AMCC 720-0138-00 manual Valid Migration Paths

Changing An Existing Configuration

Figure 22. RAID Level Migration Example

Typically, a unit is reconfigured with the same or more storage capacity. Sometimes additional drives are added. The following table shows valid reconfigurations, some of which will require the addition of more drives.

Table 7: Valid Migration Paths

			Destination
Source	R0	R1	R5	R10	Single	Spare
R0	Yes	No	Yes	Yes	No	No
R1	Yes	No	Yes	Yes	Yes	No
R5	Yes	No	Yes	Yes	No	No
R10	Yes	No	Yes	Yesa	No	No
Single	Yes	Yes	Yes	Yes	No	No
Spare	No	No	No	No	No	No

a.When migrating a RAID 10 to a RAID 10, the only change you can make is the stripe size.

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