View the hard disk status of the centos Server

View the hard disk status of the centos Server

If HDTune is available in windows, you can view the disk status to prevent the disk from being crashed. In CentOS, SMART (Self-Monitoring, Analysis and Reporting Technology System) also checks the disk status.

Http://www.smartmontools.org/

The following uses the dellR720 server as an example./dev/sda is a 1 TB scsi interface hard disk, And/dev/sdd is a RAID 5 made of three disks.

# Df-h # view the disk name

# Dmesg | grep sdd # view the disk info in the boot Information

Sd 0: 2: 0: 0: [sdd] Attached SCSI disk

# Hdparm-I/dev/sda # view disk hardware information, enable functions, and so on. The information is particularly detailed.

Use smart to view the disk status:

# Yuminstallsmartmontools // install SMART # Smartctl-H/dev/sdd // view disk health status smartctl5.432012-06-30r3573[x86_64-linux-3.10.56-11.el6.centos.alt.x86_64]( local build) Copyright(C)2002-12byBruceAllen, http: //smartmontools .sourceforge.net SMARTHealthStatus:OK

# Smartctl-A/dev/sda or smartctl -- all/dev/sda # smart Information of the hard disk

#smartctl-a/dev/sdd smartctl5.432012-06-30r3573[x86_64-linux-3.10.56-11.el6.centos.alt.x86_64]( local build) Copyright(C)2002-12byBruceAllen, http: //smartmontools .sourceforge.net Vendor:DELL Product:PERCH310 Revision:2.12 UserCapacity:598,879,502,336bytes[598GB] Logicalblocksize:512bytes LogicalUnit id : Serialnumber: Device type :disk LocalTimeis:WedJan1415:37:392015CST DevicedoesnotsupportSMART ErrorCounterloggingnotsupported DevicedoesnotsupportSelfTestlogging

The message "Device does not support SMART" is displayed. view the information as follows:

View the status of the first disk in raid5

# Smartctl-a-d megaraid, 0/dev/sdd

You can also view the status of the second and third disks to speed up the nagios and zabbix alarms based on your own monitoring conditions.

# Smartctl-a-d megaraid, 1/dev/sdd

# Smartctl-a-d megaraid, 2/dev/sdd

In addition, the usage of smartctl is described in detail:

#smartctl-h Usage:smartctl[options]device ============================================SHOWINFORMATIONOPTIONS===== -h,--help,--usage Displaythishelpand exit -V,--version,--copyright,--license Printlicense,copyright,andversioninformationand exit -i,--info Showidentityinformation for device -gNAME,--get=NAME Getdevicesetting:all,aam,apm,lookahead,security,wcache -a,--all ShowallSMARTinformation for device -x,--xall Showallinformation for device --scan Scan for devices --scan- open Scan for devicesandtryto open eachdevice ==================================SMARTCTLRUN-TIMEBEHAVIOROPTIONS===== -qTYPE,--quietmode=TYPE(ATA) Setsmartctlquietmodetooneof:errorsonly,silent,noserial -dTYPE,--device=TYPE Specifydevice type tooneof:ata,scsi,sat[,auto][,N][+TYPE], usbcypress[,X],usbjmicron[,x][,N],usbsunplus,marvell,areca,N /E , 3ware,N,hpt,L /M/N ,megaraid,N,cciss,N,auto, test -TTYPE,--tolerance=TYPE(ATA) Tolerance:normal,conservative,permissive,verypermissive -bTYPE,--badsum=TYPE(ATA) Setactiononbadchecksumtooneof:warn, exit ,ignore -rTYPE,--report=TYPE Reporttransactions(see man page) -nMODE,--nocheck=MODE(ATA) Nocheck if :never, sleep ,standby,idle(see man page) ==============================DEVICEFEATUREENABLE /DISABLE COMMANDS===== -sVALUE,--smart=VALUE Enable /disable SMARTondevice(on /off ) -oVALUE,--offlineauto=VALUE(ATA) Enable /disable automaticofflinetestingondevice(on /off ) -SVALUE,--saveauto=VALUE(ATA) Enable /disable Attributeautosaveondevice(on /off ) -sNAME[,VALUE],-- set =NAME[,VALUE] Enable /disable/change devicesetting:aam,[N|off],apm,[N|off], lookahead,[on|off],security-freeze,standby,[N|off|now], wcache,[on|off] =======================================READANDDISPLAYDATAOPTIONS===== -H,--health ShowdeviceSMARThealthstatus -c,--capabilities(ATA) ShowdeviceSMARTcapabilities -A,--attributes ShowdeviceSMARTvendor-specificAttributesandvalues -fFORMAT,-- format =FORMAT(ATA) Setoutput format for attributes:old,brief,hex[, id |val] -lTYPE,--log=TYPE Showdevicelog.TYPE:error,selftest,selective,directory[,g|s], xerror[,N][,error],xselftest[,N][,selftest], background,sasphy[,reset],sataphy[,reset], scttemp[sts,hist],scttempint,N[,p], scterc[,N,M],devstat[,N],ssd, gplog,N[,RANGE],smartlog,N[,RANGE] - v N,OPTION,--vendorattribute=N,OPTION(ATA) SetdisplayOPTION for vendorAttributeN(see man page) -FTYPE,--firmwarebug=TYPE(ATA) Usefirmwarebugworkaround:none,samsung,samsung2, samsung3,swapid -PTYPE,--presets=TYPE(ATA) Drive-specificpresets:use,ignore,show,showall -B[+]FILE,--drivedb=[+]FILE(ATA) Readandreplace[add]drivedatabasefromFILE [defaultis+ /etc/smart_drivedb .h and then /usr/share/smartmontools/drivedb .h] ============================================DEVICESELF-TESTOPTIONS===== -tTEST,-- test =TEST Run test .TEST:offline,short,long,conveyance,force,vendor,N, select ,M-N,pending,N,afterselect,[on|off] -C,--captive Do test in captivemode(alongwith-t) -X,--abort Abortanynon-captive test ondevice ===================================================SMARTCTLEXAMPLES===== smartctl--all /dev/hda (PrintsallSMARTinformation) smartctl--smart=on--offlineauto=on--saveauto=on /dev/hda (EnablesSMARTonfirstdisk) smartctl-- test =long /dev/hda (Executesextendeddiskself- test ) smartctl--attributes--log=selftest--quietmode=errorsonly /dev/hda (PrintsSelf-Test&Attributeerrors) smartctl--all--device=3ware,2 /dev/sda smartctl--all--device=3ware,2 /dev/twe0 smartctl--all--device=3ware,2 /dev/twa0 smartctl--all--device=3ware,2 /dev/twl0 (PrintsallSMARTinfo for 3rdATAdiskon3wareRAIDcontroller) smartctl--all--device=hpt,1 /1/3 /dev/sda (PrintsallSMARTinfo for theSATAdiskattachedtothe3rdPMPort ofthe1stchannelonthe1stHighPointRAIDcontroller) smartctl--all--device=areca,3 /1 /dev/sg2 (PrintsallSMARTinfo for 3rdATAdiskofthe1stenclosure onArecaRAIDcontroller)

This article from the "Jin Ge tie Ma Xing feiyan" blog, please be sure to keep this source http://bbotte.blog.51cto.com/6205307/1603985