Hello, I am running a test setup with two servers 1 x Fujitsu RX300 S6 with Intel x520da2 (10Gbpe) Nic <-- Proxmox host 1 x Supermicro e5-2620v3, 32 GB RAM with Intel x520da2 (10Gbpe) Nic <-- Nappit storage
I have set up the storage with 4x12Gbps SAS disks and a LSI 9300 HBA controller... locally on the storage i get with different random dd tests around 400MB/s read, which is quite okay (i dont have cache until now). The storage and proxmox host is direct attached with a 20Gbpe bond and i get around 18-19gbits with iperf.. when I now add a ZFS over ISCSI target (with comstar) on proxmox server and give a test vm a virtio disk (raw) on that storage i get around 150-170MB/s with the same dd test... If I run the volume through NFS share I get around 270-300MB/s... Can you help me identify why iscsi is so slow? Why don't i get the same read/write performance inside the vm, than on the storage directly? Thanks in advance, Steffen -- Steffen Wagner August-Bebel-Straße 61 D-68199 Mannheim M +49 (0) 1523 3544688 E [email protected] I https://steffenwagner.com Get my public GnuPG key: mail <at> steffenwagner <dot> com https://pgp.mit.edu/pks/lookup?op=get&search=0x8A3406FB4688EE99 _______________________________________________ pve-user mailing list [email protected] http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
