Changing the RAID Level of a Logical Drive

If your storage needs or application requirements change, you can change, or migrate, the RAID level of your logical drives to another, more suitable, RAID level. You may want to change the RAID level to add redundancy, further protect your data, or to improve data availability for speedier access. See Selecting the Best RAID Level for more information.

Changing the RAID level normally requires one or more disk drives to be added to or removed from the logical drive. maxView Storage Manager will not let you change the RAID level unless the right number of drives are available.

The following RAID level migrations are supported:

  • RAID 0 to RAID 5
  • RAID 0 to RAID 10
  • RAID 5 to RAID 6
  • RAID 6 to RAID 5
  • RAID 10 to RAID 5
  • RAID 5 to RAID 10
  • RAID 1 to RAID 5

To change the RAID level of a logical drive:

  1. In the Enterprise View, select a controller, then select the logical drive that you want to migrate.
  2. On the ribbon, in the Logical Device group, click Expand/Migrate.

    A wizard opens to help you modify the logical drive.

  3. Select a new RAID level, then click Next. Only valid RAID level options are offered.
  4. In the RAID Members panel, select the disk drive(s), drive segments, or SSDs that you want to add to the logical drive.

    If you want to remove a specific disk drive or segment and replace it with another one (for instance, to replace a smaller disk drive with a larger one), deselect the disk drive you want to remove, then select another disk drive of greater or equal size to replace it.

    Note: We recommend that you do not combine SAS and SATA disk drives within the same logical drive. maxView Storage Manager displays a warning message if you try to create a logical drive using a combination of SAS and SATA disk drives.
  5. Enter the size of the logical drive in the space provided (in gigabytes). It must be greater than or equal to the current size.
    Note: Some operating systems have size limitations for logical drives. Before you save the configuration, verify that the logical drive size is supported by your operating system.
  6. Select a new stripe size from the drop-down list, if required.
    Note: The default stripe size usually provides the best performance.
  7. Click Next.
  8. Review the logical drive settings. To make changes, click Back.
  9. Click Finish. The logical drive is reconfigured with the selected disks and migrates to the new RAID level.

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