When speedy, in-depth analysis is crucial in a NoSQL environment, relying on legacy hardware can hurt your company. We found that a Dell PowerEdge C6620 server with a Dell PERC 12 RAID controller handled more OPS for a Cassandra data analysis workload than a previous-generation Dell PowerEdge C6520 server with a PERC 11 RAID controller. This superior performance could help business units in your organization reap in-depth actionable intelligence from unstructured data more quickly.

1. Principled
Technologies®
* Dell provided the image showing a fully populated C6600 chassis. Our C6600 chassis included four C6620 blades and eight
disks. We conducted our testing on one blade and two disks.
Copyright 2023 Principled Technologies, Inc. Based on “Analyze data from Cassandra databases more quickly: Select Dell
PowerEdge C6620 servers with Dell PowerEdge RAID controllers (PERC 12),” a Principled Technologies report, January 2023.
Principled Technologies®
is a registered trademark of Principled Technologies, Inc. All other product names are the trademarks
of their respective owners.
This new Dell PERC 12 solution delivered stronger
Apache Cassandra distributed database performance
than a legacy solution
Analyze data from Cassandra databases more
quickly: Select Dell PowerEdge C6620 servers
with Dell PowerEdge RAID controllers (PERC 12)
Learn more at https://facts.pt/Qvw27zvl
Image provided by Dell*
Upgrading to the latest servers can improve your business’s ability to detect anomalies in unstructured
data and take quick action.
In our Apache®
Cassandra®
database tests with the Yahoo Cloud Serving Benchmark (YCSB), the new Dell™
PowerEdge™
C6620 with Dell PERC 12 processed more operations per second with lower application
latency than a previous-gen PowerEdge C6520 with PERC 11.
Total operations per second on YCSB workload B
Higher is better
Dell PowerEdge C6620 with PERC 12 Dell PowerEdge C6520 with PERC 11
249,210.0
198,161.3
Average read latency on YCSB workload B
Milliseconds | Lower is better
Dell PowerEdge C6620 with PERC 12 Dell PowerEdge C6520 with PERC 11
1.82
2.31
Average update latency on YCSB workload B
Milliseconds | Lower is better
Dell PowerEdge C6620 with PERC 12 Dell PowerEdge C6520 with PERC 11
1.29
1.86