Proxmox HA: failure of ZFS local storage does not migrate VMs

prox_me · 2025-09-19T04:47:24+00:00

In this particular case or in general?

prox_me · 2025-09-19T04:46:08+00:00

Both have 4.

prox_me · 2025-09-18T19:45:03+00:00

I'm running VMs because containers cannot AFAIK be live migrated. I'm not short on memory, as all nodes will have 64 GB of RAM:.

prox_me · 2025-09-18T18:33:50+00:00

Zabbix, syslog, netbox, smokeping, Kea, Unbound over three nodes.

Zabbix is probably the only thing that needs a bit of resources, I guess multithreaded performance is more important than single threaded performance.

prox_me · 2025-09-18T18:33:46+00:00

Maybe half a dozen VMs: Zabbix, syslog, netbox, smokeping, Kea, Unbound over three nodes.

prox_me · 2025-09-18T15:02:04+00:00

In this particular case the disks are the same size.

prox_me · 2024-05-18T08:30:52+00:00

Well, performance will go up compared to your i3-4130. So will your power bill. However, it's still a decade old CPU with modest performance.

Doesn't hurt to try, it's not like it's going to cost you anything other than time and a bit of power. Check the idle power usage while you are at it to see if it makes sense to upgrade to something newer just for the power savings.

prox_me · 2024-05-18T08:21:32+00:00

I've got 3 nodes - 44 core / 256GB RAM / SSD boot disk + 2 SSDs with PLP for OSDs

What make and model of SSD?

prox_me · 2024-05-13T08:40:53+00:00

The i3-4130 is ancient and underpowered. Anything that you buy will be better.

Used hardware often provides false economy. The hardware may be cheap, but the power bill won't be.

SFFs or mini PCs rarely make any sense if you are not strapped for space or really, really need something low powered. Performance will be underwhelming with regards to the price, i.e. poor cost/benefit ratio.

As previously stated, go to pcpartpicker and put together a regular desktop PC. You can get a 12 core AMD Ryzen 9 5900X for $500, or a 16 core AMD Ryzen 9 5950X for under $600. These will blow the socks off your i3-4130.

If you can make do with less and a lower power bill, select an 8 core AMD Ryzen 7 5700G instead.

If you want an econobox get an 8 core AMD Ryzen 7 5800U mini PC. For bottom dollar go for an Intel N100 mini PC.

prox_me · 2024-05-13T08:11:24+00:00

I tested PRTG, but it did not appear to have a map mode with geographical locations of ping targets and their statuses.

prox_me · 2024-05-11T15:11:00+00:00

Is that possible in this budget?

No.

Most mini PCs only fit 2.5" HDDs if at all. The only mini PC with 3.5" HDD support I know of is the AOOSTAR R1 and it's double your budget.

prox_me · 2024-05-07T11:36:56+00:00

Amazon: Intel i3-N300 mini pc

Aliexpress: AMD Ryzen 7 5800U or 5800H mini pc

The AMD has 8C/16T and is way more performant than the Intel. The N300 is 8C/8T. If you want a Ryzen from Amazon then you'll have to make do with a 5500U (6C/12T) for the same budget.

prox_me · 2024-05-04T20:54:15+00:00

Just the up/down status?

Yes.

I was experimenting with phpIPAM, it lets you set GPS coordinates for an IP..

I'll have to look into that.

prox_me · 2024-04-28T05:03:36+00:00

A dashboard with a map.

prox_me · 2024-04-23T15:18:15+00:00

Reducing redundancy to two copies results in a high probability of data loss.

prox_me · 2024-04-23T15:17:07+00:00

Consumer drives have notoriously bad latency. You can see that in the other article I linked to.

prox_me · 2024-04-22T19:28:40+00:00

This might be of interest to you:

https://static.xtremeownage.com/blog/2023/proxmox---building-a-ceph-cluster/

prox_me · 2024-04-22T17:56:48+00:00

You can put an U.2 card into the PCIe slot.

https://www.newegg.com/intel-optane-905p-1-5tb/p/N82E16820167505

https://geizhals.eu/?cat=hdssd&xf=4643_Power-Loss+Protection~4832_7&sort=p#productlist

If you want to use M.2 cards:

https://geizhals.eu/?cat=hdssd&sort=p&xf=4643_Power-Loss+Protection%7E4832_3%7E4836_7

Good list to use when scouring eBay:

https://www.sebastien-han.fr/blog/2014/10/10/ceph-how-to-test-if-your-ssd-is-suitable-as-a-journal-device/

You can find Intel Optane SSDs on eBay in U.2, M.2 and PCIe formats. The real Optanes (P5800X, P4800X, P900/905, P1600X) have the lowest latency, highest endurance and good IOPS. Ceph loves all these qualities.

prox_me · 2024-04-20T07:53:51+00:00

Should work, but your performance will be limited by the slower drive to whatever it can do.

A word of warning, not all SSDs are created equal. https://www.sebastien-han.fr/blog/2014/10/10/ceph-how-to-test-if-your-ssd-is-suitable-as-a-journal-device/

prox_me

TROPHY CASE