linux ubuntu机械硬盘休眠设置

发布于:2024-07-10 ⋅ 阅读:(17) ⋅ 点赞:(0)

1. 前言

最近搞了个nas机箱,里面可以装4块机箱硬盘,J1900u, 虽然有黑群晖系统,但是总感觉不够灵活(对于raid 硬盘模式我是完全用不上,读写速度没需求,数据安全性也没需求,最主要是要灵活),所有最终还是装了ubuntu server。
那么对于机械硬盘,硬盘休眠是我需要研究的。虽然是垃圾硬盘,软件层面上能延长寿命还是尽量延长一下吧。

2. 工具

sudo apt install hdparm
hdparm -h
hdparm - get/set hard disk parameters - version v9.60, by Mark Lord.

Usage:  hdparm  [options] [device ...]

Options:
 -a   Get/set fs readahead
 -A   Get/set the drive look-ahead flag (0/1)
 -b   Get/set bus state (0 == off, 1 == on, 2 == tristate)
 -B   Set Advanced Power Management setting (1-255)
 -c   Get/set IDE 32-bit IO setting
 -C   Check drive power mode status
 -d   Get/set using_dma flag
 -D   Enable/disable drive defect management
 -E   Set cd/dvd drive speed
 -f   Flush buffer cache for device on exit
 -F   Flush drive write cache
 -g   Display drive geometry
 -h   Display terse usage information
 -H   Read temperature from drive (Hitachi only)
 -i   Display drive identification
 -I   Detailed/current information directly from drive
 -J   Get/set Western DIgital "Idle3" timeout for a WDC "Green" drive (DANGEROUS)
 -k   Get/set keep_settings_over_reset flag (0/1)
 -K   Set drive keep_features_over_reset flag (0/1)
 -L   Set drive doorlock (0/1) (removable harddisks only)
 -m   Get/set multiple sector count
 -M   Get/set acoustic management (0-254, 128: quiet, 254: fast)
 -n   Get/set ignore-write-errors flag (0/1)
 -N   Get/set max visible number of sectors (HPA) (VERY DANGEROUS)
 -p   Set PIO mode on IDE interface chipset (0,1,2,3,4,...)
 -P   Set drive prefetch count
 -q   Change next setting quietly
 -Q   Get/set DMA queue_depth (if supported)
 -r   Get/set device readonly flag (DANGEROUS to set)
 -R   Get/set device write-read-verify flag
 -s   Set power-up in standby flag (0/1) (DANGEROUS)
 -S   Set standby (spindown) timeout
 -t   Perform device read timings
 -T   Perform cache read timings
 -u   Get/set unmaskirq flag (0/1)
 -U   Obsolete
 -v   Use defaults; same as -acdgkmur for IDE drives
 -V   Display program version and exit immediately
 -w   Perform device reset (DANGEROUS)
 -W   Get/set drive write-caching flag (0/1)
 -x   Obsolete
 -X   Set IDE xfer mode (DANGEROUS)
 -y   Put drive in standby mode
 -Y   Put drive to sleep
 -z   Re-read partition table
 -Z   Disable Seagate auto-powersaving mode
 --dco-freeze      Freeze/lock current device configuration until next power cycle
 --dco-identify    Read/dump device configuration identify data
 --dco-restore     Reset device configuration back to factory defaults
 --dco-setmax      Use DCO to set maximum addressable sectors
 --direct          Use O_DIRECT to bypass page cache for timings
 --drq-hsm-error   Crash system with a "stuck DRQ" error (VERY DANGEROUS)
 --fallocate       Create a file without writing data to disk
 --fibmap          Show device extents (and fragmentation) for a file
 --fwdownload            Download firmware file to drive (EXTREMELY DANGEROUS)
 --fwdownload-mode3      Download firmware using min-size segments (EXTREMELY DANGEROUS)
 --fwdownload-mode3-max  Download firmware using max-size segments (EXTREMELY DANGEROUS)
 --fwdownload-mode7      Download firmware using a single segment (EXTREMELY DANGEROUS)
 --fwdownload-modee      Download firmware using mode E (min-size segments) (EXTREMELY DANGEROUS)
 --fwdownload-modee-max  Download firmware using mode E (max-size segments) (EXTREMELY DANGEROUS)
 --idle-immediate  Idle drive immediately
 --idle-unload     Idle immediately and unload heads
 --Iraw filename   Write raw binary identify data to the specfied file
 --Istdin          Read identify data from stdin as ASCII hex
 --Istdout         Write identify data to stdout as ASCII hex
 --make-bad-sector Deliberately corrupt a sector directly on the media (VERY DANGEROUS)
 --offset          use with -t, to begin timings at given offset (in GiB) from start of drive
 --prefer-ata12    Use 12-byte (instead of 16-byte) SAT commands when possible
 --read-sector     Read and dump (in hex) a sector directly from the media
 --repair-sector   Alias for the --write-sector option (VERY DANGEROUS)
 --sanitize-antifreeze-lock  Block sanitize-freeze-lock command until next power cycle
 --sanitize-block-erase      Start block erase operation
 --sanitize-crypto-scramble  Change the internal encryption keys that used for used data
 --sanitize-freeze-lock      Lock drive's sanitize features until next power cycle
 --sanitize-overwrite  PATTERN  Overwrite the internal media with constant PATTERN
 --sanitize-status           Show sanitize status information
 --security-help             Display help for ATA security commands
 --set-sector-size           Change logical sector size of drive
 --trim-sector-ranges        Tell SSD firmware to discard unneeded data sectors: lba:count ..
 --trim-sector-ranges-stdin  Same as above, but reads lba:count pairs from stdin
 --verbose                   Display extra diagnostics from some commands
 --write-sector              Repair/overwrite a (possibly bad) sector directly on the media (VERY DANGEROUS)


3. 使用方式

常用的几个参数:

sudo hdparm -y /dev/sdc  #进入待机模式
sudo hdparm -C /dev/sdc  #查询当前硬盘状态
sudo hdparm -S 1 /dev/sdc #5s后进入待机,实际乘以5倍

因为我的机械硬盘不支持APM 所有没做过多研究, standby mode已经可以满足我需求了。

修改配置文件:
/etc/hdparm.conf

/dev/sdb {
	force_spindown_time = 60
}

/dev/sdc {
	force_spindown_time = 60
}

这里配置要注意花括号后面的空格,另外设备支持uuid描述方式,可以参考example

上面的配置相当于 300s (5分钟) 无操作,硬盘自动进入 standy mode

立刻生效配置文件:

/usr/lib/pm-utils/power.d/95hdparm-apm resume

每次电脑重启后 会自动生效配置文件中的配置

4. 解决一个问题

在实际使用过长中,我发现如果在硬盘 standby mode状态下, 连接ssh 会使硬盘 变为active, 这不是我想要的。

sudo chmod -x /etc/update-motd.d/98-fsck-at-reboot

可以解决, 具体和ubuntu 的motd有关,没细研究,可以参考:链接