• LUN control explained:
ATTACH
Attach a logical unit number to a user data volume
DETACH
Detach a logical unit number from a user data volume
The rule for permission control starts from above and proceeds downwards and there are two
requirements for UDV. Requirement number one: “*”, LUN 0. Requirement number two: “iqn.host1”,
LUN 1. So when the other host, “iqn.host2” wants to perform access, it can login because it meets the
first requirement.
If it does not meet the requirement, access will be denied.
4.6.6 Example
Below is an example for establishing a volume. In Example 1, 2 UDVs with shared global CV (global
cache volume) will be established in addition to another shared disk. In Example 2, 2 UDVs will be
established and 1 shared Cache Volume. For the other, a dedicated Cache Volume is used to configure
a dedicated hard disk.
• Example 1
In Example 1, 2 UDVs will be established in 1 VG and each UDV uses shared Cache Volume. The
shared Cache Volume will be automatically established after the system completes the booting process
and thus there is not need to configure CV. Next, configure a shared hard disk. Finally, clear all
configurations.
1) To establish VG (Volume Group)
To establish VG, refer to steps below:
a. Select “/ Volume config / Volume group”
b. Click and select “
“
c. First, enter a name for VG, and then select a RAID level in the menu and click and select
“
” to choose RAID Physical hard disk location and finally click and select
“
”.
d. Confirm the result. If the settings are correct click and select “
”
e. The process is completed and a VG has been established.
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Introduction to User Interface
