Search found 63 matches

by jdeshin
Tue Dec 21, 2021 10:18 am
Forum: StarWind NVMe-oF Initiator [+Free], Deduplication Analyzer, RDMA Performance Benchmark
Topic: nvme-of initiator test license
Replies: 4
Views: 13821

Re: nvme-of initiator test license

Dear Yaroslav,
I've sent a request into your support.

Best regards,
Yury
by jdeshin
Tue Dec 21, 2021 9:43 am
Forum: StarWind NVMe-oF Initiator [+Free], Deduplication Analyzer, RDMA Performance Benchmark
Topic: nvme-of initiator test license
Replies: 4
Views: 13821

nvme-of initiator test license

Hello All!
I've got free nvme-of initiator and a license for test purposes. The (GUI) license is valid until 21.12.2021. Do I need to get a new license and reinstall it?

Best regards,
Yury
by jdeshin
Sun Oct 10, 2021 2:08 pm
Forum: StarWind Virtual SAN (VSAN) [+Free], HCI Appliance (HCA), Virtual HCI Appliance (VHCA) [+Free]
Topic: Nvme -of disks in clustered storage spaces
Replies: 3
Views: 1938

Re: Nvme -of disks in clustered storage spaces

Dear Yaroslav, In your second technical parer you say that it is possble to make nvme-of drive as a clustered shared volume. Can I use that drive in clustered storage spaces for redundancy? It's standard Windows Server functionality. For example, I have few nvme-of drives, then I will add those to c...
by jdeshin
Sun Oct 10, 2021 7:41 am
Forum: StarWind Virtual SAN (VSAN) [+Free], HCI Appliance (HCA), Virtual HCI Appliance (VHCA) [+Free]
Topic: Nvme -of disks in clustered storage spaces
Replies: 3
Views: 1938

Nvme -of disks in clustered storage spaces

Hi StarWind Staff! According to your technical papers: https://www.starwindsoftware.com/nvme-of-working-in-a-12-node-all-nvme-cluster and https://www.starwindsoftware.com/resource-library/starwind-nvme-of-initiator-creating-microsoft-failover-cluster-with-windows-server/ I have following question: C...
by jdeshin
Sat Oct 09, 2021 3:41 pm
Forum: StarWind Virtual SAN (VSAN) [+Free], HCI Appliance (HCA), Virtual HCI Appliance (VHCA) [+Free]
Topic: Poor performance
Replies: 18
Views: 6729

Re: Poor performance

Dear Yaroslav, Unfortunately my test period in the datacenter has expired and I no longer have access to the hardware. Since I was not able to achieve acceptable performance, I will have to choose the classic solution with shared SAS storage on the DAS. May be in the future I will try your software ...
by jdeshin
Fri Oct 08, 2021 1:27 pm
Forum: StarWind Virtual SAN (VSAN) [+Free], HCI Appliance (HCA), Virtual HCI Appliance (VHCA) [+Free]
Topic: Poor performance
Replies: 18
Views: 6729

Re: Poor performance

Points 2,3,4 were done.
I've tried point 1, but no big effect.
I've used 4 iscsi sessions to a local StarWind server.

Best regards,
Yury
by jdeshin
Fri Oct 08, 2021 9:23 am
Forum: StarWind Virtual SAN (VSAN) [+Free], HCI Appliance (HCA), Virtual HCI Appliance (VHCA) [+Free]
Topic: Poor performance
Replies: 18
Views: 6729

Re: Poor performance

Dear Yaroslav, I've made many tests in various combinations :) and below are my finally results: I've used three node HA configuration of StarWind vSan free whth volume size 1 TB (volume with size 3 TB cannot be created via powershell) on Microsoft Hyper-V Server 2019. Each node has one dual-port Me...
by jdeshin
Tue Oct 05, 2021 4:07 pm
Forum: StarWind Virtual SAN (VSAN) [+Free], HCI Appliance (HCA), Virtual HCI Appliance (VHCA) [+Free]
Topic: Cannot create few HA at the same time
Replies: 1
Views: 1481

Cannot create few HA at the same time

Dear Yaroslav, Yet another question :) I try to create three HA images from my control computer at the same time. After creation process for first image already running then I try to run second process and give following error: Request to HOST1 ( 192.168.58.119 ) : 3261 - control ImageFile -CreateIm...
by jdeshin
Tue Oct 05, 2021 3:40 pm
Forum: StarWind Virtual SAN (VSAN) [+Free], HCI Appliance (HCA), Virtual HCI Appliance (VHCA) [+Free]
Topic: Cannot create 3TB volume on HA disk
Replies: 3
Views: 1880

Cannot create 3TB volume on HA disk

Hello All!
I've created a 3TB StarWind HA storage and successfully map it as a disk.
When I try to create volume on that storage by running New-Volume cmdlet then I give unexpected error after a long time.
Do you have any restrictions etc. for volume sizes?

Best regards,
Yury
by jdeshin
Tue Oct 05, 2021 2:59 pm
Forum: StarWind Virtual SAN (VSAN) [+Free], HCI Appliance (HCA), Virtual HCI Appliance (VHCA) [+Free]
Topic: Long time initial sync
Replies: 9
Views: 3795

Re: Long time initial sync

Additionally some results: HA volume type - 3-way mirror HA volume size - 3TB sync time - 4h Network activity RDMA between hosts - ~0 bit/sec Network acivity non-RDMA between hosts- ~48 KBytes/sec Avg disk bytes/write - 1048576 Writes/sec - 237 Avg disk sec/write - 1ms disk bytes/sec - 248 723 435 A...
by jdeshin
Tue Oct 05, 2021 1:44 pm
Forum: StarWind Virtual SAN (VSAN) [+Free], HCI Appliance (HCA), Virtual HCI Appliance (VHCA) [+Free]
Topic: Poor performance
Replies: 18
Views: 6729

Re: Poor performance

I have reinstalled OS and StarWind software on the server. At this time CPU load is the same, but I still have an open question:
How can I determine that local accelerator driver works properly? It's a bad idea to reinstall sofware instead of diagnose the source of problem :)

Best regards,
Yury
by jdeshin
Tue Oct 05, 2021 1:39 pm
Forum: StarWind Virtual SAN (VSAN) [+Free], HCI Appliance (HCA), Virtual HCI Appliance (VHCA) [+Free]
Topic: Long time initial sync
Replies: 9
Views: 3795

Re: Long time initial sync

Synchronization runs in 256K Sequential blocks. It's amazing because my windows counter Avg bytes/Write show me 1MB. Is that block size used for creation HA image? I'll try to make performance tests with sequential IO 256 KB, but at this time my results are - random IO 128K is about 390 MB/s for in...
by jdeshin
Mon Oct 04, 2021 4:23 am
Forum: StarWind Virtual SAN (VSAN) [+Free], HCI Appliance (HCA), Virtual HCI Appliance (VHCA) [+Free]
Topic: Long time initial sync
Replies: 9
Views: 3795

Re: Long time initial sync

Dear Yaroslav, I've tried to place HA image to individual disk (Micron 5200 MAX 480 GB) and sync time was about one hour. The sync bandwidth was restricted about 127 MB/s with 1MB sync blocks. So, for 1.92 TB disk, the sync time was about 4 hours and for a 3.84TB disk - 8 hours. Could you please exp...
by jdeshin
Sat Oct 02, 2021 4:49 pm
Forum: StarWind Virtual SAN (VSAN) [+Free], HCI Appliance (HCA), Virtual HCI Appliance (VHCA) [+Free]
Topic: Poor performance
Replies: 18
Views: 6729

Re: Poor performance

Hi Yaroslav! OK, and how can I troubleshoot this case? One of the nodes have big CPU load, when I work with StarWind disk. I suspect, that your loopback accelerator does not works properly on that node. On "good" nodes, when I add connection, I have a list of ip addresses: good.png and on ...
by jdeshin
Sat Oct 02, 2021 5:48 am
Forum: StarWind Virtual SAN (VSAN) [+Free], HCI Appliance (HCA), Virtual HCI Appliance (VHCA) [+Free]
Topic: Long time initial sync
Replies: 9
Views: 3795

Re: Long time initial sync

Dear Yaroslav, Do iSCSI and Synchronization go over the same channels? No, I have two separate dedicated 25 Gbit/s links for iscsi/hb. If hardware RAID is not possible, please create StarWind HA devices on individual disks (i.e., with no server-scale redundancy) In this case the performance of StarW...