Network Usage for Ceph and iSCSI

[el_vagokz]

Good afternoon,

Currently, we have a dedicated bond1 interface for Proxmox Ceph traffic and a separate bond2 interface for VM traffic.

Would it be possible to use bond1 for iSCSI connectivity as well, without any negative impact on performance or stability?

 

[LnxBil]

Would it be possible to use bond1 for iSCSI connectivity as well, without any negative impact on performance or stability?

Short anwser: no, you could always impact performance and stability.

Longer answer: it depends on a lot of factors and you may need to tune a lot of things (e.g. QoS / traffic shaping). This is not easy, adding another bond is always the better solution. The optimal configuration to use in a CEPH cluster is 4 dedicated networks (VM, Corosync, CEPH private, CEPH public).