Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

What is the maximum read rate of the hard disks used in latest servers. I need this to estimate the running time of my application.

share|improve this question

migrated from stackoverflow.com Mar 28 '11 at 9:12

This question came from our site for professional and enthusiast programmers.

closed as off topic by Ivo Flipse Mar 28 '11 at 11:26

Questions on Super User are expected to relate to computer software or computer hardware within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.If this question can be reworded to fit the rules in the help center, please edit the question.

2  
depends heavily on distribution of reads and size of reads. Also what metric do you want to know? iops, mb/s, latency? Maybe you should just check a couple of benchmarks: tomshardware.com/charts/enterprise-hard-drive-charts-2010/… –  Eelke Mar 28 '11 at 9:03
add comment

1 Answer

There are many things that determine the speed of hard drive access and each is specific to the server and its configuration.

  • Modern SATA hard drives have a transfer limit of 6Gb/s
  • Some RAID arrangements can increase throughput, some can reduce throughput.
  • Hardware vs Software RAID can have a bearing on the speed, with Software RAID often being slower than Hardware.
  • The operating system in use on the server, and how it deals with caching and buffering have a massive influence on the overall speed of the hard disk access.

So we can't say really - you'd have to run some tests to see what kind of throughout you're getting on your specific server.

share|improve this answer
add comment