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Too bad UKSM is not a more serious project. Eve-NG uses it where it works like a charm. Granted, Eve-NG usage is not close to production use cases, but it's still cool to run a lab with 15 vMX routers all of which have 2 GB of RAM available, and have the Eve-NG system only use a couple of GB of...

I ran the ZFS test again with a trimmed SSD. Performance doubled but was still worse than EXT4. I keep getting spikes above 20% IO delay, but not all the time like before doing fstrim. I think it's improved enough to work with, but it's still just one VM and I like my EXT4 results better for...

Thanks again, I'm learning lots of useful things from you, I won't let the new knowledge go to waste. Do ZFS-partitioned SSD's need/support the fstrim operation too? Or is this something the ZFS fs will handle for me? I will try ZFS one more time with a trimmed disk to see if it makes any...

I did this, it gave the following output: root@proxmain:/# fstrim -v -a /ssd1: 212.3 GiB (227918135296 bytes) trimmed Is this something I should throw in a monthly cron job or something?

The SSD is a few years old, it served as a datastore in my ESXi box before. It didn't see heavy usage, some passive FreeBSD VM's I only used for things like IRC clients, and one Windows VM. In the meantime I have removed all ZFS partitions from the SSD and tried EXT4 just to see the difference...

Thanks, mine is looking like this now: zfspool: ssd1-vms pool ssd1/vms blocksize 32k content images sparse 0 I tried two more tests, first with thin provisioning and then without. Doesn't the recordsize for the new dataset need to be adjusted to 32k blocks too in...

OK, I set the record size of my ssd1/vms dataset to 32k. When I mount the dataset in the Proxmox storage GUI I get to choose a block size too. The default is 8k. I have tested two scenario's, leaving this to the default and setting it to 32k (all with the dataset at 32k as well). I'm also using...

Thank you guletz. I have general virtualization and storage knowledge (used to work with VMware professionally a lot). I've also done some reading and experimenting on ZFS. The block size you talk about, is that the thing you set upon zpool creation with the ashift setting? (I believe it...

Thank you guletz, I will try this out.

Of course, there are multiple ways to solve the problem. So how do you do the symlink? Let's say I want to have /tmp on another storage device, would I go about it like this? Create new /tmp location on new storage Move data from old /tmp location to new location Remove old /tmp directory...

Hello STH forum, I have a question about running Windows on Proxmox because this is giving me a bad time so far (mostly related to storage IO performance). Some relevant specs of the box I'm running this on: Intel server motherboard Xeon E3-1230 v3 32 GB ECC UDIMM 2x 120GB Kingston SSD as a ZFS...

Would you mind doing an explanation of this process of symlinking Proxmox directories to another storage target? I have tried to Google it a bit but I only find real painful scenario's where you have to adjust fstab in single user mode to make sure running daemons don't get screwed up. As a...

Thanks a lot for your added insight, guletz. Could you please clarify one more thing as I think I am missing something right now? The topic that Rhinox mentioned (found here) talks about PVE writing to the /etc/pve location a lot. Placing /tmp and /var/log on spinning disks would not fully...

El Tebe, the SuperMicro DOM's would be a perfect solution if they don't get killed. I have no idea about the durability of those. Could you provide some insight about how many nodes you run, their storage setup and how long the DOM's have been running and their lifetime indication? About the...

Thanks a lot for your reply. I might just grab an extra second hand SAS card and a cheap 10k or 15k RPM SAS disk and use that for the OS. Saves some money and should be good enough.

Dear Proxmox community, I have yet another question about Proxmox and SSD's. I apologize if the following is too redundant but I was not able to find exact answers and I'm hoping the people here can provide some perspective. I would be very thankful and will provide my experiences and results...