Entering FM state:5 because mbFound:0 local in headswap:0 on AFF A800 during ONTAP upgrade
Applies to
- ONTAP 9
- AFF A800
Issue
- During ONTAP upgrade, node failed to boot and stuck in a boot loop. The following symptoms and log messages are observed:
Entering FM state:5 because mbFound:0 local in headswap:0Entering FM state:5 because mbFound:0 local in headswap:0Entering FM state:5 because mbFound:0 local in headswap:0
This node was previously declared dead.Pausing to check HA partner status ...lock was released, continuing boot ...
WARNING: 0 disks found!
Storage Adapters found:0 Fibre Channel Storage Adapters found!0 SAS Adapters found!0 Parallel SCSI Storage Adapters found!0 ATA Adapters found!3 Unknown Storage Adapters found!
Select option 4 from the boot menu to choose disks for the root volume and spare core space.Target Adapters found:0 Fibre Channel Target Adapters found!0 iSCSI Target Adapters found!
WARNING: there do not appear to be any disks attached to the system.No root volume found.Rebooting... (press ctrl-c during boot to break reboot loop)
- From the maintenance mode of the impaired node,
"disk show -v"and"sysconfig -v"reports the following:
*> disk show -vLocal System ID: 53XXXXXXX
disk show: No disks attached to system.
*> sysconfig -v NetApp Release 9.11.1P19: Fri Mar 7 17:21:33 EST 2025 System ID: 053XXXXXXX (Node-13); partner ID: 053YYYYYYY () System Serial Number: 95XXXXXXXXX (Node-13) System Storage Configuration: Single Path System ACP Connectivity: Inband Active Backplane Part Number: unavailable Backplane Serial Number: unavailable
- Partner (working) node sees internal drives as expected.
- Power cycling the node (via BMC) did not resolve the issue.