Hello,
i`m currently in the state of finishing / optimizing a 3-Node Proxmox Cluster.
Its 3x Sc826, each dual 2670 with 128GB Ram (think of going to 192 as i have some 8GB Modules left). On PCI there are two ConnectX-2 dual-port (40 + 10Gb) cards and a LSI 9207 in each node.
Currently the nodes all idle in the range of 150-170W, but said without anything that isn't necessary turned of in the BIOS yet.
The third node is mainly for Quorum and Backup-Tasks and assembly and provisioning of shared storage (NFS + iSer) and secondary service's VM (Backup MX, mysql fan-in replication etc.).
So, i wonder if it`s worth to downgrade the CPU`s in this node to 2x 2630L for Power-Saving reasons.
Power in Europe is quite expensive, to say about 22 Euro per 100Watt in the DC.
An E5 2630L can be found for about 150 Euro, so a saving of 50W / CPU would payout in about 14 Months (without taking into account that the replaced 2670 can be sold ...)
I`ve read the thread about CPU Power Consumption, there is stated that idle consumption wouldn't differ much between the L and non-L Versions. On the other Hand the Voltage on the L-CPU`s should be lower, what in my understanding should result in powersavings.
So, does anyone have sort of a number how much (if at all) a 2670 differs from a 2630L in situations with a high quota of idle-time ?
i`m currently in the state of finishing / optimizing a 3-Node Proxmox Cluster.
Its 3x Sc826, each dual 2670 with 128GB Ram (think of going to 192 as i have some 8GB Modules left). On PCI there are two ConnectX-2 dual-port (40 + 10Gb) cards and a LSI 9207 in each node.
Currently the nodes all idle in the range of 150-170W, but said without anything that isn't necessary turned of in the BIOS yet.
The third node is mainly for Quorum and Backup-Tasks and assembly and provisioning of shared storage (NFS + iSer) and secondary service's VM (Backup MX, mysql fan-in replication etc.).
So, i wonder if it`s worth to downgrade the CPU`s in this node to 2x 2630L for Power-Saving reasons.
Power in Europe is quite expensive, to say about 22 Euro per 100Watt in the DC.
An E5 2630L can be found for about 150 Euro, so a saving of 50W / CPU would payout in about 14 Months (without taking into account that the replaced 2670 can be sold ...)
I`ve read the thread about CPU Power Consumption, there is stated that idle consumption wouldn't differ much between the L and non-L Versions. On the other Hand the Voltage on the L-CPU`s should be lower, what in my understanding should result in powersavings.
So, does anyone have sort of a number how much (if at all) a 2670 differs from a 2630L in situations with a high quota of idle-time ?