Unmounted/unpartitioned HDD wakes up ~4 times per day on CentOS
I have a small CentOS server (minimal installation). It has HDD connected, but this HDD is not partitioned. Just a blank unused drive for future tasks. I want this HDD to stay in sleep mode when it is not used. It has the following spindown settings
hdparm -B 127 -S 240 /dev/sdb #(Sleep after 20min of inactivity.)
Despite this configuration, something still wakes this HDD up ~4 times per day without doing nothing. So, is there a way to trace what process wakes this drive up? I couldn't find any config file, where sdb is mentioned. No cron jobs or anything. It's a minimal CentOS installation.
Thanks!
linux hard-drive centos sleep
asked Jan 2 at 10:01
M. V.M. V.
111
add a comment |
I have a small CentOS server (minimal installation). It has HDD connected, but this HDD is not partitioned. Just a blank unused drive for future tasks. I want this HDD to stay in sleep mode when it is not used. It has the following spindown settings
hdparm -B 127 -S 240 /dev/sdb #(Sleep after 20min of inactivity.)
Despite this configuration, something still wakes this HDD up ~4 times per day without doing nothing. So, is there a way to trace what process wakes this drive up? I couldn't find any config file, where sdb is mentioned. No cron jobs or anything. It's a minimal CentOS installation.
Thanks!
linux hard-drive centos sleep
asked Jan 2 at 10:01
M. V.M. V.
111
add a comment |
I have a small CentOS server (minimal installation). It has HDD connected, but this HDD is not partitioned. Just a blank unused drive for future tasks. I want this HDD to stay in sleep mode when it is not used. It has the following spindown settings
hdparm -B 127 -S 240 /dev/sdb #(Sleep after 20min of inactivity.)
Despite this configuration, something still wakes this HDD up ~4 times per day without doing nothing. So, is there a way to trace what process wakes this drive up? I couldn't find any config file, where sdb is mentioned. No cron jobs or anything. It's a minimal CentOS installation.
Thanks!
linux hard-drive centos sleep
asked Jan 2 at 10:01
M. V.M. V.
111
I have a small CentOS server (minimal installation). It has HDD connected, but this HDD is not partitioned. Just a blank unused drive for future tasks. I want this HDD to stay in sleep mode when it is not used. It has the following spindown settings
hdparm -B 127 -S 240 /dev/sdb #(Sleep after 20min of inactivity.)
Despite this configuration, something still wakes this HDD up ~4 times per day without doing nothing. So, is there a way to trace what process wakes this drive up? I couldn't find any config file, where sdb is mentioned. No cron jobs or anything. It's a minimal CentOS installation.
Thanks!
linux hard-drive centos sleep
linux hard-drive centos sleep
asked Jan 2 at 10:01
M. V.M. V.
111
asked Jan 2 at 10:01
M. V.M. V.
111
asked Jan 2 at 10:01
M. V.M. V.
111
asked Jan 2 at 10:01
M. V.M. V.
111
asked Jan 2 at 10:01
M. V.M. V.
111
111
add a comment |
add a comment |
1 Answer
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I'll answer this myself.
The drive was woken up by smartd, which polls disks every 30 minutes by default. It has the following config line (/etc/smartmontools/smartd.conf):
DEVICESCAN -H -m root -M exec /usr/libexec/smartmontools/smartdnotify -n standby,10,q
This line tells smartd to check all identified disks. And -n standby,10,q tells it to quietly ignore any disks in standby mode, but wake them up after 10 failed attempts.
So, basically, i changed 10 to 671, meaning now the disk will be in sleep mode up to 2 weeks.
answered Jan 8 at 16:44
M. V.M. V.
111
add a comment |
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1 Answer
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1 Answer
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active
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active
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votes
I'll answer this myself.
The drive was woken up by smartd, which polls disks every 30 minutes by default. It has the following config line (/etc/smartmontools/smartd.conf):
DEVICESCAN -H -m root -M exec /usr/libexec/smartmontools/smartdnotify -n standby,10,q
This line tells smartd to check all identified disks. And -n standby,10,q tells it to quietly ignore any disks in standby mode, but wake them up after 10 failed attempts.
So, basically, i changed 10 to 671, meaning now the disk will be in sleep mode up to 2 weeks.
answered Jan 8 at 16:44
M. V.M. V.
111
add a comment |
I'll answer this myself.
The drive was woken up by smartd, which polls disks every 30 minutes by default. It has the following config line (/etc/smartmontools/smartd.conf):
DEVICESCAN -H -m root -M exec /usr/libexec/smartmontools/smartdnotify -n standby,10,q
This line tells smartd to check all identified disks. And -n standby,10,q tells it to quietly ignore any disks in standby mode, but wake them up after 10 failed attempts.
So, basically, i changed 10 to 671, meaning now the disk will be in sleep mode up to 2 weeks.
answered Jan 8 at 16:44
M. V.M. V.
111
add a comment |
I'll answer this myself.
The drive was woken up by smartd, which polls disks every 30 minutes by default. It has the following config line (/etc/smartmontools/smartd.conf):
DEVICESCAN -H -m root -M exec /usr/libexec/smartmontools/smartdnotify -n standby,10,q
This line tells smartd to check all identified disks. And -n standby,10,q tells it to quietly ignore any disks in standby mode, but wake them up after 10 failed attempts.
So, basically, i changed 10 to 671, meaning now the disk will be in sleep mode up to 2 weeks.
answered Jan 8 at 16:44
M. V.M. V.
111
I'll answer this myself.
The drive was woken up by smartd, which polls disks every 30 minutes by default. It has the following config line (/etc/smartmontools/smartd.conf):
DEVICESCAN -H -m root -M exec /usr/libexec/smartmontools/smartdnotify -n standby,10,q
This line tells smartd to check all identified disks. And -n standby,10,q tells it to quietly ignore any disks in standby mode, but wake them up after 10 failed attempts.
So, basically, i changed 10 to 671, meaning now the disk will be in sleep mode up to 2 weeks.
answered Jan 8 at 16:44
M. V.M. V.
111
answered Jan 8 at 16:44
M. V.M. V.
111
answered Jan 8 at 16:44
M. V.M. V.
111
answered Jan 8 at 16:44
M. V.M. V.
111
111
add a comment |
add a comment |
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