Linux Disk Speed Test


Disk speed is very important for database administrator and application. Because disk speed is very slow then you will see slowness automatically.


If you want to see disk speed and compare with another disk you can do disk speed test.

You can do disk speed test basically with following.

[root@MehmetSalih ]# dd if=/dev/zero of=deveci.zeroes bs=8M count=125


If you want to do disk test in detail you can use following script.

BASECOMMAND="time dd if=/dev/zero of=${REPOSITORY}/THIS_IS_A_DD_TEST bs=${BS} count=${COUNT}" 
for COMMAND in "${BASECOMMAND}" "${BASECOMMAND} conv=fdatasync" "${BASECOMMAND} oflag=direct" ; do 
echo ${COMMAND} 
echo "" 
echo "---------------------------------" 
echo "" 
echo "dd if=${REPOSITORY}/THIS_IS_A_DD_TEST of=/dev/null bs=${READBS}" 
dd if=${REPOSITORY}/THIS_IS_A_DD_TEST of=/dev/null bs=${READBS} 
echo "" 
echo "---------------------------------" 
echo "" 



Do you want to learn Linux System Administration for Beginners, then read the following articles.

About Mehmet Salih Deveci

I am Founder of SysDBASoft IT and IT Tutorial and Certified Expert about Oracle & SQL Server database, Goldengate, Exadata Machine, Oracle Database Appliance administrator with 10+years experience.I have OCA, OCP, OCE RAC Expert Certificates I have worked 100+ Banking, Insurance, Finance, Telco and etc. clients as a Consultant, Insource or Outsource.I have done 200+ Operations in this clients such as Exadata Installation & PoC & Migration & Upgrade, Oracle & SQL Server Database Upgrade, Oracle RAC Installation, SQL Server AlwaysOn Installation, Database Migration, Disaster Recovery, Backup Restore, Performance Tuning, Periodic Healthchecks.I have done 2000+ Table replication with Goldengate or SQL Server Replication tool for DWH Databases in many clients.If you need Oracle DBA, SQL Server DBA, APPS DBA,  Exadata, Goldengate, EBS Consultancy and Training you can send my email adress [email protected].-                                                                                                                                                                                                                                                 -Oracle DBA, SQL Server DBA, APPS DBA,  Exadata, Goldengate, EBS ve linux Danışmanlık ve Eğitim için  [email protected] a mail atabilirsiniz.

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