Yes - local as in 5400 RPM SATA - standard desktop, slow storage.. :)
It's still 'slow' being 5400 RPM SATA, but after setting the new VM to 'VirtIO-SCSI' and loading the driver, the performance is 'as expected'. I don't notice with with the Linux VMs because they don't do anything that requires a lot of disk I/O. Mostly Ansible/Python education and such.
https://i.postimg.cc/28f764yb/Untitled.png
I actually have some super fast Serial SCSI SSD drives I am going to use in the future. A storage vendor where I worked at ordered a bunch by mistake to upgrade our storage array and then left them sitting on-site for like 9 months. I contacted them to remind them we still had them in our data center and asked if they wanted to come and get them. I joked with our field engineer and told him if they didn't want them, I could find a use for them! He actually contacted his manager who gave us approval to just 'dispose' of them. So I thought why not recycle them? :)
I'm in the process of moving soon for a new job. Once I get settled, I'm going to upgrade the storage I use for VMs. Either to those SSDs or maybe a small NAS device. Ideally.. a NAS device that can support Serial SCSI. I'll need to get a controller and a cable for them, but considering the performance... it should be well worth it. And no - I didn't get fired for swiping the drives! Too many years invested in IT for something that stupid and I'm just not that kind of person anyway. I took a position that's a bit more 'administrative' and less technical; but with better pay, so I want to keep my tech skills sharp, just because I enjoy it.
This is just a 'home lab' - nothing that supports anything even remotely important. I'm so used to SSD now.. my desktop OS is on SSD, my CentOS machine is on SSD.. putting Windows on spinning platters is just painful anymore!
While I do have big oVirt setups running on pure SSD storage, I must admit that Windows (and Linux VMs) are perfectly usable on HDD software RAIDs, *if* everything is configured correctly (and you have a lot of RAM).
E.g. I'm typing this message on a Fedora VM running (w/ VFIO + nVidia GPU + USB passthrough) on a pretty beefy 8 y/o Xeon machine with 6 x 2TB MDRAID and ~10 other VMs (including Windows), and unless multiple VMs are trashing the disks, I get near bare-metal performance. (I even run 3D games on this VM...)
- Gilboa
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