HP Storage Essentials NAS Manager Software - Manual (Page 397)

Storage Essentials 5.1 User Guide 365
created. This occurs because until a volume is assigned a host security group with an initiator, it
is visible to all initiators and is assigned to the Default Group. To assign a volume to a specific
host security group, you must add an initiator to that host security group.
EMC Symmetrix Storage Systems
If no LUN security is turned on for an FA port, all volumes assigned to the FC port are visible by
hosts that are on the SAN and have been zoned by the SAN. All volumes assigned to the FC port
appear in the mapped category.
When you create the HSG on a Symmetrix storage system, you are creating LUN mapping and
masking in one step. In the native tools for Symmetrix storage systems, you will not see the HSG
you created by using the management server. Instead you will see a volume binded to a port and a
masked LUN to a host in the native tools.
• HSG is associated with individual ports
• HSGs only allow one initiator for host security masking.
• To create a host security group, you must specify a port, initiator and a volume.
• Every port has a LUN HSG, even if no LUNs are defined for that port. To bind a LUN to a port,
edit the host security group and add the desired LUN to a port.
• You can also add LUNs to a Mask HSG. To add initiators, you need to create the HSG.
HDS Storage Systems
• FC port contains only volumes but no initiators (HBA WWN) assignment, the management
server displays these volumes as unmapped since no external host can see these volumes yet.
• You can have 0 to multiple initiators in a host security group
• You can have 0 to multiple volumes in a host security group.
• Every HSG is only on one port on the array. You can have host security groups with the same
name, as long as they are on different ports.
• Host security groups appear in the native tool for HDS storage systems in the logical view, listed
by LDEV and in the physical view, listed by port.
• In the native tool for HDS storage systems, host security groups are referred to as a host security
domain.
• See ” Host Security Group Names on HDS Storage Systems ” on page 377 for more information
about HSG names.
HP MSA and EVA Storage Systems
• You can have one initiator per host security group
• You can have 0 to multiple volumes in a host security group.
• A host security group spans all ports on the array.
IBM Storage Systems
• To assign a host mode to a host security group, you must modify a property, as described in
” Setting the Host Mode for IBM Storage Systems ” on page 373.