iSCSI interfaces

S

Singman

Well-Known Member
Sep 13, 2019
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Hi,
Setup : a cluster of 4 nodes and an iSCSI storage on NAS.
Nodes have 2 network interfaces, nic0 (1Gbps) and enx0 (2.5Gbps), bridged to vmbr0 and vmbr1 (not sure if I need to bridge enx0, that's a side question...). NAS have also 2 network interface but iSCSI is forced to only one, the 2.5Gbps.
When I'm doing any operation on storage, Proxmox look on every interfaces how to reach the iSCSI storage, and sometimes that make an error (aborting the operation). Is it possible to force Proxmox to only watch iSCSI on the network interface I configured ?
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On TrueNAS side, the portal is listening to only one interface, so it's ok, that's why he doesn't answer to other IP request.
That's a problem because it create a lot of trying connections and big delay.
 
Singman said:
On TrueNAS side, the portal is listening to only one interface, so it's ok, that's why he doesn't answer to other IP request.
That's a problem because it create a lot of trying connections and big delay.
Click to expand...
It is the iSCSI target that advertises the portals (where IPs are asigned). The iSCSI Target is the TrueNAS, so its the TrueNAS that informs the Initiator (PVE) about possible connection options (Portals).
Your situation is described as one of the options here: https://kb.blockbridge.com/technote...nderstand-multipath-reporting-for-your-device with a suggested solution.

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox
 
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