Hey

What is the VM configuration for your Test ? You need a Test VM with:

8vCPU
4 - 8 GB RAM
Thick Eager Zeroed Disk for Test
NVME Controller

For NVMe 300 MB/s is really poor. I saw much Higher values Like 2 GB/s and more on systems with raid-5.

Sorry but we saw this event too when CVM hung. Had 4 different customers where CVM and other Services hung without reason. All on latest version. No Events or alomaly on Hardware Level. No Backups or High Iops. No Consistency Check, patrol read. Nothing. There must be Something on StarWind VSAN itse...

Hey Guys, unfortunately we see those errors on all StarWind VSAN installations. It exists on all Installations independend of OS and installation type. It exists on CVM and Microsoft Bare Metal installations too. HPE, DELL and Lenovo. Different Raid Controller and type. It seems that the root cause ...

No Problem. I built many StarWind VSAN Installations before so i can give you some tips for best performance. What is the Design of both Hyper-V Nodes ? Which Vendor do you use ? Hardware RAID or Software RAID like Storage Spaces ? What disk types do you use ? Before you install StarWind VSAN check ...

@iceet: You can write me an PN if you need help to implement a hyper-v Cluster with starwind vsan. Or feel free to contact the awesome presales Team

Hey, as far as i know iSER is not supported on Virtual Network Adapter like Hyper-V Network Adapter or VMXNET3 on VMware. Why dont you go the way and install StarWind VSAN on both Hyper-V Server locally ? Then you can use iSER on SYNC Links and additional loopback connections for CSV. Be aware iSER ...

Hello Yaroslav, If you run StarWind VSAN inside a VM PCie Passthrough dont Work too. Because you can only create 4K RAID one These RAID controllers. The Windows VM see it as 4k too. So after that you cannot create 512-Byte Virtual Disk inside Starwind Management Console on this RAID for Systems whic...

Hey Guys, hope you all are donig well ? We found out that newest Broadcom and DELL PERC12 RAID Controller uses 4K for RAID Blocksize. Since you cant Change the Blocksize to 512-Byte, converged Setups with 2 StarWind Nodes and VMware ESXi or other Linux Distros is not possible anymore.Many customer u...

Hey,

did some testing.

Same results from iperf2 in comparison to iperf3.

best regards

Hello Yaroslav, Yes current Release of iperf3. No sync is getting much better speeds after disabling rss and deactivating Autotuninglevel. Did some tests today on an 2 node R750 Cluster with mellanox cards and can reproduce it.On Default settings Sync and ISCSI is Limited. After disabling rss and au...

Hello Guys, if you are interested in getting full speed for your sync and iscsi nics: this thread is for you: On a fresh 2 Node Hyper-v Cluster we did some performance tests and network tuning. Hardware consists of 2x Dell R450 Server with 2x Mellanox Connectx-5 (10/25Gbe) cards for iscsi and sync t...

New version of StarWind VSAN for Hyper-v was released today. https://www.starwindsoftware.com/release-notes-build We will see how it will run :-) "Added synchronization journal places on a disk with two working strategies: Best Performance: The strategy provides better I/O performance while all...

@yaroslav: Customer is using vSphere not Hyper-v. The link is for hyper-v.. @KIshore CA: Building Process of StarWind VSAN is really simple if you build up the ESXi Nodes and networking correctly. Please check following: Go to your VSA Appliance via Browser: https://"ipaddressofyourvsa":90...

Hello KIshore CA, please confirm following situation: • You are using VMware vSphere as Hypervisor (Not Hyper-v): • You are using StarWind Appliance for vSphere?: • You are using StarWind VSAN inside Windows VM on top of VMware vSphere?: • StarWind Management Console is installed on seperate Server ...

So first small Tests looks pretty good. I will publish results and latency summary tomorrow. Starting Point: -------------------------- 4K Random Read IOPS on Local RAID Controller: 384.000 IOPS per Node, 1500 MB/s (Dell H755 inside of StarWind Virtual Appliance which ist mounted via Pcie Passthroug...