Linux_mount related faults

Fstab modification error causes the system to fail to start the repair scenario

1. Maintenance Mode or Rescue mode

2. Mount-o Rw,remount mount point # This way can also solve some partition read-only fault

3. Then modify the/etc/fstab

4. General Repair Fastab We will use Mount-o remount mount point to check if the card is dead, ctr+c stop check fstab until this command does not die

File system read-only failure repair case

1. RSYNC Bug
2. File system Internal automatic consistency (read-only)
3. Maintenance Mode or Rescue mode:

Mount-o Rw,remount mount point

Network File system NFS optimization problem

1. Mount-t Nfs-o Bg,hard,intr,nosuid,noexec,noatime,nodirtime 172.16.1.31:/data/mnt
2. Default Mount-t NFS 172.16.1.31:/data/mnt, CENTOS6 is good

Security requires sacrificing performance, the number of IO cycles is slow to

Local File System performance optimization

1. Mount device mount point-o defaults,async,noatime

Linux_mount related faults