User manual

3.5.6 Logical Unit Number (LUN)
Enter “Logical unit” function to view the status of attached logical unit number of each UDV
• LUN operations description:
ATTACH Attach a logical unit number to a user data volume
DETACH Detach a logical unit number from a user data volume
Notice : Pay attention to which SCSI bus is connected. The bus ID and the SCSI ID must be identical.
3.5.7 Example
The following are examples for creating volumes. Example 1 is to create two UDVs sharing the same CV
(global cache volume) and confi gure a global spare disk. Example 2 is to create two UDVs. One shares global
cache volume while the other uses dedicated cache volume. Then a dedicated spare disk will be confi gured.
• Example 1
Example 1 is to create two UDVs in one VG, each UDV shares global cache volume. Global cache
volume is automatically created after system boots up. So, no action is needed to confi gure CV. Then set
a global spare disk. The last step is to delete all confi gures.
Step 1 Create VG (Volume Group).
To create the VG, please follow the steps below:
1. Select “/ Volume confi g / Volume group”.
2. Click “ ”.
3. Input a VG Name, then choose a RAID level from the list, click “ ” to choose the
RAID PD slot(s), then click “ “
4. Confi rm the results. Click “ ” if all the settings are correct.
5. OK. A VG has been created.
Figure 3.5.7.2
(Figure 3.5.7.2: Creating a RAID 5 with 3 physical disks, named “VG-R5”. The total size is 148GB.)
Step 2 Create UDV (User Data Volume).
To create a UDV, please follow the steps below.
1. Select “/ Volume confi g / User data volume”.
2. Click “ ”.
3. Input a UDV name, then choose a VG name and input a size for the UDV; decide the stripe height,
block size, read/write mode and confi gure the priority, and click “ ” in the end.
4. OK. A UDV has been created.
5. Repeat the steps above to create another UDV.
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