Tag Archives: IOPS

IOPS Calculator

Here are some of the links I have for IOPS calculators on my site: https://techish.net/hardware/raid-iops-mbps-and-more-excel-cheat-sheet/ https://techish.net/hardware/iops-calculator-and-raid-calculators-estimators/ Some useful information on some of the graphing I had done with SQLIO measurements https://techish.net/windows/sqlio-scripts-and-graphs/ https://techish.net/windows/visualizing-sqlio-disk-benchmark-results-using-a-pivotchart/ Testing Disk IO in Linux https://techish.net/linux/testing-disk-in-linux-using-fio/ Continue reading →

RAID, IOPS, MBps and more Excel Cheat Sheet

I’m working on an Excel spreadsheet (cheatsheet) that will allow for user input to calculate some of the following: Calculate IOPS, Usable Space, MB/s  based on Number of Disks, Spindle Speed, RAID type and Read/Write Percentages.Calculate Number of Disks required for IOPsCalculate/Convert MB/s to IOPSCalculate/Convert IOPS to MB/s It also contains some basic information and formulas: Formula for Total Raw IOPSFormula for Functional IOPSFormula for MB/s from IOPSFormula for IOPS Continue reading →

Testing Disk in Linux using fio

I recently discovered a utility called fio that allows you to benchmark disk subsystem in Linux. Here are the results for this test.
What is fio?
fio is an I/O tool meant to be used both for benchmark and stress/hardware verification. It has support for 13 different types of I/O engines (sync, mmap, libaio, posixaio, SG v3, splice, null, network, syslet, guasi, solarisaio, and more), I/O priorities (for newer Linux kernels), rate I/O, forked or threaded jobs, and much more. It can work on block devices Continue reading →

RAID, IOPS, MBps and more Excel Cheat Sheet

[stextbox id=alert]Hi Everyone!  I have taken the XLS file offline.  There were a ton of bugs, as pointed out in comments and through emails/Twitter.  I am working on solidifying the functions and migrating this to an actual application instead of Excel.   In the meantime, you can check out other calculators here.[/stextbox]
Updated:  I am going to take this offline for awhile.  I really need to sit back down and go over what I had intended this to be used for since I'm starting to mix all Continue reading →