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This article is about how to carry out orangepi linux hard disk automatic hibernation, the editor thinks it is very practical, so I share it with you to learn. I hope you can get something after reading this article.

In order to extend the service life of the hard disk, when the hard disk is not in use, it is necessary to let the hard disk hibernate. At present, there are some software that can do this automatically, such as hdparm, hd-idle and sdparm. Which one to use depends on the USB to SATA controller and the hard disk itself. Of course, what we are talking about here are mechanical hard drives, but solid state drives have not been studied.

Note: do not let the mechanical hard disk sleep and wake up frequently, which will put a heavy load on the motor and bearings and aggravate the wear and tear of the hard disk. The minimum dormancy time recommended by general manufacturers is 3-5 minutes.

First check the hard disk device name, which is usually / dev/sda,dev/sdb and so on.

Sudo blkid

For example, output

/ dev/mmcblk0p1: SEC_TYPE= "msdos" LABEL= "boot" UUID= "15CD-3B79" TYPE= "vfat"

/ dev/mmcblk0p2: UUID= "13d368bf-6dbf-4751-8ba1-88bed06bef77" TYPE= "ext4"

Dev/sda1: UUID= "7e623443-f19a-4564-8e60-e9d2170ac32a" TYPE= "ext4"

Dev/sdb1: LABEL= "COLORSPACE" UUID= "F8E6-4FDB" TYPE= "vfat"

/ dev/sdb2: UUID= "3007-F316" TYPE= "exfat"

The hard disk device is named / dev/sdb, and the hard disk has two partitions

Install and configure hdparm

First test whether hdparm is supported.

Install hdparm

Sudo apt-get install hdparm-y

Make sure your hard drive supports hdparm

Sudo hdparm-y / dev/sdb

If you output the following result, it indicates support

/ dev/sdb:issuing standby command

If you see output similar to the following, it is not supported. You can skip to hd-idle or sdparm

/ dev/sda:issuing standby command

SG_IO: bad/missing sense data, sb []: 70 00 05 00 00 00 0a 00 00 00 20 00 00 00

Check whether the hard disk supports write caching

Sudo hdparm-I / dev/sdb | grep 'Write cache'

If you see * (asterisk), support it.

* Write cache

If you do not see * (asterisk), it is not supported.

Write cache

Edit configuration file

Sudo vim / etc/hdparm.conf

The spindown_time value is multiplied by 5 to get the total time (in seconds). For example, if you want to configure hibernation for 10 minutes, spindown_time = 10 * 60 / 5 = 120

Add at the end of the file

/ dev/sdb {

Write_cache = on

Spindown_time = 120

}

If write caching is not supported, remove write_cache = on.

Restart the hdparm service

Sudo service hdparm restart

For more hdparm configuration, please refer to this (http://www.linux-magazine.com/Online/Features/Tune-Your-Hard-Disk-with-hdparm)

Install and configure hd-idle

If your hard drive does not support hdparm, or if you just want to try hd-idle, you can delete hdparm

Sudo apt-get remove hdparm-y

Hd-idle uses a special system file to detect disk activity, without which hd-idle cannot be used. Input

Cat / proc/diskstats

You should see the following output, and if prompted that a file or directory cannot be found, hd-idle is not supported.

8 16 sdb 5604 130363 146538 16780 1814 51838 429152 763380 0 18230 780150

8 17 sdb1 5075 130363 139418 15370 80 8 10 0 8680 15370

8 18 sdb2 512 0 6984 1290 1805 51838 429144 763360 0 9770 764650

Self-compilation of hd-idle

Sudo apt-get install build-essential fakeroot debhelper-y

Get the source code

Wget http://sourceforge.net/projects/hd-idle/files/hd-idle-1.05.tgz

Unzip it into the directory

Tar-xvf hd-idle-1.05.tgz & & cd hd-idle

Compilation and installation

Dpkg-buildpackage-rfakeroot

Sudo dpkg-I.. / hd-idle_*.deb

Continue to check if the hard drive supports hd-idle

Sudo hd-idle-I 0-a sda-I 300-d

You should see output like this

Probing sda: reads: 13418, writes: 594344

Probing sdb: reads: 146538, writes: 429152

Press Ctrl+C to stop hd-idle

Edit configuration file

Sudo vim / etc/default/hd-idle

Change the following to enable hd-idle

START_HD_IDLE=true

Adjust idle time to 10 minutes (60 seconds * 10)

HD_IDLE_OPTS= "- a sda-I 600-l / var/log/hd-idle.log"

Restart the service

Sudo service hd-idle restart

If hd-idle doesn't support it, you can try sdparm.

Install and configure sdparm

Delete hdparm and hd-idle first

Sudo apt-get remove hdparm-y

Sudo dpkg-r hd-idle

Install sdparm

Sudo apt-get install sdparm-y

Test whether sdparm is supported, stop all hard disk operations, enter

Sydo sdparm-flexible-command=stop / dev/sdb

You should see the following output

/ dev/sdb: SANHO IUSBPORT 0

If you need to hibernate the hard drive every 10 minutes, you can use the following crontab command

Sudo crontab-l | {cat; echo "/ 10 * sdparm-- command=stop / dev/sda";} | sudo crontab-

After the above twists and turns, you can finally rest assured that you don't have to worry about the hard drive turning 24 hours a day.

The above is how to carry out orangepi linux hard disk automatic hibernation, the editor believes that there are some knowledge points that we may see or use in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.

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