Linux 系统资源查看及硬件故障排查（qbit）

# 发行版cat /etc/issuelsb_release -a# 内核版本uname -acat /proc/version

top# ORhtop

# 查看CPU信息lshw -c cpu # 推荐lscpucat /proc/cpuinfo
# 查看CPU型号cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c
# 总核数 = 物理CPU个数 X 每颗物理CPU的核数 # 总逻辑CPU数 = 物理CPU个数 X 每颗物理CPU的核数 X 超线程数
# 查看物理CPU个数cat /proc/cpuinfo| grep "physical id"| sort| uniq| wc -l
# 查看每个物理CPU中core的个数(即核数)cat /proc/cpuinfo| grep "cpu cores"| uniq
# 查看逻辑CPU的个数cat /proc/cpuinfo| grep "processor"| wc -l

free -hcat /proc/meminfo# 查看内存条信息lshw -c memory

sudo hdparm -i /dev/sda | grep "Model"

fio -filename=/dev/sda -direct=1 -iodepth 1 -thread -rw=randrw -rwmixread=70 -ioengine=psync -bs=16k -size=15G -numjobs=20 -runtime=60 -group_reporting -name=mytest

hdparm -Tt --direct /dev/sda

$ sudo hdparm -I /dev/sda | grep Rotation   Nominal Media Rotation Rate: 5400$ sudo sg_vpd -a  /dev/sda | grep rpm   Nominal rotation rate: 5400 rpm

# 磁盘容量及分区状况（不能查看未挂载分区）df -Th
# 磁盘容量及分区状况（可以查看未挂载分区）sudo fdisk -lsudo lsblk -f
# 查看磁盘 UUID（可以查看未挂载分区）sudo blkid
# /lib 目录大小du -sh /lib # /lib 子目录大小du -sh /lib/*

iotop

# d 查看磁盘读写状况# m 以 MB 为单位# 2 每 2s 统计一次# 3 一共统计 3 次iostat -dm 2 3

$ sudo smartctl -H /dev/sdasmartctl 7.1 2019-12-30 r5022 [x86_64-linux-5.4.0-89-generic] (local build)Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===SMART overall-health self-assessment test result: PASSED

$ sudo smartctl -i /dev/sdasmartctl 7.1 2019-12-30 r5022 [x86_64-linux-5.4.0-89-generic] (local build)Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===Model Family:     Seagate Barracuda 7200.14 (AF)Device Model:     ST2000DM001-1ER164Serial Number:    W4Z40M4RLU WWN Device Id: 5 000c50 09d433979Firmware Version: CC26User Capacity:    2,000,398,934,016 bytes [2.00 TB]Sector Sizes:     512 bytes logical, 4096 bytes physicalRotation Rate:    7200 rpmForm Factor:      3.5 inchesDevice is:        In smartctl database [for details use: -P show]ATA Version is:   ACS-2, ACS-3 T13/2161-D revision 3bSATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)Local Time is:    Wed Nov  3 15:42:35 2021 CSTSMART support is: Available - device has SMART capability.SMART support is: Enabled

$ sudo smartctl -A /dev/nvme1n1smartctl 7.1 2019-12-30 r5022 [x86_64-linux-5.4.0-89-generic] (local build)Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF SMART DATA SECTION ===SMART/Health Information (NVMe Log 0x02)Critical Warning:                   0x00Temperature:                        33 CelsiusAvailable Spare:                    100%Available Spare Threshold:          10%Percentage Used:                    0%Data Units Read:                    2,905,845 [1.48 TB]Data Units Written:                 37,741,109 [19.3 TB]Host Read Commands:                 24,704,077Host Write Commands:                171,328,846Controller Busy Time:               991Power Cycles:                       32Power On Hours:                     5,525Unsafe Shutdowns:                   21Media and Data Integrity Errors:    0Error Information Log Entries:      1Warning  Comp. Temperature Time:    0Critical Comp. Temperature Time:    0