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12.
Access Control
Access Control sets an accessible logical disk for each host (HBA) or each port. The use
of the access control feature enables the division of logical disks into logical disk groups.
The division extends the flexibility of the system configuration. The feature also ensures
data protection and security protection by limiting access to each host (HBA) or each port.
As a rule, do not use the two modes below in the same disk array unit. In consideration of
the system configuration/design and the complexity of operation, the use of only Port
Mode or WWN Mode in each disk array unit is strongly recommended.
Dedicated software (NEC Storage AccessControl), which is to be purchased separately, is
necessary for using the access control feature. For details on the usage, refer to the
instruction manual provided with the software.
Before the access control feature can be used on this disk array unit, the license key
provided with the software must be entered from "NEC Storage Manager" in order to
release the license lock.
You can release the license lock and make settings by yourself.
NEC maintenance service representative provides the installation service (additionally
charged) for releasing the license lock and making settings. Contact your maintenance
service representative if necessary.
Note: Set the CROSS CALL feature to ON when you use the access control feature.
12.1 Port Mode
Accessible logical disks are set in ports in the port mode.
The access control in the port mode has the following features.
• Conversion between logical disk number for management in unit and that on host
interface
• Masking by setting logical disks accessible from port
• Addition/deletion of logical disks accessible from port
• Registration of host permitting accesses
12.2 WWn Mode
Accessible logical disks in the system are set for each host (HBA) in the WWn mode.
The access control in the WWn mode has the following features.
• Conversion between logical disk number for management in unit and that on host
interface
• Masking by setting logical disks accessible from host (HBA)
• Addition/deletion of logical disks accessible from host (HBA)
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