New PVE single Host - Creating a storage pool with 4 hdd

T

Tittan

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Sep 27, 2021
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Hi, all I'm quite new to Proxmox.

I have a new installation of Proxmox VE 7.2 in my HPE Microserver Gen 8 with 4x 1TB WD HDDs. I read about the filesystems available but I cannot decide which method is the best for my case. Basically, I want to use all 4 HDDs in a single volume to store proxmox VMS and isos. Can anyone guide me with the correct configuration?

Thanks a lot.
 
As HDDs are terrible as a VM storage, because of the horrible IOPS performance, I would go with a raid10. Then you at least get double the IOPS performance compared to a raid5 or raid6.
In case you don't got a HW raid controller you could use ZFS as software raid10 for that when installing PVE.
In case you got a HW raid controller, use that to create your raid10 and then install PVE with LVM/LVM-Thin ontop of it.
If I rememebr right the HPE Microserver Gen 8 usually uses the onboard SATA ports, so no HW raid.
But when using ZFS keep in mind that 20% of the capacity should always be kept free (so only 1.6TB usable) and that it needs a lot of RAM. I would use 4-8GB RAM just for ZFS for that setup.
 
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Danuin thank you for your explanation.

In this setup, the budget is limited so more RAM is not an option for now I have to stay at 8GB. But the usage will be very light, with only one Linux pFSense or OpenSense firewall VM. So my difficulty here is to know which type of storage is better for both the isos and the VM disks.
 
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