The operating system of the application server is Linux.
The network cable between the storage device and application server is disconnected during service running, and mapped LUNs on the application server have file system errors, such as file system read-only and mount failure.
Step 1 Replace the network cable to restore the network service.
Step 2 Use the ext2 file system as an example. Run the fsck.ext2-a command to fix the file system.
Network cable damage causes file system errors of mapped LUNs.