How to Calculate IOPS

[ShankY.Rudeshwar]

hello everyone, anyone have any idea about IOPS Calculator? what is IOPS Calculator? here i am searching for the calculator which calculate my IOPS. anyone have any idea about this? and i just want to know that how does these different from Raid 1+0 and Raid 5? if anyone has any answer from above than please provide me. any help will greatly appreciated.

[Gania]

IOPS means Input Output Operations per Seconds. IOPS Calculator Allows you to calculate not only the IOPS, and other parameters for individual drives, as well as for RAID-arrays. to calculate IOPS just visit the wmarow and calculate the iops by giving different parameters.

[Abhiroopa]

we assume that this is an integer. Then the performance of a volume is running RAID-0 will be equal IOPS = (Nhdd * StrpUsz) / (BLK sz * Nhdd) write operations per second. It is not hard to guess that the performance of a volume is running RAID-0 is higher, the greater the number of data blocks can fit in one row stripe. But it is often necessary to solve the inverse problem: what is the minimum number of hard drives, you must have to provide for the required performance in IOPS? The above equation is quite capable to answer this question.

[Erakna]

When designing disk arrays often arises the problem of calculating the IOPS. Use calculator to calculate the required performance parameters of disk arrays: the number of input-output bandwidth, the required number of spindles.

[Bontu]

Hard drive (storage system) is characterized, in general, two parameters: the capacity (measured in megabytes / gigabytes), and the speed (measured in IOPS - Input-Output Operations per Second) And if the drive capacity constantly increasing for several years, the figures for IOPS froze for quite some time. It is considered that a SATA drive provides 80-100 IOPS, Drives SAS / FC - 140-160 for 10KRPM, 180-200 - 15KRPM.

[Essien]

A different picture will be, if we calculate the value of IOPS-s. SATA drive at the same time will cost $ 2.1 per IOPS, and 15K SAS - 1.38 $ / IOPS. Suppose our goal is to create storage 3 TB, with the speed it should not be worse than 3000 IOPS.

[GaganjyotTechie]

Individuals interested in hard drive actually only the price per gigabyte and the total capacity. Come and ask again, why are not 1 TB 1000 gigabytes, and therefore a 1 TB disk or even less, only 953 megabytes in size. Data should not be lost and therefore belongs to the RAID duty, there are also subtle differences in performance and also the rebuild rate, when a disk needs to be replaced. Larger storage systems can even copy data to other systems or replicate, and thus allow for a hedge against failure of an entire chassis.

[DanielaA]

The needs of assessment for their server, of course also depends on several factors. Of course, the software in a topic, and I confine myself here now but to Exchange. For SQL, file servers, etc. are different values. And there is also a difference, what additional services on the server are still running. The Microsoft-supplied Mailbox Storage Calculator which is a good starting point to determine the IOPS for an Exchange system, where it refers only to the mailbox role.

[GALIENA]

The IOPS on a single disc are the same for reading and writing. The sharp jump in the discs of memory modules is of course an effective way, eg transaction logs to speed up significantly.