SPC performance report - silvertonconsulting.com
Transcript of SPC performance report - silvertonconsulting.com
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SPC performance report Silverton Consulting, Inc. StorInt™ Dispatch This Storage Intelligence (StorInt™) dispatch covers Storage Performance Council (SPC) results1. Over the last quarter there have been 2 new SPC-1 v3 submissions, Fujitsu ETERNUS DX8900 s4 and Huawei OCEANSTOR 6800 v5. Some of our top 10 SPC-1 charts have changes, a select few of which are shown below. Once again, there were no new SPC-2 submissions since our last report.
SPC-1 results We begin our discussion with top 10 SPC-1 IOPS™ performance in Figure 1.
Figure 1 Top 10 SPC-1 IOPS
The two new submissions both broke into the new top 10 IOPS with the Fujitsu ETERNUS DX8900 s4, coming in as the new #1 at just over 10M IOPS and the new Huawei OCEANSTOR 6800 v5 coming in at the new # 8 at slightly more than 2.7M IOPS.
1 All SPC results available from http://www.storageperformance.org/home/ as of 28 May 2019
28 May 2019 SCI SPC PERFORMANCE REPORT PAGE 2 OF 4
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The new Fujitsu ETERNUS DX8900 hybrid storage system used twelve pairs of controllers (24 total) in their configuration with 768GB of cache per controller (18.4TB total) and a total of 576 SAS connected 400GB SSDs. This is the first time we’ve seen this many controllers in a FC storage system, normally they max out at 8 pairs/16 total. Not sure how Fujitsu managed to break through the 16-controller barrier but at 10M IOPS, they seem to have made it work well for them. Their 24-controller system is performing ~43% more SPC-1 IOPS than the nearest competition. In contrast, the new Huawei OCEANSTOR 6800 v5 hybrid storage system, had 4 pairs of controllers (8 total), using 512GB cache (4TB total) with a total of 168 SAS connected 960GB SSDs. In Figure 2 we present SCI’s computed, economic performance metric, the top ten IOPS/$/GB
Figure 2 SPC-1 Top 10 SPC-1 IOPS/$/GB
Once again, both new submissions broke into the top 10 IOPS/($/GB). The new Fujitsu ETERNUS came an at #7 with 140.4K IOPS/($/GB) and the new Huawei OCEANSTOR came in as the new #9 with 127.8K IOPS/($/GB).
28 May 2019 SCI SPC PERFORMANCE REPORT PAGE 3 OF 4
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The 12-controller pair node Fujitsu ETERNUS system cost $6.4M and held 90.4TB of ASU capacity, while the Huawei OCEANSTOR submission cost $2.6M and held 211.3TB of ASU capacity. We may need to revise this metric to use physical storage capacity rather than the ASU capacity. For example, the Fujitsu system had a physical capacity of 230.4TB, or an ASU capacity that was ~39% of physical SSD capacity and the Huawei system had 445.4TB of physical capacity, or an ASU capacity that was ~47% of physical SSD capacity. Not sure making the change to physical capacity would alter the rankings above but it’s interesting to note that one primary use case for SSDs was to reduce the over provisioning of spinning disk needed to support higher IO rates and yet here we are with all flash/hybrid systems doing much the same with SSD storage. Next, we show our top 10 LRT performance chart
Figure 3 Top 10 SPC-1 LRT
In Figure 3, the new Fujitsu ETERNUS DX8900 s4 came in at #9 with an LRT of ~0.153 msec. The new Huawei OCEANSTOR did not quite make the cut with an LRT of 0.2 msec.
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Top10SPC-1/1E*LRT(msec.)resultsasof28May2019
28 May 2019 SCI SPC PERFORMANCE REPORT PAGE 4 OF 4
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Considering the 24-controller system probably needs to have some level of inter-node coordination/communications, they managed a very respectable LRT. There was no mention of what the ETERNUS used for this in the documentation. We must assume they use the FC network to do so or the LUNs are dedicated to the controller pairs for performing IO.
Significance It’s great to see new SPC-1 submissions especially when they rank in our top ten charts. We’re not quite sure if the new 12 controller pair architecture is going to be the new normal from now on but it’s made a pretty significant jump in IOPS performance, at least for SPC-1 workloads. Next time we may show a new IOPS/($/[physical capacity]GB) metric chart to see if physical capacity makes more sense to use than ASU capacity, as an economical performance metric. We have presented in the past IOPS/GB NAND, so this may be just adding a cost dimension to that. As always, suggestions on how to improve any of our performance analyses are welcomed. Additionally, if you are interested in more block storage performance information, checkout our recently updated (May 2019), SAN Storage Buying Guide available for purchase from our website.2 In SCI’s SAN Storage Buying Guide we now provide top 30 results for some of our SPC performance charts and new, SCI proprietary Email, OLTP and Throughput ChampionsCharts™ for enterprise, all-flash, mid-range and SMB class SAN storage.
Silverton Consulting, Inc., is a U.S.-based Storage, Strategy & Systems consulting firm offering products and services to the data storage community
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2http://silvertonconsulting.com/cms1/product/san-storage-buying-guide/