I have a 4x striped mirror (8x 7200rpm HDDs) setup. Tnas Core has a reserved 10G port for iSCSI (a different subnet). My (Windows 11) PC also has a reserved 10G port for iSCSI. Using a file backed iSCSI volume, I copy a single large file (~1TB) from the iSCSI volume mounted on my PC to a local NVMe …

Truenas core iscsi performance

George September 6, 2024, 7:53pm 2

I have a similar issue with SCALE.

Topic		Replies	Views
TrueNAS SCALE Performance Concern – SSD Mirrors + NFS + Proxmox (20Gbps Bonded) TrueNAS General	3	162	July 8, 2025
TrueNAS - PROXMOX - iSCSI : Read connection lost TrueNAS General CORE , iSCSI	1	599	August 6, 2024
Transfer speeds bottlenecked TrueNAS General CORE , Networking , SMB	6	279	October 25, 2024
Slow write speeds TrueNAS General SCALE , SMB	1	102	August 11, 2024
Performance issues with new SCALE 25.10.0 system [slow], compared to CORE 13.0-u6.2 [fast] TrueNAS General CORE , SCALE	2	195	November 19, 2025