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About MichaelBernasconi

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  1. Thank you very much for the quick reply! Having the data only on the cache drive and then making a backup from time to time seems like a reasonable idea. Do you have any idea how I managed to get such good disk performance in passmark? The VM I tested on is only 20GB and completely fits in RAM. Could it be that Unraid somehow moves the whole VM into RAM?
  2. Hi everyone, I have an Unraid server on which I'm running a bunch of VMs. My array consists of 2 of HDDs (no parity yet) and I have a fast SSD around that I'm currently not using. I ran passmark on a Windows 10 VM and got a result that I do not understand. According to the results my disk performance is in the 99th percentile. How can this be? My 2 HDDs should not be fast at all, right? Now on to my question about cache. My idea was to have files that I want to access fast on the SSD (cache) and also on the array (for backup). That would mean that the VMs only ever interact with the SSD and the mover writes back the updates to the array when it has time. As far as I can see Unraid does not really have that option. Both the "prefer" and "only" mode would result in the data being stored on the cache drive only while the "yes" and "no" modes would result in the data only being stored on the array only, right? Did I get something completely wrong here? Best, Michael
  3. Thank you very much for the replies! Daedalus asked why I do not want to use the Linux subsystem for programming. I do have experience using this and it works quite well. However, the whole reason why I'm looking into unraid is that I would like to separate things as much as possible. That means that I do not want to use the same OS for gaming as I do for work. About question 4. If I install a VM directly onto an SSD do I need to give it it's own fixed size partition or is unraid able to give a VM more size when needed? So could I just install a couple of SSDs and then put as many VMs on them as I want and unraid will handle the exact allocation for me? From what I have heard so far it does sound like unraid might be the thing I am looking for. Since I'd be buying a whole new setup to use with unraid I wanted to ask if there is anything I need to pay attention to when buying hardware? I know that for the PCIe passthrough my CPU and my mainboard need to support IOMMU passthrough. I think most modern CPUs (AMD and Intel) and mainboards support this, right? Is there anything else I need to look out for?
  4. Hi everyone, I am trying to figure out whether or not unraid is the right tool to fulfill my requirements. Currently I use a natively installed windows 10 which I use for leisure activities (gaming, browsing, etc). I also have virtual box installed with a bunch of linux VMs which I use for work (mostly programming). There are two reasons I use linux VMs for work. The first being that linux is nicer for programming, the second being that I like to keep things separated as much as possible. However, VM performance kind of sucks which makes heavy tasks such as machine learning a pain. My solution for that is to use windows for such tasks but then work and other stuff starts mixing again which I would like to avoid. So my idea for an unraid system would be to have a CPU with a high core count and two GPUs (a high end one and a mid range one). The idea would then be to have the ability to flexibly assign cores and GPUs to different VMs depending on what I currently need. So lets say I want to train some neural network on the high end GPU and play some (CPU heavy) game while waiting. I would then start the linux VM with the NN with the high end GPU and just a few cores and also start a windows VM with the mid range GPU and the rest of the CPU. This should in theory let me do both things simultaneously without too much interference, right? Now that you hopefully understand how I plan on using the system on to some more concrete questions. 1. Do you have an easier solution for my requirements? 2. Will unraid let me easily assign different resources to a VM before it is started? 3. Will linux / windows complain if they get assigned different GPUs (or no GPU at all) every time they are started? Let's assume I only have Nvidia GPUs. 4. Is it possible to save the data for each VM on a large (and redundant) HDD and then load it onto an SSD once it is started? In other words basically use the SSD as a cache? 5. How good is remote desktop performance between two VMs? In case it is bad is there any other easy way to use multiple VMs with the same peripherals at the same time? If you read through all of the above thank you for your time!