On 24/08/2020 20:33, grumpy@xxxxxxxxxxxxx wrote:
i have 2 6tb drives
i use a 3tb partition on each drive for raid 1
i want to increase the size of the partitions
what are the steps for this that will result in the least likelihood of
me screw'n up my system
thanks
Seeing as no-one else has commented - you don't happen to have a spare
disk by any chance? In that case you simply create a new 6TB partition
on your new disk, and do a replace. You can then rinse and repeat with
the disk you've just freed.
Otherwise, what I think you do is ... SHUT DOWN THE ARRAY. I *think* you
can increase the partition size by deleting the old 3TB partition then
just creating a new one starting in exactly the same place. Do it on one
disk, test it by restarting the array. If it works, rinse and repeat on
the second disk.
You now have a 3TB array on 2 6TB partitions. You should be able to do
an "mdadm --grow" on the array - no need to specify the size as it
should default to 6TB - to make a 6TB array. There are reports that
might fail - a reboot should fix that - and you can now grow your
filesystem to use the whole array.
Cheers,
Wol
