Supported RAID Configurations

RAID is short for Redundant Array of Independent (or Inexpensive) Disks, which is a category of storage that employs two or more drives in combination for fault tolerance and performance. There are a number of RAID levels in use today such as 0, 1, 3, 5, 6 and 10. The DXi9200 uses RAID 6.

RAID 6 uses block-level striping with two parity blocks distributed across all member disks. Dual parity provided by a RAID 6 configuration ensures that your data retains full integrity even in the event of two drive failures. Since single-parity RAID levels are vulnerable to data loss until the failed drive is rebuilt: the larger the drive, the longer the rebuild will take and the longer the system is vulnerable to possible data loss.

DXi9200 RAID Sets

DXi9200 Configuration System Capacity

Description
1 Node, 1 RBOD 110 TB - 1100 TB

  • Contains 8 drives (0-7)

  • 1 RAID 6 configuration set (6+2, no hot spare)
1 Node, 2 RBODs 1155 TB - 2200 TB

  • Contains 16 drive (0-15)

  • 2 RAID 6 configuration sets (6+2, 6+2, no hot spares)

Array Module RAID Sets

 

Item

Description
1

  • Each RAID 6 configuration set consists of 14 drives (11+2, 1 global hot spare)

  • Maximum 5 RAID sets per top RBOD drawer (60 total drives)
2

  • Each RAID 6 configuration set consists of 14 drives (11+2, 1 global hot spare)

  • Maximum 5 RAID sets per bottom RBOD drawer (60 total drives)