The test results are based on a model in which the constant-bandwidth safety and security video traffic remained unaffected during a single node maintenance cycle, disk rebuild, or node failure.
To maximize performance for safety and security workloads, the Dell Technologies Safety & Security Lab recommends the following best practices:
- Use two SSD system drives per node in clusters where it is supported
- Cluster utilization not to exceed 70 percent capacity
Sizing guidelines are based on a combination of storage capacity and per node bandwidth. When sizing a cluster, make sure to evaluate the number of servers that write and read from nodes in addition to overall storage capacity.
We used 10 GbE interfaces with no more than two SMB connections per interface. A 10 GbE interface can accommodate up to four Archiver connections at the maximum Security Center-supported values.
We performed all tests with node or drive failures in the cluster (for example, with FlexProtect running) to ensure a worst-case scenario for all sizing parameters.
The following table provides bandwidth-sizing guidelines based on our test results.
Cluster | Security Center version | OneFS version | Archivers per node | Bandwidth MB/s (Mb/s) | Drive size | |
Per Archiver | Per node | |||||
A3000 | 5.10 | 9.4 | 2 | 62.5 (500) | 125 (1000) | 12 TB |
Configuration
Component | Details |
Storage | PowerScale A3000 |
OneFS | 9.4 |
Disk type | SATA |
Protection scheme | + 2d:1n |
Protocol | SMB |
Single node capacity | 200TB |
Component | Details |
Server | PowerEdge V670f |
CPU | Intel Xeon Gold 6354 3Ghz, 18C/36T |
RAID policy | 5 |
vSAN protection scheme | Erasure coding |
Memory | 512 GB |
Component | Details |
Guest OS | Windows Server 2019 Standard |
vCPU | 16 |
Memory | 14GB |
NIC type | VMXNET3 |
Video disk size | 50TB |
Component | Details |
Camera type | Vitual camera |
Codec | H.264 |
Bitrate | 4 mbps |
FPS | 30 |
Resolution | 720p |