Supported RAID

The ETERNUS DX supports the following RAID levels.

  • RAID0 (striping)

  • RAID1 (mirroring)

  • RAID1+0 (striping of pairs of mirrored drives)

  • RAID5 (striping with distributed parity)

  • RAID5+0 (double striping with distributed parity)

  • RAID6 (striping with double distributed parity)

  • RAID6-FR (striping with double distributed parity which provides high-speed rebuild capabilities)

Important

Remember that a RAID0 configuration is not redundant. This means that if a RAID0 drive fails, the data will not be recoverable.

This section explains the concepts and purposes (RAID level selection criteria) of the supported RAID levels.

Caution

When Nearline SAS disks that have 8TB or more are used, the available RAID levels are RAID0, RAID1, RAID6, and RAID6-FR.