Is there a best practice for CachePools ?

I would like to have one very fast cachepool but I need a backup every day.

Is the fs important ?

 

My idea is as follows:

 

1) 4TB m2.nvme as Cachepool (no Raid) (there will be Appdata, System, faster OS-Disks for the VMs and fast cache for Handbrake, Lancache, etc.)

2) 4TB m2.nvme mounted as unassigned device for the nightly backup of that Cachedrive

3) a folder on the Array for a weekly backup of the second (Backup)nvme

4) the important stuff an the Array (these folders included) will be copied an a NAS every Sunday after 3) is finished.

 

 

I would create a cronjob in the VMs that they will shut down at let's say 2 AM.

I would create a userscript that backups all VM-Disks, system and the fastcache folders from nvme1 to nvme2 and restarts the VMs

I am using the Plugin Appdata Backup from Robin Kluth for the Backup of the Appdata.

 

Is that a good way to go ?

What will be the preferable fs for this operation ?

Is there a good backup tool for unraid so that maybe I don't have to undergo all the hassle myself  ?

How do I setup unraid that the Cachefolders are truly fast (10GB Network speed)

 

I know this is a lot and I have searched the forum multiple times but I never found like a walkthrough for a fast and reliable setup like this.

 

Thanks a lot.

 

PS: If you think it is a good idea to create a new Forumstopic of this question, please feel free to copy this...

Id just do a nightly backup to array and skip the backup nvme. Or use it in a mirror. 

 

The appdata backups can be done with the CA Backup plugin. 

 

Note that even though you think you copied it to the array, it may still be on the cache due to mover shenanegans, so time the backup for before the mover runs.