Migrating the RAID Level of a Virtual Drive
Keywords: MegaRAID SAS SW UG

> Migrating the RAID Level of a Virtual Drive

> As the amount of data and the number of drives in your system increase, you can use RAID-level migration to change a virtual drive from one RAID level to another. You do not have to power down or reboot the system when you make this change.

> When you migrate a virtual drive to another RAID level, you can keep the same number of drives, or you can add drives. In some cases, you have to add a certain number of drives to migrate the virtual drive from one RAID level to another. The window indicates the minimum number of drives you are required to add.

> ATTENTION Be sure to back up the data on the virtual drive before you change the RAID level.

> Follow these steps to change the RAID level of the virtual drive with the Modify Drive Group wizard:

> 1. | Click the Logical tab in the left panel of the MegaRAID Storage Manager window.

> 2. | Select a drive group in the left panel of the window.

> 3. | Either select Go To > Drive Group > Modify Drive Group on the menu bar, or right-click the virtual drive icon to access the Modify Drive Group wizard.

> The Modify Drive Group wizard appears.

> Figure 72. Modify Drive Group Wizard Dialog

> 4. | On the Modify Drive Group Wizard dialog, select the RAID level to which you want to change ("migrate") the drive group to, and click Next.

> The following dialog appears. The dialog states the number of drives that you have to add to change the RAID level from the current level to a new RAID level that requires more drives.

> Figure 73. Modify Drive Group - Add drive to the current configuration Screen

> 5. | Select the unconfigured drive or drives to add, and click Next.

> NOTE The drives you add must have the same capacity as or greater capacity than the drives already in the drive group, or you cannot change the RAID level.

> The Modify Drive Group – Summary window appears. This window shows the current settings and what the settings will be after the drives are added.

> Figure 74. Modify Drive Group - Summary Screen

> 6. | Review the configuration information.

> You can click Back if you need to change any selections.

> 7. | Click Finish to accept the changes.

> A confirmation message appears. The message states that this operation cannot be aborted and asks whether you want to continue.

> 8. | Click Yes to accept and complete the migration to the new RAID level.

> The operation begins on the virtual disk. To monitor the progress of the RAID level change, select Manage > Show Progress in the menu bar.

DB09000202-21, Rev 2.2, July 2015
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