Technical data

Acer | HDS AMS200 User and Reference Guide 143
7.4.5 Setting a Logical Unit
Note: You can create settings for the only system LU when the AMS200 is connected to the
NAS in accordance with the following restrictions:
Capacity Restriction No.
Internal
LU
Number
(Note1)
System LU
Bytes Designation Block Designation
Control
unit in
charge
(Note2)
1 0 For system disk (CTL 0) 14,013 M bytes (or more) 27,369,141 blocks (or more) 0
2 1 For system disk (CTL 1) 14,013 M bytes (or more) 27,369,141 blocks (or more) 1
3 2 For volume for storing dump (CTL 0) 4,925 M bytes (or more) 9,619,141 blocks (or more) 0
4 3 For volume for storing dump (CTL 1) 4,925 M bytes (or more) 9,619,141 blocks (or more) 1
5 4 For command device 35 M bytes (or more) 68,360 blocks (or more) 0
6 5 For the work for storing the dump edit
result.
4,195 M bytes (or more) 8,193,360 blocks (or more) 0
7 6 For the system sharing volume 2,537 M bytes (or more) 4,955,079 blocks (or more) 0
8 7 For the volume for back-upping a shared
volume
2,537 M bytes (or more) 4,955,079 blocks (or more) 0
9 8 For the volume 2 for back-upping a shared
volume
2,537 M bytes (or more) 4,955,079 blocks (or more) 0
Note1: Internal LU Number is recommended value. If value other than the values described above is set, there is no problem
in system operation.
Note2: Control unit in charge is recommended value. If value other than the values described above is set, there is no
problem in system operation.
Note: It is recommended that system LU and user LU when the AMS200 is connected to the
NAS are created in different RAID groups respectively.
To set a logical unit, follow these steps:
1. Turn on the power supply.
Note: If the power supply has already been turned on, proceed to the next step.
1. Start the Storage Navigator-Modular program, and set the operation mode to
Management Mode.
2. Click the icon of an array unit on the Main window, select the Settings menu, and then
click Display Details. Alternately, click Display Details on the tool bar.
3. Click the Logical Status tab on the Unit screen.
4. Click the icon of a RAID group from which you would like to create the Logical Unit.
On the Settings menu, select Logical Unit and click Settings. Alternately, click Logical
Unit Settings on the tool bar.
This operation can also be completed from the context menu of the Logical Unit dialog
box. The Logical Unit dialog box displays.
1. On the Logical Unit dialog box, enter or select Logical Unit No., Default Controller, and
Size. Click OK.