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MPIO issues for NVMe-oF initiator
Posted: Thu Jan 30, 2025 8:04 pm
by someuser
Hello. We are testing NVMe-OF Initiator for suitability for our tasks, and a few issues have arisen:
1) Multipath does not work - multiple connections to one LUN give multiple devices.
2) Connecting via iSCSI Initiator interface according to your manual is not working - Login Error. Can only connect via CLI.
Setup: OceanStor Dorado 5000 V6, Windows 2019, Mellanox ConnectX 4-lx.
Re: MPIO issues for NVMe-oF initiator
Posted: Fri Jan 31, 2025 3:18 am
by yaroslav (staff)
Multipath for SAS devices is to be enabled in Windows separately.
CLI connectivity issue is known and relates to the good old iSCSI initiator operation. Our own UI TBA.
Re: MPIO issues for NVMe-oF initiator
Posted: Fri Jan 31, 2025 6:04 pm
by someuser
I know, I installed MPIO and DSM - but the problem persists.
Re: MPIO issues for NVMe-oF initiator
Posted: Fri Jan 31, 2025 7:15 pm
by yaroslav (staff)
Did you enable MPIO support for SAS devices?
Re: MPIO issues for NVMe-oF initiator
Posted: Mon Feb 03, 2025 11:23 pm
by Bartek02
someuser wrote: ↑Thu Jan 30, 2025 8:04 pm
Hello. We are testing NVMe-OF Initiator for suitability for our tasks, and a few issues have arisen:
1) Multipath does not work - multiple connections to one LUN give multiple devices.
2) Connecting via iSCSI Initiator interface according to your manual is not working - Login Error. Can only connect via CLI.
Setup: OceanStor Dorado 5000 V6, Windows 2019, Mellanox ConnectX 4-lx.
For issue 1, have you verified if multipath is correctly configured on both the initiator and target sides, including the necessary drivers for NVMe-OF support? For issue 2, are you using the correct authentication and network settings in the iSCSI Initiator, or could there be a firewall or port issue blocking the login attempt?
Re: MPIO issues for NVMe-oF initiator
Posted: Thu Feb 13, 2025 3:26 am
by melmedarda
On your Windows Server 2019 system, verify that the MPIO feature is installed. You can do this via Server Manager or by running the following PowerShell command:
Code: Select all
Install-WindowsFeature -Name Multipath-IO
Re: MPIO issues for NVMe-oF initiator
Posted: Wed Feb 26, 2025 11:31 am
by Michael (staff)
Yes, it makes sense to enable MPIO.