Performance questions on a dual xeon 2620v3 X10 supermicro board with a SAS2 (16 drive) backplane. 128Gb ram - Running Proxmox - 1 VM running mySQL , 2nd VM for data manipulation.
The backplane has a single SAS connector to the controller in IT mode
right now on the backplane -
8 x 10 TB HGST drives for storage pool (probably will be 4 mirrored vdevs for total 40TB instead of RAIDZx
3TB WD and 2 15k 130Gb Seagates
2 Satadom 64Gb drives (1 for boot, 1 for storage)
which will provide better performance ?
1. Zlog on the PCIe bus with Nvme vs fast ssd on SAS2 backplane?
2. L2ARC - PCIe options or fast SSD on SAS2 backplane
Filesizes range from 20Mb to 100Mb - a few approach 500Mb.
I guess the question is where will the bottlenecks occur - at the PCI bus or controller/backplane
(the data is backed up on an older slower storage while I optimize the setup)
11Blade
The backplane has a single SAS connector to the controller in IT mode
right now on the backplane -
8 x 10 TB HGST drives for storage pool (probably will be 4 mirrored vdevs for total 40TB instead of RAIDZx
3TB WD and 2 15k 130Gb Seagates
2 Satadom 64Gb drives (1 for boot, 1 for storage)
which will provide better performance ?
1. Zlog on the PCIe bus with Nvme vs fast ssd on SAS2 backplane?
2. L2ARC - PCIe options or fast SSD on SAS2 backplane
Filesizes range from 20Mb to 100Mb - a few approach 500Mb.
I guess the question is where will the bottlenecks occur - at the PCI bus or controller/backplane
(the data is backed up on an older slower storage while I optimize the setup)
11Blade