Upgrade From Core to Scale iSCSI LUN Device No Longer Appears

[pdiminico]

Hi
I just upgraded from Core to Scale.
I had a iSCSI LUN setup and after the upgrade, my W2K22 server cannot see an device to mount a drive.
I have recreated the iSCSI Truenas side a dozen times and still, I cannot find a device within iSCSI Initiator.
I can see the target but, there are no devices after each recreation in Truenas.
This was functional and never an issue in Core.
I cannot create a iSCSI service in Scale which will appear as a device within iSCSI Initiator.
Any thoughts on what has changed?

 

[HoneyBadger]

Hi @pdiminico

Do you happen to have manually assigned LUN IDs for your devices (eg: you don't have a LUN 0)? The SCALE iSCSI target (scst) expects at least one LUN0 target to be present to enumerate.

 

[pdiminico]

HI, Thank you for your reply.
Sorry but, where would I assign the LUN ID in Truenas?

 

[pdiminico]

Sorry I do have a LUN ID.

 

[pdiminico]

Ok, just reread your post and found a prior post that the first LUN ID must be 0.
Once I updated the LUN to 0 I am able to see the device and mount my drive.
Thank you!!!!!!!

 

[HoneyBadger]

Ok, just reread your post and found a prior post that the first LUN ID must be 0.
Once I updated the LUN to 0 I am able to see the device and mount my drive.
Thank you!!!!!!!

Glad this got sorted! We're pushing a feature request upstream to the Linux SCSI target to allow it to respond to the SCSI SENSE commands on LUN0 even if there isn't an extent attached.