Hello,
my OMV 3.0.65 is running virtualized on an ESXi 6.5 server. I configured the hardware to have 4x vCPU (2,1 GHz) and 8 GB RAM.
Now I recognized, that this was maybe too much. Cause I am using only one Samba share to stream a movie sometimes and sometimes copy some files to the share. So really very basic needs as a home user.
Here are my CPU and memory usage statistics. Do you think I should reduce memory to 4 GB or even 2 GB? Also reduce CPUs?
1 vcpu and 1 GB of ram would probably be fine. I would use 2GB of ram just to be comfortable.
At the moment I still have 4 vCPU + 8 GB RAM, so very powerful.
When I copy one big file from the NAS to my Windows 10 PC i have in the beginning a very good speed (around 110 MB/s) but after some time the speed goes down a lot (to around 60 MB/S).
Why could that be? I use only very fast and high quality components.
Unless you are using some plugins that require a lot of RAM (like Virtualbox or Plex), then 2Gb should be more than enough for a NAS.
Linux will typically uses up all available RAM, which is normal, so the RAM usage percentage is not a good metric.
Your data rate issue might have to do with how your drives are set up in ESXI. On a NAS, it shouldn't have much to do with RAM or CPU. I use Proxmox, so I can't help, but my speed increased dramatically when I disabled caching on the drive settings.
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