Updating boot support partitions for the volume as
Old disks are removed live, the RAID volume does not need to be unmounted.
For missing devices, old Device must be device's UUID.
From these basic types, "stacked" or "nested" RAID volumes can be created.
This will cause the average unused space per file to be 4,096 (i.e. When determing size: ( 3/18/16 DATA vol has 189,624 files df reports 21,014,072 1k blocks used of 44,384,728 This is a space accounting only.
Command line Utility to manage local disks and volumes.
Options which make changes require ownership or root and most are DESTRUCTIVE!
For concatenated RAID sets with a resizable filesystem, delete will attempt to shrink the filesystem to fit on the first member partition and convert that to a non-RAID volume. New disks are added live, the RAID volume does not need to be unmounted.
Mirrored volumes support adding both members and hot spares, When adding to a mirrored RAID set, the new disk must be the same size or larger than the existing disks in the RAID set.