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| author | jim-p <jimp@pfsense.org> | 2012-01-30 16:24:58 -0500 |
|---|---|---|
| committer | jim-p <jimp@pfsense.org> | 2012-01-30 16:40:03 -0500 |
| commit | 51f4e64b319afe3609b6e3d66e7467fa4ba3dcc2 (patch) | |
| tree | 2dd20259f20f555599caf7f7f7e5bdc14961402a /etc/rc.disable_hdd_apm | |
| parent | 89bbb204ad58c4d0250ebabf34ebec1996a53088 (diff) | |
| download | pfsense-51f4e64b319afe3609b6e3d66e7467fa4ba3dcc2.zip pfsense-51f4e64b319afe3609b6e3d66e7467fa4ba3dcc2.tar.gz | |
Add a small script to disable APM on ATA drives if they claim to support it. Leaving this on will kill drives long-term, especially laptop drives, by generating excessive Load Cycles.
The APM bit set will persist until the drive is power cycled, so it's necessary to run on each boot to be sure.
Diffstat (limited to 'etc/rc.disable_hdd_apm')
| -rw-r--r-- | etc/rc.disable_hdd_apm | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/etc/rc.disable_hdd_apm b/etc/rc.disable_hdd_apm new file mode 100644 index 0000000..58f3734 --- /dev/null +++ b/etc/rc.disable_hdd_apm @@ -0,0 +1,10 @@ +#!/bin/sh + +ATAIDLE=/usr/local/sbin/ataidle +for i in /dev/ad?; do + SUPPORTED=`${ATAIDLE} ${i} | grep "APM Supported" | awk '{print $3;}'` + if [ "${SUPPORTED}" = "yes" ] ; then + echo Disabling APM on $i + ${ATAIDLE} -P 0 ${i} + fi +done |
