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PowerEdge R730 Performance
Hi all,
I have a Dell R730 with 2 x Xeon E5-2673v4 (20 core), 256 GB RAM, 16 x 2.5" Crucial 2TB SSD configured as a RAID-10 with a H730 Perc controller. On this device are 20 VMs, each configured with 8GB of RAM and 4 vCPU.
A couple of the users logging in via RDP are saying that the response times are slow and the VMs can feel a bit laggy at times.
Is there anything special I need to be aware of or does the above seem a reasonable configuration for the device?
Thanks for any input!
Wilbs72
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May 12th, 2024 16:40
The bottleneck was the amount of vCPUs assigned to the VMs. I didn't realise that you could assign 8 or 16 to each one and if half weren't being used, the resources would be used by other VMs.
It appears to be fine now.
(edited)
shuff12
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May 10th, 2024 21:16
i dont have much information to go by, so here's my basic checklist:
Firstly, ensure that your server's BIOS is updated to the latest version as BIOS updates often include performance improvements and bug fixes that could resolve stability issues.
Additionally, consider the network configuration, particularly if you are using link aggregation, as improper configuration can lead to poor network performance, which might be affecting RDP sessions.
It's also important to verify that all physical disks in your RAID-10 array are functioning correctly without any errors or rebuilds in progress, as these can significantly impact performance.
Lastly, ensure that your VMs are configured optimally within the server's resource limits; over-provisioning CPU or RAM can lead to contention and slow performance.
Wilbs72
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May 11th, 2024 06:07
Thanks for the reply.
All BIOS and firmwares are on the latest versions. It's one of the first things that I do and I check for updates regularly.
The network is configured as a Team and shows a 4Gbps link. All drives have no issues and appear to be performing well. On the Hypervisor, a large file copy will duplicate at around 2GB/sec.
This last bit is really what my question is about. Is my server configuration actually capable of providing 20 VM's with these allocated resources or am I asking too much of it? I'd expect this thing to fly along but there just seems to be a bottleneck somewhere.
Thanks again.
(edited)