SRX 4600 rebooted itself following improper removal of storage media causing an outage on the network

SRX reboot automatically and following messages are logged. 

eventd[21149]: SYSTEM_ABNORMAL_SHUTDOWN: System abnormally shut downeventd[21149]: SYSTEM_OPERATIONAL: System is operationalintel-x86-64 kernel: FAT-fs (sda2): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.  
intel-x86-64 kernel: EXT4-fs (sda3): recovery complete
intel-x86-64 kernel: EXT4-fs (sda3): mounted filesystem with ordered data mode. Opts: (null)
11:45:13.008186+00:00 intel-x86-64 kernel: {1}[Hardware Error]: Hardware error from APEI Generic Hardware Error Source: 0  
11:45:13.008187+00:00 intel-x86-64 kernel: {1}[Hardware Error]: It has been corrected by h/w and requires no further action   
11:45:13.008187+00:00 intel-x86-64 kernel: {1}[Hardware Error]: event severity: corrected
11:45:13.008192+00:00 intel-x86-64 kernel: {1}[Hardware Error]:  Error 0, type: corrected
11:45:13.008192+00:00 intel-x86-64 kernel: {1}[Hardware Error]:   section_type: memory error
11:45:13.008193+00:00 intel-x86-64 kernel: {1}[Hardware Error]:   error_status: 0x0000000000000400
11:45:13.008193+00:00 intel-x86-64 kernel: {1}[Hardware Error]:   node: 0
11:45:13.008193+00:00 intel-x86-64 kernel: EXT4-fs (sda4): mounted filesystem with ordered data mode. Opts: (null)
11:45:13.045631+00:00 intel-x86-64 systemd-networkd[656]: Enumeration completed
11:45:13.046701+00:00 intel-x86-64 systemd[1]: Started Network Service.

The issue happened due to not properly unmounting the USB drive. It is recommended to always properly unmount a storage device before removal.

2025-04-28 : Article Created

2026-10-07: Verbose updated