AMD-RAIDXpert2 User Guide
53987 Rev. 3.10 June 2019
124
rcadm Command Line Interface Tool
Chapter 10
10.6
Transform Arrays: rcadm --transform
The rcadm --transform or rcadm -T command allows the user to transform (migrate) an
array from one RAID level to almost any other RAID level, and to expand the array dynamically,
even under I/O load.
10.6.1
Before You Begin...
• An array cannot be transformed to a smaller-sized array. New arrays must be either
the same capacity or larger.
• When
using the task control option, a Transform can only be paused or resumed but
not removed.
• If a spare has been assigned to the destination array, a fail-over
task starts as soon as
the Transform completes, provided the spare is available after the Transform.
• If there are multiple
arrays on a single controller, it might not be possible to
transform some of the arrays to a larger size. If the size of an array might be
expanded
in the future, it is best to configure the available space as a single array.
• The array size of the transformed array is limited to 2.199 TB on some operating
systems.
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