Figure 3.5.5.1
Figure 3.5.5.2
(Figure 3.5.4.2: LUN status for AR108X has one SAS channel.)
• LUN operations description:
Attach
Attach a logical unit number to a user data volume.
Delete
Detach a logical unit number from a user data volume.
The matching rules of access control are inspected from top to bottom in sequence. For example: there
are 2 rules for the same UDV, one is “*”, LUN 0; the other is “SAS address1”, LUN 1. The other host
“SAS address2” can login successfully because it matches the rule 1.
The access will be denied when there is no matching rule.
3.5.6 Examples
The followings are examples for creating volumes. Example 1 is to create two UDVs sharing the same
CV (global cache volume) and set a global spare disk. Example 2 is to create two UDVs. One shares
the global cache volume, and the other uses dedicated cache volume. Set a dedicated spare disk.
• Example 1
Example 1 is to create two UDVs in one VG, each UDV uses global cache volume. Global cache
volume is created after system boots up automatically. So, no action is needed to set CV. Then set a
global spare disk. Eventually, delete all of them.
Step 1:
Create VG (Volume Group).
To create the volume group, please follow the procedures:
Advanced operation
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