[PLUG] Setting up RAID1 on two 1G disks

[Rich Shepard]

On Tue, 4 Jan 2022, Rich Shepard wrote:

> I want to setup sde and sdf using raid1 for backups. I assume that since
> each is partitioned (sde1 and adf1) I can run mdadm and set up the raid1.

mdadm set up /dev/sde and /dev/sdf as RAID1 disks. I set the array as
/dev/md0 and installed ext4 on it. Everything went fine, but now md0 is
continuously running md0_resync and I cannot find how to stop it in the
adman docs I have.

The man page tells me that the initial md0_resync runs after the RAID is
created, and md0 can be used right away. Since there are no data yet on
either disk (both 1TiB) how long will it resync two disks with no data on
either?

Rich