Proxmox VE SSD emulation helps virtual machines run more quickly when they are using non-SSD storage. At Bobcares, with our Proxmox Support Service, we can handle your issues.

Proxmox VE SSD Emulation

When using storage that isn’t an actual SSD, Proxmox VE has a feature called SSD emulation that may help virtual machines operate better. Proxmox VE notifies the guest OS inside a virtual machine (VM) that it is running on an SSD when it is enabled for the virtual disk of the VM.

Usage:

To see if “Discard” is supported by the underlying storage, we can try turning on SSD emulation as a temporary fix. It is advised to test and confirm any performance gains, nevertheless.

For some VMs that significantly depend on random reads and writes, we can try with SSD emulation; however, be ready to turn it off if compatibility problems arise.

Points to Remember

1. A conventional hard disk drive (HDD) cannot be magically converted into an SSD by using SSD emulator software. Depending on the workload, the real performance increases might not be noticeable.

2. The “Discard” option is a more important performance element for VMs running on non-SSD storage. Like the TRIM command for SSDs, this setting directs the underlying storage system to recover unused blocks. When “Discard” is enabled, speed gains are often greater than when SSD emulation is used alone.

3. Certain guest OS may not respond favorably to SSD emulation, particularly if they have been expressly tuned for conventional HDD behavior.

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Conclusion

In conclusion, the article provides a detailed explanation from our Experts on Proxmox SSD Emulation feature.