Changing cache drive

[whipdancer]

I've done a good bit of digging, but I can't find anything.  Is there an easy way (or a recommended way) to change out a cache drive and preserve everything on it? 

Thanks!
Whip

[JorgeB]

Backup and replace, works with any cache filesystem:

https://lime-technology.com/forums/topic/46802-faq-for-unraid-v6/?do=findComment&comment=511923

 

Online replace, btrfs only:

https://lime-technology.com/forums/topic/46802-faq-for-unraid-v6/?do=findComment&comment=480419

 

[whipdancer]

14 hours ago, johnnie.black said:

Backup and replace, works with any cache filesystem:

https://lime-technology.com/forums/topic/46802-faq-for-unraid-v6/?do=findComment&comment=511923

 

Online replace, btrfs only:

https://lime-technology.com/forums/topic/46802-faq-for-unraid-v6/?do=findComment&comment=480419

 

I found that first link previously, but I didn't think it applied in this case - so maybe I don't understand something.

I would like to preserve my docker containers as they exist. It is not clear to me that this method addresses that concern.

Will that method preserve my docker containers?

[JorgeB]

54 minutes ago, whipdancer said:

Will that method preserve my docker containers?

Both methods will preserve everything, second one can even be done with dockers and VMs running, but on btrfs only like I said.

[whipdancer]

2 hours ago, johnnie.black said:

Both methods will preserve everything, second one can even be done with dockers and VMs running, but on btrfs only like I said.

Thanks for the clarification. I do appreciate it.

Whip

[whipdancer]

After following the steps outline, my new cache drive does appear to have all the prior data intact.  However, the docker containers didn't show back up after re-enabling docker.

How do I get the system to recognize the dockers?

[JorgeB]

If all was done correctly docker containers would appear as they were, in any case you can easily re-add the existing dockers using the previous templates or CA previous apps, as long as appdata is the correct place all settings will be maintained.

[whipdancer]

6 hours ago, johnnie.black said:

If all was done correctly docker containers would appear as they were, in any case you can easily re-add the existing dockers using the previous templates or CA previous apps, as long as appdata is the correct place all settings will be maintained.

 

I went ahead and just redid "Add Container" for each and they are all intact working now.

Thanks again!

Whip