Solved

How to calculate iops?

Posted on 2016-11-15
12
96 Views
Last Modified: 2016-11-18
Hi

Can you tell me what am I missing to calculate  iops?

I have read  and write trans per second. What else do I need to calculate iops?


Can provide clear example?

Thx, m
0
Comment
Question by:michalek19
  • 6
  • 5
12 Comments
 
LVL 7

Expert Comment

by:No More
ID: 41888931
0
 

Author Comment

by:michalek19
ID: 41889828
Based on what I have , what would be IOPs number?

DB      # of Read      # of Write
Axcx      16671511      898145
Axcxsdsd      6575984      913552
qer      8334046      763289
Axcxsdsdqeqwe      47583994      18902153
Axcxwerwerw      1422121      1636107
Axcx      3230227      265539
Axcx      393454      0
Erewrasdf      2555081      2935
Metereasdf      123513      229699
SFrweraSDf      322377      0
Sradsfasfas      1200      12
Srewawfe      1798607      24899186
0
 
LVL 28

Expert Comment

by:Pawan Kumar
ID: 41890748
Are you checking Disk IO performance for the entire DB? What Output you want from the above data ?
0
Optimizing Cloud Backup for Low Bandwidth

With cloud storage prices going down a growing number of SMBs start to use it for backup storage. Unfortunately, business data volume rarely fits the average Internet speed. This article provides an overview of main Internet speed challenges and reveals backup best practices.

 

Author Comment

by:michalek19
ID: 41890757
Correct disk up performance but I am looking for total IOPS
0
 
LVL 28

Expert Comment

by:Pawan Kumar
ID: 41890764
Can you give me the query you are using for above numbers >
0
 

Author Comment

by:michalek19
ID: 41890773
SELECT name AS 'Database Name'      
,SUM(num_of_reads) AS 'Number of Read'      
,SUM(num_of_writes) AS 'Number of Writes'
FROM sys.dm_io_virtual_file_stats(NULL, NULL) I  
INNER JOIN sys.databases D        
ON I.database_id = d.database_id
GROUP BY name ORDER BY 'Number of Read' DESC;
0
 
LVL 28

Expert Comment

by:Pawan Kumar
ID: 41890776
try this


SELECT SUM([Number of Read]) [Number of Read] , SUM([Number of Writes])[Number of Writes]
FROM 
(
	SELECT name AS 'Database Name'      
	,SUM(num_of_reads) AS 'Number of Read'      
	,SUM(num_of_writes) AS 'Number of Writes' 
	FROM sys.dm_io_virtual_file_stats(NULL, NULL) I  
	INNER JOIN sys.databases D        
	ON I.database_id = d.database_id
	GROUP BY name
)k
ORDER BY SUM([Number of Read]) DESC

Open in new window

0
 

Author Comment

by:michalek19
ID: 41890781
I got out put.  But what is the IOPS

Read                  Write
260407117        311814718
0
 

Author Comment

by:michalek19
ID: 41891565
I got this result

What these numbers represents?
What would be IOPS

 Read                  Write
 260407117        311814718
0
 
LVL 28

Expert Comment

by:Pawan Kumar
ID: 41891573
Wait I shall reply in some time.
0
 
LVL 28

Accepted Solution

by:
Pawan Kumar earned 500 total points
ID: 41892423
These numbers represent Number of Read and Writes happened in all the databases present on the server.

IOPS
-Basically here we need Disc Read IO /Sec and Disc Write IO /Sec. Many people consider IOPS as SUM of  Disk Reads per sec and Disk Writes per sec but many consider other performance counters also. <<read more at - https://social.technet.microsoft.com/Forums/systemcenter/en-US/92ad3a22-49fb-4e60-9573-8b6f629cbbe9/monitoring-sql-iops?forum=operationsmanagergeneral>>

For IOPS please read article from Denny Cherry AC.
https://www.dcac.co/syndication/how-do-i-measure-iops-from-sql-server

Below url will also provide you another query which will provide some IOPS stats-
https://ask.sqlservercentral.com/questions/41131/obtaining-sql-server-specific-iops.html

Hope it helps !
0
 

Author Closing Comment

by:michalek19
ID: 41892766
Thx
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
SQL Insert parts by customer 12 42
Downgrading MS SQL 2008 R2 Enterprise to MS SQL 2005 Standard? 12 65
While in ##Table - Help 4 19
Parse this column 6 27
Long way back, we had to take help from third party tools in order to encrypt and decrypt data.  Gradually Microsoft understood the need for this feature and started to implement it by building functionality into SQL Server. Finally, with SQL 2008, …
This is basically a blog post I wrote recently. I've found that SARGability is poorly understood, and since many people don't read blogs, I figured I'd post it here as an article. SARGable is an adjective in SQL that means that an item can be fou…
This video shows how to use Hyena, from SystemTools Software, to bulk import 100 user accounts from an external text file. View in 1080p for best video quality.

860 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question