Firmware to spin-down HDD?

[tmsulica]

yes that was helpfull. THANK YOU

But i have a problem when i run your script, my command line freezes and i have to exit with ctrl+c and hdd won't stop spinning. how can i test this ?

and by the way thank you very much for your help !

[admin@RouterASSUS root]$ /usr/sbin/scsi-stop /dev/sda
/dev/sda is not a SCSI block device

by the way my firmware is not oleg's latest .10 , is 1.9.2.7-rtn-r3497 as i said . hdd seems that doesn't work via scsi mode or something is changed ....

[wpte]

yes that was helpfull. THANK YOU

But i have a problem when i run your script, my command line freezes and i have to exit with ctrl+c and hdd won't stop spinning. how can i test this ?

and by the way thank you very much for your help !

quoting:

this can be used like:

/usr/local/sbin/scsi-stop.sh sda &
/usr/local/sbin/scsi-stop.sh sdb &

don't forget the & character, it will make the script run in the background

by the way my firmware is not oleg's latest .10 , is 1.9.2.7-rtn-r3497 as i said . hdd seems that doesn't work via scsi mode or something is changed ....

I know I use this script on my rt-n16.
if it says "/dev/sda is not a SCSI block device" it might not be possible.
it did work on .10/d firmware for you?

[tmsulica]

adn yes: ........

[admin@RouterASSUS root]$ ls /dev/ | grep sd
sda
sda1
sda2
sda3

but

[admin@RouterASSUS root]$ /usr/sbin/scsi-stop /dev/sda
/dev/sda is not a SCSI block device

[tmsulica]

quoting:


don't forget the & character, it will make the script run in the background


I know I use this script on my rt-n16.
if it says "/dev/sda is not a SCSI block device" it might not be possible.
it did work on .10/d firmware for you?

Yes you'r right it was the & symbol.

in .10 firmware didn't work ( so i thought) because my hdd wasn't supported. but i didn't have those errors. is an another way to stop my hdd ? thanks for your support !

[wpte]

in .10 firmware didn't work ( so i thought) because my hdd wasn't supported. but i didn't have those errors. is an another way to stop my hdd ? thanks for your support !

hmmm yes, the .10 firmware trick is the same as this one... just the script to check the activity is different. so then you should probably use the sdparm version rumenchooo uses.
if that doesn't work either... no idea

[tmsulica]

OK so i tryied Rumen Code but i get :

# ./hdd-stop.sh
syntax error
syntax error
syntax error
syntax error
syntax error
syntax error
syntax error
syntax error
syntax error
syntax error
syntax error
syntax error
syntax error
syntax error
syntax error
syntax error
syntax error
syntax error
syntax error
syntax error

"ctrl+c"

[admin@RouterASSUS root]$

what is wrong ?

PS i switched hdd disk name from sdd to sda. and i saw running mc that i do not have an /date directory on /opt/bin.

[tmsulica]

but one more question wpte ... on .10 firmware existed path /dev/scsi/host0/bus0/target0/lun0/disc

now in this build with what is replaced ?

because /dev/sda is not an SCSI block device, so on this build where is the scsi block device ??

10x

[rumenchooo]

Hey tmsulica ,

so you have one HDD (sda)?

Try this one.

1.Check the paths/location of your programs

/opt/bin/sdparm
/opt/bin/sync
/opt/bin/sg_start
etc..

are they correct for you??

2.Did you install sdparm and sg3-utils??

3.Put this line in /opt/etc/crontab:
*/10 * * * * admin /opt/whatever-you-want/that_script
It will check fo activity every 10 min.

4.Are the commands worked for you by himself????
sdparm --flexible --command=stop /dev/sda &>/dev/null
sdparm --flexible --command=sync /dev/sda &>/dev/null
sg_start 0 --pc=2 /dev/sda
awk '/sda/ {print $12}' /proc/diskstats
etc.....

But even if you succeed , the disk will not remain down , because firmware need to access it.(log , swap ... etc)!!!
Even cron need to read that script from HDD!!!
So spin up again ->> spin down --> spin up --> spin down.
And that is for VERY short periond.
As you know HDD don`t like spin up/donw too much.

You have to install /opt on the flash stick and use HDD only for storage.


#!/bin/bash
DISKNAME=sda
a=0
#check 70 times with 0.1s gaps,
#and go on adding
for i in `seq 0 70`
do
b=`awk '/$DISKNAME/ {print $12}' /proc/diskstats`
a=`expr $a + $b`
sleep 0.1s
done
echo $a
if [ $a == 0 ]
then
echo "$DISKNAME No Activity-->>spindown" >> /opt/var/log/syslog.log
/opt/bin/sync
/opt/bin/sdparm --flexible --command=sync /dev/$DISKNAME &>/dev/null
/opt/bin/sdparm --flexible --command=stop /dev/$DISKNAME &>/dev/null
/opt/bin/sdparm --flexible --command=stop /dev/$DISKNAME &>/dev/null
/opt/bin/sg_start --stop /dev/$DISKNAME
/opt/bin/sg_start --stop /dev/$DISKNAME
/opt/bin/sg_start 0 --pc=2 /dev/$DISKNAME
/opt/bin/sg_start 0 --pc=2 /dev/$DISKNAME
/opt/bin/sg_start 0 --pc=3 /dev/$DISKNAME
/opt/bin/sg_start 0 --pc=3 /dev/$DISKNAME
else
echo "$DISKNAME Active-->wait ....." >> /opt/var/log/syslog.log
fi
exit 0




Regards
Rumen