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how to disable & enable HDD manually?
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double_crane
Tux's lil' helper
Tux's lil' helper


Joined: 11 Dec 2011
Posts: 134
Location: China

PostPosted: Sun Nov 17, 2013 2:49 am    Post subject: how to disable & enable HDD manually? Reply with quote

I use a SSD as system harddisk , and it's very quiet.
and a HDD to store large resources , when HDD is on ,it make noise,though not very loud.

but when at deep night , the noise HDD make makes me annoy

I notice use
Code:

hdparm -Y /dev/sdb

can make HDD off , no disk head rotate and so no noise.
but once there is some processor task access the HDD , it'll active automatically.

I want it like in windows,in windows ,there is a device manager ,and I can disable HDD there.
and it won't active automatically ,until I enable it in device manager manually again .

So,how to disable & enable HDD manually?
just how to enable HDD manually ,not automatically activate anytime I access it ?
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Maitreya
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Joined: 11 Jan 2006
Posts: 441

PostPosted: Sun Nov 17, 2013 3:22 am    Post subject: Reply with quote

Well if you disable it under windows you can't access it anymore.
If that is ok why don't you unmount the disk so there is no disk access?
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chaseguard
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Joined: 25 Jun 2004
Posts: 140

PostPosted: Sun Nov 17, 2013 5:35 am    Post subject: Reply with quote

You could make a cron job to unmount the disk and then run the hdparm command. Alternative to hdparm would be spindown which will automatically cause the disk to spindown after a an idle period you can set. I would go with the cron job.
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double_crane
Tux's lil' helper
Tux's lil' helper


Joined: 11 Dec 2011
Posts: 134
Location: China

PostPosted: Sun Nov 17, 2013 10:05 am    Post subject: Reply with quote

chaseguard wrote:
You could make a cron job to unmount the disk and then run the hdparm command. Alternative to hdparm would be spindown which will automatically cause the disk to spindown after a an idle period you can set. I would go with the cron job.



how to set idle period ?

how can I detect all the access to /dev/sdb , to count the no-acccess time since the last access?
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dlaor
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Joined: 27 Jan 2008
Posts: 55

PostPosted: Sun Nov 17, 2013 10:14 am    Post subject: Reply with quote

You can use autofs to do this: it automatically mounts a partition when needed and, optionally, unmounts it after a specified time of inactivity.

See http://wiki.gentoo.org/wiki/AutoFS.

You can combine this with some hdparm setting that tells the drive to spin down automatically when it has not been used for some time.
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