2 Backend network
shulemmosko
33 Posts
March 1, 2022, 2:56 amQuote from shulemmosko on March 1, 2022, 2:56 amHi, our nodes have two 40gb nics for storage network, I am only using one 40gb nic currently for backend 1.
if I want to make use of the second backend nic on a separate switch, will it only give me redundancy or ceph will use both backend nic's without bonding and thus increase the storage network to 80GB?
I hope my question makes sense to you 🙂
Thank you!
Hi, our nodes have two 40gb nics for storage network, I am only using one 40gb nic currently for backend 1.
if I want to make use of the second backend nic on a separate switch, will it only give me redundancy or ceph will use both backend nic's without bonding and thus increase the storage network to 80GB?
I hope my question makes sense to you 🙂
Thank you!
admin
2,930 Posts
March 1, 2022, 10:16 amQuote from admin on March 1, 2022, 10:16 amBetter treat it as only one backend network and not backend 1 and backend 2. You can bond several nics to serve this backend network. Use LACP type bond, in addition to high availability it also doubles/aggregates the bandwidth as all ports are active, technically a single stream will not double the bandwidth but multiple streams will be balanced actively. Note you should check your switch model can support splitting the bond to connect to different switches, not all support this.
Better treat it as only one backend network and not backend 1 and backend 2. You can bond several nics to serve this backend network. Use LACP type bond, in addition to high availability it also doubles/aggregates the bandwidth as all ports are active, technically a single stream will not double the bandwidth but multiple streams will be balanced actively. Note you should check your switch model can support splitting the bond to connect to different switches, not all support this.
2 Backend network
shulemmosko
33 Posts
Quote from shulemmosko on March 1, 2022, 2:56 amHi, our nodes have two 40gb nics for storage network, I am only using one 40gb nic currently for backend 1.
if I want to make use of the second backend nic on a separate switch, will it only give me redundancy or ceph will use both backend nic's without bonding and thus increase the storage network to 80GB?
I hope my question makes sense to you 🙂
Thank you!
Hi, our nodes have two 40gb nics for storage network, I am only using one 40gb nic currently for backend 1.
if I want to make use of the second backend nic on a separate switch, will it only give me redundancy or ceph will use both backend nic's without bonding and thus increase the storage network to 80GB?
I hope my question makes sense to you 🙂
Thank you!
admin
2,930 Posts
Quote from admin on March 1, 2022, 10:16 amBetter treat it as only one backend network and not backend 1 and backend 2. You can bond several nics to serve this backend network. Use LACP type bond, in addition to high availability it also doubles/aggregates the bandwidth as all ports are active, technically a single stream will not double the bandwidth but multiple streams will be balanced actively. Note you should check your switch model can support splitting the bond to connect to different switches, not all support this.
Better treat it as only one backend network and not backend 1 and backend 2. You can bond several nics to serve this backend network. Use LACP type bond, in addition to high availability it also doubles/aggregates the bandwidth as all ports are active, technically a single stream will not double the bandwidth but multiple streams will be balanced actively. Note you should check your switch model can support splitting the bond to connect to different switches, not all support this.