We have Dell FS8600 v.6 appliance includes SC4020 & SCv3020 iSCSI back-end, it is using NAS Pool across 2 Storage Center. Now we need take out SCv3020 from FS

My question : How do delete NAS Pool in DSM before remove any SC in back-end? (NAS Pool is empty without any FS Volume was create before!,), I could not find any guide in FS8600 Administration & Dell Storage Management, includes CLI command

If can not delete NAS Pool, we must reset all to "Factory Default" & initialize all? It is inconvenience