Do you have replication configured?
Can you please provide below output,
show volumes
MSA 2050 max no of volumes supported 512 and max no of snapshot supported 512 so you need to check how many total volumes + snapshot present in your system
I see in Pool A around 124.1TB shows as Available so you shouldn't face any problem with volume creation if you haven't reached volume creation threshold limit.
It will be good if you can share the SMU home page where all Pools, Disk Group and other component size shown as the below seems un-natural,
UNALLOCATED : 5259.9TB
A is overcomiitted by 5135.7TB
Hope this helps!
Regards
Subhajit
I am an HPE employee
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