Customer noticed alarm "Host 0 Disk 1 missing"
root@JTAC> show chassis alarms
2 alarms currently active
Alarm time Class Description
2025-02-04 01:12:29 CET Minor Host 0 System boot from snapshot device
2025-02-04 01:12:31 CET Major Host 0 Disk 1 missing
The disk1 seems to have failed for the chassis & hence it has booted from snapshot device.
It has already done reset, but didn't clear the alarm & hence reboot may not help.
We will need to replace the chassis as SSD is built-in to chassis, if USB upgrade also doesn't help.