On Sun, 27 Feb 2011, Kenneth Porter wrote:
To: CentOS mailing list centos@centos.org From: Kenneth Porter shiva@sewingwitch.com Subject: [CentOS] Standard location for hotplug-time hdparm invocation
I need to disable the spin-down on an external USB drive because it spins down spontaneously while in use. The drive forgets the spindown-disable state across power outage so I need to reissue the hdparm command with each boot or hotplug. Where should I put the hdparm command to do this?
Not sure about hotpluging, but for the reboot /etc/rc.d/rc.local might be a good place to try this:
#!/bin/sh # # This script will be executed *after* all the other init # scripts. You can put your own initialization stuff in here # if you don't want to do the full Sys V style init stuff.
touch /var/lock/subsys/local
# turn off DMA for hde WD drive # -d0 = off # -d1 = on # hdparm -d0 /dev/hde
# set sector count for multiple sector I/O # WD drives like a low setting # to prevent I/O data errors. # hdparm -m2 /dev/hde
Kind Regards,
Keith Roberts
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