Can TrueNAS Connect to Another TrueNAS via iSCSI for Storage Expansion?

I am exploring the option of expanding TrueNAS storage capacity by connecting TrueNAS to another TrueNAS system’s SCSI sharing. Who has successfully achieved it? Can you provide me with relevant cases for reference

No, as far as i know of, it can’t be done in a supported and reliable way. Truenas is designed to provide storage not recieve it via iscsi.

Have you also successfully logged in through SCSI and found a network block device through lsblk, but the device cannot be found on the web console, resulting in the inability to create a new storage pool?

No, i know that mounting exernal storage in any way, is not supported and since i value my data i don’t try unsupported things.