One large ext4 Directory for everything?

[fargo]

I know people these days swear by ZFS, but I'd like to continue using HW RAID for performance reasons. I plan to define the whole RAID virtual drive as one large ext4 Directory in PVE and use that to store everything. Is this a good plan?

 

[UdoB]

Is this a good plan?

No.

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Sorry for this too short an answer - a good answer could fill a chapter in a book. If that would be a good idea we would go that way - but nobody does, as far as I can see. LVM/LVM-thin/iSCSI/ZFS/NFS and "Directory" all have specific advantages...

A comparison is here: https://pve.proxmox.com/pve-docs/pve-admin-guide.html#_storage_types

 

[fargo]

No.

Hmmm, I want to have a large space for shared files between VMs and CTs. I can define two HDDs as RAID1 and format them as LMV-Thin for storing VMs and CTs. The remaining HDDs will be RAID5 and formatted as one large ext4 Directory for data. How does this plan sound?

 

[Impact]

ZFS can do all of that.

 

[LnxBil]

How does this plan sound?

Depending on the person you ask, you will get (probably) all answers you can mathematically get. As with everything in the world: it depends.
If it works for you, it's a good solution.