mike548141

Hey if it helps I opened my ES1 chassis up today to try and find a way to quieten the fans. I found that the hardware is really a re-branded SuperMicro (both case and circuitboards). Controllers are marked as model BMB-937-JB-IS019 and power supplies are PWS-1K21P-1R https://www.supermicro.com/products/system/3U/937/SYS-937R-E2JB.cfm I found it would be quiet easy to disconnect the fans on the controller from their power source, its just uses molex connectors so you can unplug them the same way you would a case fan in a PC. There are 6 fans per controller, they are mounted in pairs, each pair has a separate molex connector to unplug. I did not open up the power supplies but it looks like they have at least 2 fans mounted as a pair as well.

Late to the conversation - but in case its useful for you @lxr200 . First off I will say I'm using TrueNAS Scale 24.10.2.2.... but I can talk to the hardware. I am using, An older generic PC: ASUS Z390 motherboard, i7 CPU, 64GB RAM, dual 10Gbe SFP+ network card etc. Nothing too special. A 2nd hand HPe Nimble ES1 (ES1-H65B) chassis with dual power supplies, dual controllers, and each controller has a dual port SAS card (2 x SFF-8088 SAS ports). A LSI SAS9207-8e host bus adapter (small form factor as its in a rack case), a couple of 1m SFF-8088 SAS cables connect the HBA to the ES1. 5 refurbished MDD 20TB 3.5" 6Gbs SATA drives, and some other smaller drives. The setup works really well - the drives present to TrueNAS properly and performance is as expected, I also see typical telemetry like drive temperature etc. TrueNAS Scale is based on Debian so you should have a similar experience using Unraid. The only complaint I have is the noise from the fans in the ES1 which stay on a fairly high rev irrespective of drive or ambient temperature. The ES1 fans do spin down if the chassis is not connected to the SAS cables, but being connected the the computer is causing them to stay high. Not sure if thats the HBA, computer, TrueNAS, or a bug in the ES1 firmware. I would suggest that you keep your 9207-8i for your internal drives, and buy an HBA that supports external SAS to connect to the ES1 e.g. a 9207-8e. Don't forget you need an HBA that suports IT mode. MC