Developers Guide

25 Understanding RAID with Dell SC Series Storage | 3104-CD-DS
Some occasions require the tier redundancy to be changed from dual redundancy to single redundancy. This
may only be achieved for SSDs smaller than 4 TB or HDDs smaller than 2 TB. Factors such as free space,
system activity, time of rebalance, and impact on availability should be considered before making this change.
Figure 14 shows redundancy options available for each tier, and the change from a dual redundant to a single
redundant storage type.
Changing from dual to single redundancy for all tiers within this storage type
Note: The RAID rebalance will be started automatically.