Backup concept with RAID0? ZFS-Pool

[oops404]

Hello all,

i`m new to PROXMOX but i love it. Now i have setup my first setup and it is working but the backup function works not so how i wanted ;-)

I have a miniPC with 3x 1TB SSD in a ZFS Pool Raid0 which i have generated over console to give this pool as extra mountpoint to more than one container. Works like a charm. Then i have two externel 256 SSD HDDs over USB3.0 in RAID1. There is the local storage where i created Proxmox on it and alle the local container storage.

I have in my network a older Synology NAS with a ext4 Raid0 Pool which i can access over NFS. I do my daily backups of all containers to this box. Well all works fine but the ZFS Pool is not included in the backup because it is a manual generated mount point if i read the documentation correctly.

I thought i use RAID0 because i have a backup but now it feels a bit bad if one of the 1TB SSD have a failure i`m lost or?

Any idea how i can backup the ZFS Pool so that i can easily restore everything if a SSD says bye? I have Macrium Reflect on my personal windows computer and wanted to backup the data over the two network shares but it looks like the software only supports backups from my local windows computer.

Are there some options in the synology NAS? Or in proxmox? I read often rsync but i dont understand if it is really a good solution.

Yeah and i`m new to Linux. So i`m a windows boy but till now i love it ;-)

Best

 

[UdoB]

You can modify the configuration from "raid0" (which is simply striped vdevs in ZFS terminology) by attaching another SSD of the same or bigger size to each vdev. You can also remove one of those three to get a free Port (as long as no RaidZ is involved). Google is your friend...

 

[oops404]

Thank you for the advise but then i think would recreate it with RAIDZ1 but this is not a backup for me.

I want to backup the data. Is there maybe a windows software where i can just sync the stuff of a network drive to another network drive with compression or so and maybe send only the diff?

But maybe there is a better solution to donit without my windows client.

EDIT: i I think i will try my luck with rsync.

Someone better idea?

 

[oops404]

Well i have done it now with rsync which works very well for the kind of purpose i need. I dont need permissions or so - it is only data.

 

[Dunuin]

I thought i use RAID0 because i have a backup but now it feels a bit bad if one of the 1TB SSD have a failure i`m lost or?

With 3x 1TB disks in a raid0 you get 3 times the chance of losing everything compared to a single 3TB SSD without raid.
So usually a really bad choice if you care about your data.

 

[oops404]

With 3x 1TB disks in a raid0 you get 3 times the chance of losing everything compared to a single 3TB SSD without raid.
So usually a really bad choice if you care about your data.

oh dude - you got me. lost in making to many in the mind... Maybe i should switch to one 4TB M.2 SSD.

 

[LnxBil]

Are there some options in the synology NAS? Or in proxmox? I read often rsync but i dont understand if it is really a good solution.

ZFS is able to send/receive your pool or just datasets incrementally to another ZFS pool. This is the best way to archieve this. You need a ZFS on the receiving end of course.