1st of all I want to correct few terminology otherwise it will create confusion for others who all are following your forum.
You have mentioned
"There are 4x disk pools:
- Controller A: 4xSSD RAID10 en 8xSAS 15k RAID10
- Controller B: 4xSSD RAID10 en 8xSAS 15k RAID10"
Here these are called Virtual Disk group (VDG) and not Pools
MSA2052 bydefault will have two Pools. One is for Controller A which is Pool A and another for Controller B which is Pool B
Above 4 VDG will be part of these two Pools. 1 SSD and 1 SAS VDG will be part of Pool A and another SSD and SAS VDG will be part of Pool B
You have mentioned
"- There are 10 CSV's configured:
2x SSD and 3x SAS per Storage pool"
How do you know that volume space you have got from SSD VDG or SAS VDG because at the time of any volume creation you can see only space in the Pool. You just have to mention size of the volume but you will never know from which VDG space will be allocated. This is Virtualization. Moreover at the time of creation of Volume space will not get allocated as these are Thin provision volume. Space gets allocated as per demand created by hosts and write request.
MSA2052 having Automated Tier License already included so as per the usage of the volumes data will be moving from SAS to SSD and SSD to SAS tier automatically.
If you still want to define some preference or want to set Quality of Service (QOS) then you can define "Volume Tier Affinity" feature on each volume.
You can distribute 5 volume per Pool which means 5 volumes will be taken care by Controller A and another 5 volume will be taken care by Controller B. This is how load balancing will happen.
You configuration is perfect and you just need little modification to get good performance.
You can also refer the best practices whitepaper to get more information on this,
https://h20195.www2.hpe.com/v2/getdocument.aspx?docname=a00015961enw
Hope this helps!
Regards
Subhajit
I am an HPE employee
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