Proxmox cluster Kills my ssd?

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emanuelx

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Dec 19, 2022
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Hi all,

I have a Proxmox cluster with two nodes.
  1. node1 - where Most of the apps are living
  2. node2 - only used for plex because the transcoding beelink eq14 - intel n150

I have the cluster because I want to centralize the two nodes on the same url easier to maintain.

In this Proxmox setup, I don't do anything related to the cluster, like replication backups on other machines or migrating VMs's

Both nodes are running in SSD:
  • node 1 - Western Digital Red SSD 512 in ZFS mirror mode (used for boot and applications)
  • node 2 - single NVMe for boot and apps, I only use two LXC containers here.

So, after some reading, I saw some users saying cluster may wear out the SSD because Proxmox in a cluster will create a lot of logs.

I want to know if using the cluster like I use will cause wearing out of my ssd's?

Should I split cluster and use the new application "Proxmox Datacenter manager"
 
emanuelx said:
I want to know if using the cluster like I use will cause wearing out of my ssd's?
Click to expand...
Use proper enterprise SSDs and no consumer/prosumer hardware. It's just that simple. I've been running cluster >10y on the same SSDs without any problem, yet enterprise hardware.

emanuelx said:
I want to know if using the cluster like I use will cause wearing out of my ssd's?
Click to expand...
No, cluster is not the only source of a lot of writes. Just don't use crappy SSDs.
 
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LnxBil said:
Use proper enterprise SSDs and no consumer/prosumer hardware. It's just that simple. I've been running cluster >10y on the same SSDs without any problem, yet enterprise hardware.


No, cluster is not the only source of a lot of writes. Just don't use crappy SSDs.
Click to expand...
Do you have any recommendations for 2nd hand ssd?
 
emanuelx said:
I want to know if using the cluster like I use will cause wearing out of my ssd's?
Click to expand...
The Disk page on each node has a Wearout percentage column on the far right (you may need to scroll).

emanuelx said:
Does it make sense for you to have boot in zfs?
Click to expand...
Maybe...? We used it for mirroring the boot drive. It also has built in integrity checks. It does cause more wear because of its copy-on-write process, but there are ways to alleviate that.
 
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Thank's for the tip, like you said, people have different opinions and let me be confuse but at the same time I will learn more about the system.
Impact said:
I do recommend used DC SDDs too but I also recommend you check yourself. Everyone seems to have a different opinion on. Mostly because it's workload dependent.
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