iXsystems TrueNAS R-Series (SMB)

Model number: R20
Storage Category: Software Defined Storage - Hybrid
Drive quantity, size, type: 

• 10 x 10TB SAS HDD HUH721010AL4200 (Primary pool drives)
• 1 x 3.84TB SAS SSD XS3840SE70055 (ZFS SLOG write cache device, overprovisioned to 16GB)
• 1 x 960GB SAS SSD XS960SE70055 (ZFS L2ARC read cache device)

Storage configuration: RAID 10
ZFS array of striped 2x HDD mirrors with 2 SSDs for read/write cache.
Firmware version: TrueNAS-SCALE-23.10.0
Connection protocol and speed: 10 GbE SMB
Additional support: All models and configurations of TrueNAS R-Series R20 with specifications equivalent or greater than the above

General product family overview:
TrueNAS is an Open Source storage operating system built on OpenZFS. With the TrueNAS R-Series, iXsystems integrates TrueNAS with the single-controller hardware that has configurable performance.
The TrueNAS R20 single controller hardware is a compact 2U system with 12 drives.

Vendor Settings:

• Caching used: Yes
• Read/write caching: One SSD is used as a secondary ZFS ARC device for read caching. One SSD is used as ZFS SLOG device.
• Does vendor solution support SMB write-through? Yes
• How SMB write-through enabled/disabled? Access the Datasets page and select the dataset being used for the SMB share. Select Edit and then modify the Sync setting.
• Was SMB write-through enabled during the testing? Yes
• Networking: MTU=9000
• Multipathing / link aggregation used: No
• Array deduplication used in testing: No
• Array compression used in testing: Yes