# Feature request, resumable raid check action

- From: Patrick Dung \<hidden\>
- Date: 2016-11-30 12:21:55 
- List: linux-raid
- Page: https://ratatoskr.run/linux-raid/2016/11/6633773
- Thread: https://ratatoskr.run/linux-raid/2016/11/6633773/t.md

```text
Hello,

As I know if MD raid is using the newer metadata version, it support
resumable raid rebuild/sync. (that is, if a server is rebooted during
rebuild, it would resume from last position after reboot, instead of
starting from beginning).

In my recently testing (a few months ago):
I sometimes use the mdadm 'check' action for doing the disk scrubbing
of a MD raid.
After I rebooted the server, the 'check' operation is forgotten and is
not resumable.

I think resumable 'check' operation is useful as the array size would
become bigger in the future.

Thanks and regards,
Patrick
```