. I did not
know that AMD could do this, perhaps they got something right with AM2
after all.
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