DSM 7.1(.1) sees usb discs only as internal?

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Hi all,

 

I've been running DSM 7.0.1 on my ESXI 6.7 host for a long time now and I'm trying 7.1 and 7.1.1 as AME now can be activated (need h265 codec for camera) without a Synology account.

Since I'm running Surveillance station (and Plexserver) my internal discs can't be spun down.

But usb disc still can be spun down (or hibernate).

 

But in 7.1 and 7.1.1 usb discs are auto mapped to internal discs, which I don't want. I can't find any way to switch them back to external disc nor find anything about this online.

 

This test is with a usb stick, but my main NAS runs 2x 4Tb HDD in a dual usb bay.

Does anyone here know what can be done?

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Update:
I have figured out the problem and solution for this.

 

It has nothing to do with DSM version, I created a DSM7.0 for testing and there USB discs were also as internal. My running Tinycore Redpill 0.4 DSM7.0 NAS does see USB external correctly.

When using ARPL is used and you don't manually set the max sata drives, using USB discs will result in seeing them as internal drives!

 

So, setting the max sata drives in the ARPL configuration, fixes this issue.
For instance not correct:
- Set manually 5 sata drives in ARPL (ARPL disc and 2 NAS sata discs)

- Connecting 2 USB discs to the VM, will result in them being seen as internal (Internal drives 21 and 22 according to DSM)

Correct setup:
- Set manually 3 sata drives in ARPL (ARPL disc and 2 NAS sata discs)

- Connectin 2 USB discs to the VM, will be seen as external drive like normal!

[Orphée]

Did you create an issue on ARPL GitHub ?

@fbelavenutoc could analyse this if you do it.