sharad_rai
asked on
SAN Disk I/O metrics
Hi,
I'm currently building a new Windows 2008 R2/SQL 2K8 Failover Cluster and waiting for SAN disks provisioning from the storage team. I am also planning to run a disk I/O measurement tool and save the result as a baseline metrics for future references.
One tool comes in mind is SolarWind SAN Monitor for EMC Clariion.
Are there any other good free tools that I can use? And also, what are the key elements that are essential to disk performance and I should incorporate into my test? Almost new to this area.
Thanks, Sharad
I'm currently building a new Windows 2008 R2/SQL 2K8 Failover Cluster and waiting for SAN disks provisioning from the storage team. I am also planning to run a disk I/O measurement tool and save the result as a baseline metrics for future references.
One tool comes in mind is SolarWind SAN Monitor for EMC Clariion.
Are there any other good free tools that I can use? And also, what are the key elements that are essential to disk performance and I should incorporate into my test? Almost new to this area.
Thanks, Sharad
Racim BOUDJAKDJI
I recommend the following tool for measuring both IOPS (in KIops) and throughput (in MB/sec). In itself performance monitor will give you a good indication whether the system presents IO contention by looking at LogicalDisk/PhysicalDisk:A
ASKER
Hi Racino,
Is this part of the Windows Performance monitoring tool?
Is this part of the Windows Performance monitoring tool?
ASKER
Please ignore my last comment.
I just need help deciphering the graph. The metrics uses the default scale of 1,000, what is this scale and how to interpret and relate it to my reading?
And what are those units on Y axis, it starts at 0 and goes up to 100. X is time and moves every second... that I figured
thanks a million,
Sharad
I just need help deciphering the graph. The metrics uses the default scale of 1,000, what is this scale and how to interpret and relate it to my reading?
And what are those units on Y axis, it starts at 0 and goes up to 100. X is time and moves every second... that I figured
thanks a million,
Sharad
By default the Avg Sec per Write is expressed in ms. For example, under a scale of 1000,, a contention of 10 on the graph means each Write takes in average 10 ms to run.
You can also use another tool called IOMeter.
ASKER
Hi Racimo,
I installed IOMeter on a test server and it looked pretty good to me. It does however prepare the disks before running the monitoring on them, hope it is safe to do on production disks right?
I found it better than SolarWinds SAN Monitoring as SW works only with specific EMC storage models.
thanks,
I installed IOMeter on a test server and it looked pretty good to me. It does however prepare the disks before running the monitoring on them, hope it is safe to do on production disks right?
I found it better than SolarWinds SAN Monitoring as SW works only with specific EMC storage models.
thanks,
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ASKER
Excellent, thanks!
I do like this product though...
I do like this product though...
ASKER
Exactly what I was looking for...
Glad it helped. :)