FortiWiFi 80CM Show error EXT3-fs error (device sd(8,3))

[Supercalar]

I had shutdown FortiWiFi 80CM for Server Room Maintenance. after that, I had power on FortiWiFi 80CM but cannot boot up. I try to upload a new firmware via TFTP. It can boot up and working normal. but I try to console to FW80CM. It shows error as below

Reading boot image 2303584 bytes. Initializing firewall... System is started. fgtag.c - 154: Disk read failed: Input/output error

FW80CM3913600119 login: EXT3-fs error (device sd(8,3)): ext3_readdir: directory #294913 contains a hole at offset 0 EXT3-fs error (device sd(8,3)): ext3_readdir: directory #294913 contains a hole at offset 0 EXT3-fs error (device sd(8,3)): ext3_readdir: directory #294913 contains a hole at offset 0

How do I solve this error?

[ede_pfau]

This sounds like a hardware error - so you should open a Support ticket.

On the smaller FGTs, the internal flash disk often developed hw errors over time. Especially, if the disk was used for logging. Newer models are equipped with SSDs which can stand the frequent I/Os.