I have a RAID5 array that consists of 3, 2TB drives. I want to add 2 more drives. The tutorials involve adding a single drive to an array, such as this:
Can I add both drives at the same time? Can I do something like (going by the example in the wiki):
mdadm --add /dev/md1 /dev/sdb3 /dev/sdb4 mdadm --grow --raid-devices=5 /dev/md1
Or is it better to just add a single drive at a time?