Regarding ASM disks of dissimilar sizes
We have an ASM disk group where we have just added 10 TB in 5 2TB disks. The previous disks in this diskgroup are only 512 GB.
We are not worried about the performance aspect but rather are we going to be able to utilize the full amount of data. Data is only needed temporarily during some data movement.
select name, usable_file_mb from v$asm_diskgroup
Shows the expected size. So do we have anything to worry about ?.
ps.
System is oracle enterprise edition version 19.21