@oli_4 I have looked at the data that you shared but they are just single output from which we can't conclude anything. However Controller A CPU usage looks high but rest all data looks fine.
1st of all we shouldn't compare MSA2040 with P2000..........one is Linear array and another one is Virtual Array.
In order to troubleshoot Performance issue, there are many factors involved and it's not straight forward task. Some of the best practice to follow can be no hardware issue should exist, firmware need to be up to date, Connected system like Servers, SAN Switch all need to be up to date with driver/firmware as well.
Need to check what is the block size set at the Host and depends on that we should check if you want high IOPs or high throughput. Specifically, the smaller the I/O size, the more I/Os per second (IOPS) the SAN can process. However, the corollary to this is a decrease in throughput (as measured in MB/s). Conversely, as I/O size increases, IOPS decreases but throughput increases. When an I/O gets above a certain size, latency also increases as the time required to transport each I/O increases such that the disk itself is no longer the major influence on latency.
Typically, workloads can be defined by four categories—I/O size, reads vs. writes, sequential vs. random, and queue depth.
A typical application usually consists of a mix of reads and writes, and sequential and random.
For example, a Microsoft® SQL Server instance running an OLTP type workload might see disk IO that is 8k size, 80 percent read, and 100 percent random.
A disk backup target on the other hand might see disk IO that is 64k or 256K in size, with 90 percent writes and 100 percent sequential.
The type of workload will affect the results of the performance measurement.
Check this below Customer Advisory and disable "In-band SES" ,
https://support.hpe.com/hpsc/doc/public/display?docId=emr_na-c05306564
You can check the below Customer Advisory as well.........in many situations this helped to improve performance,
https://support.hpe.com/hpsc/doc/public/display?docId=emr_na-c03473698
If you have specific requirement and you want only SSD pages to deal with your IO then use 'Tier Affinity' on the particular volume.
Check for ODX settings in Windows system. As per SPOCK it clearly says that Microsoft Offline Data Transfers (ODX) is not supported with MSA2040. You check another Forum -> https://community.hpe.com/t5/MSA-Storage/Is-MSA-2040-Certified-for-Windows-ODX/td-p/6967522
https://h20272.www2.hpe.com/SPOCK/Content/ExportPDFView.aspx?Id=91936&typeId=2
Tried to give you step by step SPOCK links along with applied filter.
Download the PDF and in page 4 you will get it's clearly mentioned that Microsoft Offline Data Transfers (ODX) is not supported
If you still face performance issue then at the time of performance issue happening capture the below outputs atleast 10 to 15 times along with MSA log and log a HPE support case. They will help you.
# show controller-statistics
# show disk-statistics
# show host-port-statistics
# show vdisk-statistics
# show volume-statistics
@IT_Prof Not much data available to check from MSA perspective. So difficult to tell what is wrong in your situation.
I work for HPE
Difficult to provide any recommendation without verifying entire setup.
As per the screenshot I see both Controller CPU usage very low so this looks fine. However I see all drive IOPs more than 200 but I don't know the drive model number so difficult for me to check if this is crossing threshold limit or not.
Another thing noticed all IOs seems to be happening through Host port A1 so you need to verify multi-path policy at the Host system. It seems you have fixed path policy set which need to modify as round-robin
You can always log a HPE Support case as well to get basic performance analysis.
Hope this helps!
Regards
Subhajit
I am an HPE employee
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Thank you for sharing the model number of the drive and according to that this is Midline SAS drive which means Safe IOPs value approx 75 only but all of the drives shows more than 200 IOPs
It means high load on the array causing Performance issue. You need to control the load may be reduce backup jobs from VEEAM to fix this.
Hope this helps!
Regards
Subhajit
I am an HPE employee
If you feel this was helpful please click the KUDOS! thumb below!
*********************************************************************
I work for HPE