HDD spinndown

[Jocumbus]

In TrueNas there is an option to set a sleep/standby mode for HDDs. In my experience, however, this does not work in such a way that the hard drives actually shut down reliably after a certain time. TrueNas accesses the disks too often for various reasons, even if no user data is being written. 
I would like to see a reliable standby option for HDDs (perhaps for an entire pool) that actually spins down the hard drives completely. 

My use case (perhaps a bit special) is that I have all my active data in an SSD pool and only use my hard drives as bulk storage for old data and as a first backup of my SSD pool. Therefore, my hard drive pool would only need to be active for direct user access or once a day for an automatic backup of the SSD pool and otherwise not run.

But maybe there is another solution that I haven't found yet?

Edited December 3, 2024 by Jocumbus

[zero]

That would also be my wish.

I live in Germany Electricity cost is quite high and i know i could use an only SSD pool but i have 4x4tb HDDs and 2xtb SSDs and don't plan to change that anytime soon.

I would i'm a noob and would love this exact feature.

User has 1 share !

All data from user is written on SSD and only once a day copied to hdds

The top things i access offen are also stored in SSDs and IF i need something else the hdds spin up. And the system Spins them up in the night does its things and then goes to sleep.

[hdd]

On 12/3/2024 at 12:00 PM, Jocumbus said:

I would like to see a reliable standby option for HDDs (perhaps for an entire pool) that actually spins down the hard drives completely. 

Very aware of conversations RE wear on drive motors spinning up (examples over in the TN community and here, on the unraid community and r/homelab), might it be intrest. Ether way the more options the better thought it might be less of a 'turn key' the product seems to be going for.

It would be amazing if they could galvanize some kind of data study in a wider community.