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linux 硬盘使用情况查看

2015-11-11 11:15 465 查看
一般linux下硬盘的使用情况查看命令是：

fdisk -l

[root@oiooooio ~]# fdisk -l

Disk /dev/sda: 32.2 GB, 32212254720 bytes
255 heads, 63 sectors/track, 3916 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00057fc5

Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          64      512000   83  Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2              64        3917    30944256   8e  Linux LVM

Disk /dev/mapper/vg_oiooooio-lv_root: 28.5 GB, 28462546944 bytes
255 heads, 63 sectors/track, 3460 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/mapper/vg_oiooooio-lv_swap: 3221 MB, 3221225472 bytes
255 heads, 63 sectors/track, 391 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000


df -h

[root@oiooooio ~]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg_oiooooio-lv_root
26G   20G  5.7G  78% /
tmpfs                 932M     0  932M   0% /dev/shm
/dev/sda1             477M   67M  385M  15% /boot


但是如果要像windows任务管理器一样能实时查看硬盘当前使用率的，那么命令是:iostat -x 1 10

[root@oiooooio ~]# iostat -x 1 10
Linux 2.6.32-573.7.1.el6.x86_64 (oiooooio)      11/11/2015      _x86_64_        (2 CPU)

avg-cpu:  %user   %nice %system %iowait  %steal   %idle
0.97    0.00    0.91    0.08    0.00   98.04

Device:         rrqm/s   wrqm/s     r/s     w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
sda               3.81    80.66    4.94   10.95   134.67   732.87    54.62     0.12    7.56   0.31   0.50
dm-0              0.00     0.00    8.60   91.61   129.84   732.87     8.61     2.04   20.36   0.05   0.49
dm-1              0.00     0.00    0.06    0.00     0.45     0.00     8.00     0.00    0.44   0.35   0.00

avg-cpu:  %user   %nice %system %iowait  %steal   %idle
0.00    0.00    0.00    0.00    0.00  100.00

Device:         rrqm/s   wrqm/s     r/s     w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
sda               0.00     0.00    0.00    0.00     0.00     0.00     0.00     0.00    0.00   0.00   0.00
dm-0              0.00     0.00    0.00    0.00     0.00     0.00     0.00     0.00    0.00   0.00   0.00
dm-1              0.00     0.00    0.00    0.00     0.00     0.00     0.00     0.00    0.00   0.00   0.00

^C
[root@oiooooio ~]#
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