Free space is used automatically by hot-relocation in case spare space is not sufficient to relocate failed subdisks. You can limit this free space usage by hot-relocation by specifying which free disks should not be touched by hot-relocation. If a disk was previously excluded from hot-relocation use, you can undo the exclusion and add the disk back to the hot-relocation pool.
To make a disk available for hot-relocation use, use the following command:
# vxedit [-g diskgroup] set nohotuse=off diskname
To use vxdiskadm to make a disk available for hot-relocation use
Select Make a disk available for hot-relocation use from the vxdiskadm main menu.
At the following prompt, enter the disk media name (such as mydg01):
Enter disk name [<disk>,list,q,?] mydg01
The following confirmation is displayed:
V-5-2-932 Making mydg01 in mydg available for hot-relocation use is complete.
At the following prompt, indicate whether you want to add more disks to be excluded from hot-relocation (y) or return to the vxdiskadm main menu (n):
Make another disk available for hot-relocation use? [y,n,q,?] (default: n)