The Dell PowerVault ME5 Series SAN/DAS Storage Series is optimized to run a variety of mixed workload applications - physical and virtual - for small businesses.
Based on the family of Intel processors, Dell PowerVault ME5 Series storage implements a block architecture with VMware virtualization integration and concurrent support for native iSCSI, Fibre Channel, and SAS protocols. Distributed RAID (ADAPT) delivers faster drive re-build times. And all ME5 Series arrays are managed by an integrated HTML5 web-based GUI.
The test objective is to maintain constant capture of video traffic during select storage failure scenarios, such as disk rebuild and controller failure. During these scenarios, frame loss was observed on the ME5 platform as tier 1 storage.
The following tests were performed to ensure a worst-case scenario for all sizing parameters:
- Disk drive failures
- Storage controller failures
- NIC failures
Results during normal load tests
Array | Version | RAID | Camera bit rate (Mb/s) | Percent read | Bandwidth MB/s (Mb/s) | Camera count | Controller IOPS | System IOPS | Disk IOPS |
ME5084 | 12 | Adapt | 5 | 10 | 284 (2272) | 450 | 3000 | 3000 | 47 |
5 | 20 | 205 (1640) | 324 | 2400 | 2500 | 47 |
Results during failure tests
The following table provides bandwidth-sizing guidelines based on our test results during failure tests:
Array | Version | RAID | Camera bit rate (Mb/s) | Percent read | Bandwidth MB/s (Mb/s) | Camera count | Controller IOPS | System IOPS | Disk IOPS |
ME5084 | 12 | Adapt | 5 | 10 | 256 (2048) | 400 | 2700 | 2900 | 80 |
5 | 20 | 190 (1520) | 300 | 2400 | 2800 | 80 |
Configuration
Component | Description |
Storage | PowerVault ME5084 |
Firmware version | INS200R02-01 |
Disk type | SAS MDL |
Disk groups | 2 |
Disks per group | 42 |
Disk capacity | 260 TB |
RAID | Adapt |
Protocol | SMB |
Component | Description |
Guest OS | Windows Server 2019 Standard Edition |
vCPU | 18 |
Memory | 16 GB |
NIC type | VMXNET3 |
Video disk size | 16 TB |
Video disk block size | 128 KB |
Component | Description |
Camera type | Virtual camera |
Codec | H.264 |
Bitrate | 5 mbps |
FPS | 25 |
Resolution | 1920x1080 |
ME5 Stripe width | A+2 |