The automatic configuration function can be used to automatically configure LogicalVolumes. This function automatically allocates a RAIDGroup and LogicalVolumes in an optimum configuration for the device unit. Automatic configuration is enabled for both a device unit created from the unit stencil and a device unit loaded from the real device with the device load function. For either type of device unit, automatic configuration can be performed even after the device configuration is changed by disk operation or RAIDGroup operation. The device configuration created by automatic configuration can also be reconfigured manually.
The following explains how to operate the automatic configuration function.
While selecting a device unit, select [Design] - [Auto Configuration] from the menu bar or select [Auto Configuration] from the pop-up menu to open the disk operation window. The figure below shows how the disk operation window is opened.
Enter the necessary information on the auto configuration window. The auto configuration window is shown below.
The following explains the meanings of individual parameters and how to use the window.
Enter information on the LogicalVolumes to be created. Specify the capacity of a LogicalVolume for [Capacity(MB)]. Specify the number of LogicalVolumes to be created for [Number of create]. For [RAID Level], select the RAID level of the RAIDGroup to which the LogicalVolumes are to be assigned. After specifying the above parameters, click the <>>> button to move the specified LogicalVolume parameters to [LogicalVolumes to be created]. To delete a LogicalVolume parameter from [LogicalVolumes to be created], select the corresponding field and click the <<<> button.
Specify how the RAIDGroup and LogicalVolumes are to be configured.
Select a volume assignment method in [Please specify the usage of a RAIDGroup]. In other words, specify the RAIDGroup to which the LogicalVolumes specified in [Define LogicalVolumes] are to be assigned. Select one of the following two methods:
[Create a new RAIDGroup]
No existing RAIDGroups are used but free disks are used to create a RAIDGroup, after which the LogicalVolumes are assigned to the created RAIDGroup.
[Use an existing RAIDGroup]
LogicalVolumes are assigned by searching the existing RAIDGroups for free space. Clicking the <Select> button lists existing RAIDGroups. The user can uncheck a certain RAIDGroup to prevent it from being allocated to LogicalVolumes. (*1) If the option "If there is not enough free space create a new RAIDGroup" is selected, a new RAIDGroup is created for allocating LogicalVolumes only when the existing RAIDGroups run short of free space.
*1: RAID groups that cannot be edited with Storage Volume Configuration Navigator are not displayed (for more information, see "11.1.5 Operation procedure").
Select one of the options under [Distribution]
When [Distribute volumes evenly across RAIDGroups] is selected, LogicalVolumes are assigned to target RAIDGroups as evenly as possible.
When [Assign volumes to the lowest available RAIDGroup number] is selected, LogicalVolumes are assigned in order of RAIDGroup numbers.
After entering all necessary parameters, click the <Execute> button.
This completes the procedure for automatically allocating LogicalVolumes.
