Hello,
To add a new disk-group follow the instructions in the SMU Guide: https://support.hpe.com/hpesc/public/docDisplay?docId=a00017707en_us
You can begin at page 80 for Virtual Disk Groups. During the creation of the disk-group you will be allowed the option to select Pool A or Pool B - this will depend on which volume you want to increase in size or which Pool you wish to add a volume too.
Once the disk-group is added you can either create a new volume or expand an existing volume. Depending on the host OS there are steps you may need to take if you increase the storage. Please follow those steps to correctly see the storage from the hosts.
Cheers,
Shawn
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