That's a SYMACL (access controls) error.  Make sure your host has permissions to the devices you're working on.  Some commands that may help:  symacl -sid 37 list -acl  (lists the ACLs with their pools and types) symacl -sid 37 list symacl -sid 37 list -v symacl -sid 37 list -accpool symacl -sid 37 list -accgroup  If you have a specific group or pool you want to see, run these commands: symacl -sid 37 show accgroup symacl -sid 37 show accpool  The EMC Solutions Enabler Symmetrix Array Management CLI Product Guide has a chapter on SYMACL, called "Host-Based Access Control" if you need it.  You should be able to search for it on the support site and download the document for your SE version.  Hope this helps.
 Hi,  in the process of removing a device from storage group, I have applied the command as follow below:    symaccess -sid 37 -type storage -name FRDGRHD38_PRA_A01_A02_shared_SG remove devs 0114 -unmap  I then had an output screen with this message: "Symmetrix access control denied request"    Can you please assist or let me know if I did wrong somewhere?   === relative infos - No ACLs applied against SG "FRDGRHD38_PRA_A01_A02_shared"  - SE 7.4 - Running Symcli as administrator - screenshot attached                        
Removing a device from storage group