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（6）查看硬盘使用情况
[root@Master ~]# df -hT
Filesystem Type Size Used Avail Use% Mounted on
/dev/sda2 ext4 99G 561M 93G 1% /
tmpfs tmpfs 63G 76K 63G 1% /dev/shm
/dev/sda1 ext4 45M 38M 4。9M 89% /boot
/dev/sda3 ext4 50G 52M 47G 1% /home
/dev/sda6 ext4 13G 34M 13G 1% /tmp
/dev/sda7 ext4 99G 21G 73G 23% /usr
/dev/sdb1 ext4 84T 41T 40T 51% /PureDisk
（7） 硬盘检测命令smartctl
[root@Master ~]# smartctl -a /dev/sda
smartctl 5。43 2012-06-30 r3573 [x86_64-linux-2。6。32-642。el6。x86_64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools。sourceforge。net
Vendor: HP
Product: LOGICAL VOLUME
Revision: 3。56
User Capacity: 299,966,445,568 bytes [299 GB]
Logical block size: 512 bytes
Logical Unit id: 0x600508b1001cc8a1b9ec4dacc5ab35dc
Serial number: PDNNK0BRH9U0AG
Device type: disk
Local Time is: Mon Feb 5 13:13:33 2018 CST
Device supports SMART and is Enabled
Temperature Warning Disabled or Not Supported
SMART Health Status: OK
Error Counter logging not supported
Device does not support Self Test logging
五、查看网卡信息
（1)查看网卡硬件信息
[root@Master ~]# lspci | grep -i 'eth'
(2)查看系统的所有网络接口
[root@Master ~]# ifconfig -a
[root@Master ~]# ip link show
(3)查看某个网络接口的详细信息，例如eth0的详细参数和指标
[root@Master ~]# ethtool eth0
Settings for eth0:
Supported ports: [ FIBRE ]
Supported link modes: 10000baseT/Full
Supported pause frame use: No
Supports auto-negotiation: No
Advertised link modes: 10000baseT/Full
Advertised pause frame use: No
Advertised auto-negotiation: No
Speed: 10000Mb/s
Duplex: Full
Port: FIBRE
PHYAD: 0
Transceiver: external
Auto-negotiation: off
Supports Wake-on: d