First published on TECHNET on Jul 11, 2017
Hello, Claus here again. As you have probably noticed by now, we have a great ongoing collaboration with Intel. In this blog post we are going to look at Windows Server 2016
Storage Spaces Direct
on Intel's latest and greatest hardware, which includes a new processor family, Intel® Xeon® Scalable Processors, an iWARP RDMA network adapter with the integrated Intel® Ethernet Connection X722, and "Intel® Optane™ Solid State Drives.
We use a 4 node cluster, each node with configured with the following hardware (not including boot drive):
Intel® Server System R2208WF
2x Intel® Xeon® Platinum 8168 CPU (24cores @ 2.7Ghz)
128GiB DDR4 DRAM
2x 375GB Intel® Optane SSD DC P4800X (NVMe SSD)
4x 1.2TB Intel® SSD DC S3610 SATA SSD
Intel® Ethernet Connection X722 with 4x 10GbE iWARP RDMA
C States disabled
BIOS performance plan
We deployed Windows Server 2016 Storage Spaces Direct and stood up
4x 3-copy mirror CSV volumes
Cache configured for Read and Write
24 VMs per node
Each VM rate limited to 7,500 IOPS (similar to Azure P40 disk)
Each VM runs
, with 4K IO size at 90% read and 10% write rate limited at 7,500IOPS. This produces a total IOPS of ~720K (4 * 24 * 7,500).
Read IO is served at about
! This is significantly less than anything else we have seen before. Write IO is served at about
. The write latency is higher than read latency mostly due to network latency, as writes are mirrored in 3 copies to peer nodes in the cluster.
In addition, CPU consumption is less than 25%, which means there is plenty of headroom for applications to consume this storage performance.
We are very excited to see these numbers and the value that the new generation of Intel Scalable Processors, Intel Optane DC SSD devices combined with the Intel Ethernet Connection X722 with 4x 10GbE iWARP RDMA adapter can deliver to our joint customers. Let me know what you think.