Take the 2-minute tour ×
Server Fault is a question and answer site for professional system and network administrators. It's 100% free, no registration required.

Made an upgrade of RAID firmware and latency as it seems have increased.

Could you please advise on the most accurate way to examine disk read and write latencies?

share|improve this question
    
time command can be used. copy a big file and calculate how much time it taking –  vnix27 Feb 22 '11 at 13:29
    
Look at this question: Linux Tool command to check file system performance –  coredump Feb 22 '11 at 14:09
add comment

2 Answers

up vote 2 down vote accepted

IOzone great benchmark.

Run Random Read, Random Write, Random Mix test to check latencies.

share|improve this answer
add comment

The common tool in Linux hard disk tuning and basic performance monitoring is hdparm.

share|improve this answer
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.