TrueNAS Scale UI missing several disks

[fixem73]

I built a new TrueNAS Scale server with 10 disks. (TrueNAS-SCALE-23.10.1.1)
It is running well but only 6 disks are showing in the UI. I can see all 10 disks in the shell under fdisk -l.
I even used fdisk / mkfs from the shell on one of the "missing" disks successfully.

I have read other posts about using gpart and glabel but both commands in the shell return "command not found"

What am I doing wrong here?

 

[fixem73]

Of course after I post I finally find something related to my issue. Once I removed my 5 Disk DAS, all things worked as expected.

5-Bay USB HDD Enclosure Only Detecting 1 Random HDD

I have been trying to setup TrueNAS with an SFF Lenovo PC with a 5-Bay USB HDD Enclosure connected to it. There are 3 disks in the enclosure but TrueNAS can only detect 1 random HDD inside. There are no problem with the disks as Windows can detect all three drives when I plugged it into a...

www.truenas.com

I apologize for the duplication of posts

 

[Arwen]

It is all right asking for help, and then finding the answer. Thank you for the follow up post.

TrueNAS was written for the Enterprise Data Center market, so has limited USB support. I wrote a Resource on the various issues that can crop up;

Why you should avoid USB attached drives for data pool disks

This subject has been coming up quite often since about 2022. Perhaps because of TrueNAS SCALE has brought forth some attention to TrueNAS in general and ZFS in specific. Please note that this is about USB attached storage for ZFS data pools. On occasion, people use USB drives, (flash...

www.truenas.com

The one that bites people with multi-disk external USB attached enclosures is probably the serial number issue.

TrueNAS requires the disk serial numbers be unique in order to know they are not multi-pathed disks. But, most multi-disk external USB attached enclosures use the same serial number for all attached disks. Even 2 single disk USB enclosures from the same manufacturer may use the same serial number.