Am 27.11.22 um 12:52 schrieb Wols Lists:
On 27/11/2022 11:46, Reindl Harald wrote:
Am 26.11.22 um 21:02 schrieb John Stoffel:
I call it a failure of the layering model. If you want RAID, use MD.
If you want logical volumes, then put LVM on top. Then put
filesystems into logical volumes.
So much simpler...
have you ever replaced a 6 TB drive and waited for the resync of mdadm
in the hope in all that hours no other drive goes down?
when your array is 10% used it's braindead
when your array is new and empty it's braindead
ZFS/BTRFS don't neeed to mirror/restore 90% nulls
This is why you have trim.
besides that such large disks are typically HDD trim has nothing to do
with the fact that after a drive replacement linux raid knows *nothing*
about trim and does a full resync
you are long enough on this list that you should know that
Although I don't know if raid supports that
surely - but you miss the topic
