linux-查看硬盘信息命令_linux查看磁盘空间 命令

linux-查看硬盘信息命令

• 一、 df命令
• 二、du 命令
• 三、lsblk命令
• 四、fdisk命令
• 五、smartctl命令

Linux查看硬盘信息的几种命令包括df、du、lsblk、fdisk、smartctl。

一、 df命令

df -h 是最常见的磁盘查看命令。它可以显示文件系统的总大小、已用空间、可用空间和挂载点等信息。

[root@FZCTP-DB ~]# df -hFilesystem  Size Used Avail Use% Mounted on/dev/mapper/centos-root 110G 46G 65G 42% //dev/mapper/centos-data 1.9T 1.5T 389G 80% /data/dev/vda2  1014M 196M 819M 20% /boot/dev/vdb1 1.0T 14G 1011G 2% /backuptmpfs  41G 12G 30G 29% /dev/shmtmpfs  32G 2.2G 30G 7% /runtmpfs  32G 0 32G 0% /sys/fs/cgrouptmpfs  6.3G 40K 6.3G 1% /run/user/0tmpfs  6.3G 0 6.3G 0% /run/user/1001/dev/sr0  4.3G 4.3G 0 100% /mnt/cdromdevtmpfs  32G 0 32G 0% /dev

“Size”表示文件系统总大小，“Used”表示已使用大小，“Avail”表示可用空间linux启动盘制作工具，“Use%”表示已使用百分比

二、du 命令

du命令是用于查看目录或文件占用磁盘空间的命令。

常用命令和选项，统计当前目录下的文件和目录占用空间

[root@FZCTP-DB ~]# du -sh *4.0K anaconda-ks.cfg4.0K Desktop4.0K Documents20K Downloads64K install.log12K install.log.syslog11G logs4.0K Music4.0K Pictures4.0K Public436K soft

-s, --summarize 仅显示总计，只列出最后加总的值。-h, --human-readable  以K，M，G为单位，提高信息的可读性。

常看指定目录下所有文件的大小（会遍历所有文件）

[root@FZCTP-DB tomcat]# du -h apache-tomcat-9.0.36/6.5M apache-tomcat-9.0.36/webapps/java/applets16K apache-tomcat-9.0.36/webapps/java/WEB-INF/classes/com/bstek/dorado/uploader/resolver20K apache-tomcat-9.0.36/webapps/java/WEB-INF/classes/com/bstek/dorado/uploader16K apache-tomcat-9.0.36/webapps/java/WEB-INF/classes/com/bstek/dorado/view/output20K apache-tomcat-9.0.36/webapps/java/WEB-INF/classes/com/bstek/dorado/view/resolver48K apache-tomcat-9.0.36/webapps/java/WEB-INF/classes/com/bstek/dorado/view12K apache-tomcat-9.0.36/webapps/java/WEB-INF/classes/com/bstek/dorado/web/resolver16K apache-tomcat-9.0.36/webapps/java/WEB-INF/classes/com/bstek/dorado/web88K apache-tomcat-9.0.36/webapps/java/WEB-INF/classes/com/bstek/dorado36K apache-tomcat-9.0.36/webapps/java/WEB-INF/classes/com/bstek/bdf2/export/excel12K apache-tomcat-9.0.36/webapps/java/WEB-INF/classes/com/bstek/bdf2/export/csv8.0K apache-tomcat-9.0.36/webapps/java/WEB-INF/classes/com/bstek/bdf2/export/pdf/model

将文件从大到小排序

du -sh * |sort -rh

三、lsblk命令

lsblk该命令可以列出系统中所有块设备（如硬盘、SSD 等）的信息，包括设备名称、容量、挂载点等。通过这个命令可以方便地了解系统硬件配置和磁盘分区情况。

[root@FZCTP-DB ~]# lsblkNAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTsda 8:0 0 558.9G 0 disk |-sda1 8:1 0 500M 0 part /boot/efi|-sda2 8:2 0 500M 0 part /boot`-sda3 8:3 0 557.9G 0 part |-vg_fzctpdb-LogVol00_swap (dm-0) 253:0 0 64G 0 lvm [SWAP] |-vg_fzctpdb-LogVol04_root (dm-1) 253:1 0 453.9G 0 lvm / |-vg_fzctpdb-LogVol03_var (dm-2) 253:2 0 20G 0 lvm /var |-vg_fzctpdb-LogVol02_usr (dm-3) 253:3 0 10G 0 lvm /usr `-vg_fzctpdb-LogVol01_tmp (dm-4) 253:4 0 10G 0 lvm /tmp

四、fdisk命令

fdisk 命令可以显示系统中所有硬盘的分区情况，包括分区类型、容量、起始位置等信息。通过这个命令可以查看系统磁盘的物理结构和分布情况。

[root@FZ-DB ~]# fdisk -lDisk /dev/sda: 600.1 GB, 600093712384 bytes255 heads, 63 sectors/track, 72957 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 262144 bytes / 262144 bytesDisk identifier: 0x00000000 Device Boot Start End Blocks Id System/dev/sda1  1 72958 586029015+ ee GPTPartition 1 does not start on physical sector boundary.Disk /dev/mapper/vg_fzctpdb-LogVol00_swap: 68.7 GB, 68719476736 bytes255 heads, 63 sectors/track, 8354 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 262144 bytes / 262144 bytesDisk identifier: 0x00000000Disk /dev/mapper/vg_fzctpdb-LogVol04_root: 487.4 GB, 487369736192 bytes255 heads, 63 sectors/track, 59252 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 262144 bytes / 262144 bytesDisk identifier: 0x00000000Disk /dev/mapper/vg_fzctpdb-LogVol03_var: 21.5 GB, 21474836480 bytes255 heads, 63 sectors/track, 2610 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 262144 bytes / 262144 bytesDisk identifier: 0x00000000Disk /dev/mapper/vg_fzctpdb-LogVol02_usr: 10.7 GB, 10737418240 bytes255 heads, 63 sectors/track, 1305 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 262144 bytes / 262144 bytesDisk identifier: 0x00000000Disk /dev/mapper/vg_fzctpdb-LogVol01_tmp: 10.7 GB, 10737418240 bytes255 heads, 63 sectors/track, 1305 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 262144 bytes / 262144 bytesDisk identifier: 0x00000000

五、smartctl命令

smartctl命令是用于检测硬盘健康状态并显示相关信息的命令。它可以显示硬盘的温度、寿命预测、错误记录等信息。

[root@FZ-DB ~]# smartctl -a /dev/sdasmartctl 5.43 2016-09-28 r4347 [x86_64-linux-2.6.32-696.el6.x86_64] (local build)Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.netVendor:  HP Product:  LOGICAL VOLUME Revision: 5.52User Capacity: 600,093,712,384 bytes [600 GB]Logical block size: 512 bytesLogical Unit id: 0x600508b1001c13ef256161d9825110eaSerial number: PDNLH0BRH981LP Device type: diskLocal Time is: Wed Jun 19 10:24:12 2024 CSTDevice supports SMART and is EnabledTemperature Warning Disabled or Not SupportedSMART Health Status: OKError Counter logging not supportedDevice does not support Self Test logging

https://www.linuxcool.com/lypkjzkmlff
https://zhuanlan.zhihu.com/p/688628108

工商注册知识