Hello Members, After much support from the nice guys are Starwind we have Identified that the issue looks like it was either Windows Defender or eSet server antivirus. (not sure which) After uninstalling both the performance went up to the expected transfer rates. If anyone else having performance i...

Hello Again, I've had some phone support today with Starwind and they agreed something's not quite right!. I have to cut short the phone conversation but will continue tomorrow. In the meantime I decided to create a Ram disk with loopback to test if the performance was the same and yet again the thr...

Oleg(staff) wrote:Hello verticalsoft,
Did you install Loopback Accelerator Driver during the process of StarWind installation?

Yes confirmed, I did the Server setup.

Kind regards
Daivd

Can any other members test the speed of loopback starwind storage please? I'm not even talking about making it highly available. Just test your underlying storage and note your speeds. Then create a 100gb starwind storage without any caching and attach using 120.0.0.1 loopback. I've tested on 2 Dell...

Hello Vitaliy,

Any other suggestions?

Kind regards
Dave

100% I've setup This before several times, I also use the same configuration for my customers... I'm Just wondering if this is a bug with current version? 1. And customers have a good performance, right? 2. No, we have not notieced the performance issue with the current build. 3. What SSD disks do ...

David, Did you configure everything by this guide? https://www.starwindsoftware.com/resource-library/starwind-virtual-san-hyperconverged-2-node-scenario-with-hyper-v-cluster-on-windows-server-2016 100% I've setup This before several times, I also use the same configuration for my customers... Kind ...

Thank you for report. Could you please create a replica, and test same HA device? We need this for deep undestarding of the performance issue. Also, below you can find the best practices for RAID controller: RAID5 on SSD: Disk cache policy: default/enabled; Read policy: No Read Ahead; Write Policy:...

Hello, Could you please try next: 1. Use Microsoft DiskSPD utility for benchmarking: https://gallery.technet.microsoft.com/DiskSpd-a-robust-storage-6cd2f223 Below are few commands for cmd and several patterns: diskspd.exe -t6 -b4K -r -w0 -o64 -d60 -h -L -c50G D:\test.io > c:\test\4k_random_readSSD....

I shall try your bench suggestions and come back to you.

Kind regards
David

Anyone?

Bump

I had similar issues at first, and what fixed it for me was: 1. Disabling all the cache, at that speed, cache is almost useless anyway. 2. What is the underlying network speed for the replication network? you have a separate network just for the replication right? it's over 1gb right? 3. iSCSI or S...

I have some Starwind Virtual SAN performance Issues and would love some pointers. I have a 2 node setup with the following-: 2 X Dell R630 each with:- 2 x 1GB Nics (Management) 4 x 10GB Intel X-540 (All setup with Jumbo and performance checked with iperf3) getting approx 9gb transfer! ALL SAS SSD BA...