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I see. you dont really need to reflash your R700; just use it as hardware raid and put btrfs on top. that way you can use inline compression- perfectly adequate for non production/backup storage.

oookkkk..... I still have no idea what it does beyond what you already can do with an answerfile.

Whats autopve? How often do you install PVE? can describe a problem/issue you are trying to solve without discussions of toolset? I dont think I can answer as your feature description is too vague. pve is open source. its your lane if you want it to be :)

It can. its just a generic LSI Raid controller- but you lose all integrated firmware control (which is probably ok for zfs use, just sayin.) OP- what I didnt see in your post is WHY. what is the painpoint you are trying to solve, or is this just for fun?

Have you tried looking at the documentation? https://docs.ceph.com/en/latest/rados/troubleshooting/troubleshooting-pg/

You will lose pg coherency on some pgs, and lose entire pgs for others. if you no longer have at LEAST one OSD that contained a shard for that pg, you will need to destroy that pg manually.

Proxmox uses Generic ceph. there is no "other" version. "copy redundancy" # availability. there is a limit to how much time I want to spend on this subject. I'd suggest you read and understand what ceph is, how it works, and why the limitations presented to you are presented. If you want to...

The simplest way to accomplish what you're after is to install samba on pve, like so apt install samba you can then defined /mnt/pve/recovery (or whatever your mountpoint is) as a smb share, and access it on your windows machine using \\ip.of.my.pve\sharename this is not a good solution...

Storage isnt just about keeping your files. its about availability. A 3 host ceph cluster has no resilience to speak of. What happens when your cluster shuts off write access in the middle of the day and you dont know how to fix it? is there someone you can call, or do you have to become a ceph...

Yes. this isn't news or a mystery. ZFS has many OTHER advantages over lvm on block. performance is only one factor; if the zfs subsystem is providing SUFFICIENT performance for your application it is by far preferrable. You might want to consider whether the benchmarks you're chasing have any...

ceph with 3 nodes is not production quality, and should not be deployed outside a lab environment.

yes. your USB enclosure doesnt do what you think it does. Just because the marketing says its "USB 3.2 10gbit blah blah blah" doesnt mean that your host connection can, that the cable can, that the bridge chip can, nor the sata multiplexer. you're getting 400MB/S to the storage. I'd call that...

If the payload is on another disk (or raid volume) then you dont need to do anything. simply copy all your vmid.conf files and reinstall pve. once its installed, simply import your existing data stores and put the vmid.conf files back.

ok, so you have two options. first, you dont need a working python environment to edit /etc/network/interfaces and insert a stanza for vmbr0 but in your case, lets think through what you're actually able to accomplish. the most important question to ask here is WHERE would you back up your...

Then create it. there is no requirement for the bridge to have an uplink.

This, while true, is the wrong perspective. what is the CONSEQUENCE of downtime? put a cost on that, and you have an economic baseline. Its one thing if your massive ecommerce platform is out. its another if you cant access your emails for a few hours. If you are designing a solution, the...

there are a few things you should be aware of: using /dev/nvme* for zpool vdev markers is dangerous, since that nomenclature is POSITIONAL (which means, its specific to the slot you used, not the drive.) use WWNs instead. to do that, simply export your pool like so: zpool export NVME-ZFS-Pool...

The reason you cant find the answer is because its not something you can answer in a vaccum. as I alluded to above, it depends on just how dependable the network is, and how spammy/sensitive the service using it is. "conventional wisdom" has been that you don't want to climb beyond 32 nodes for...

A dual socket system with 2x Intel Xeon E5-2690v4 has the potential for 72800 "cpu units" of performance (more with turbo+hyperthreading but lets leave that for now) a dual socket system with 2x Epyc 9575F has the potential for 422400 "cpu units" (same comment applies) and is roughly twice as...

E5-2690v4 is 14c@2.6GHz, 135W. Epyc 9575F is 64c@3.3GHz, 400W. even if we ignore the MUCH newer process node, WAY faster memory, PCIe generations and just counted each at equal IPC: AMD (64*3300)/400= 528 instructions per watt Intel (14*2600)/135= 269. you would literally need half as many. I...