SOLVED Pool gone offline after disk change - please help!

[MiguelNo]

My system had two pools:
1st one was a 2*500Gb disk mirror pool just for testing which was the system dataset; and the 2nd one which was a 4*4Tb disk striping pool with live data.
Wanted to change the 2*500Gb disks for 2*2Tb disks, so I moved the system dataset from the 2*500Gb pool to the 4*4Tb pool and deleted the 2*500Gb
Once I physically changed the 2*500Gb disks for 2*2Tb disks, I started the system and the 4*4Tb pool was offline.
The system boots up from a single SSD.
My disks are all internal to my PC rig, connected using motherboard's sata and a PCI sata board.
I am a total new one on this TrueNAS system and everything seemd to run well, until now :-(
Please help. Thanks

 

[MiguelNo]

Hi again.
Please don't publish this post. It was a beginner's error: I have not checked that 2 of the 4*4Tb pool disks had not the cables connected.
As I am using a keyboard/screen hub, I didn't notice it.....
Oh well. The pool is now online and TrueNAS is still running well (not me, though)
Sorry for this and have a nice week
Thanks a lot