Parallel file system check
 

Reboot of Linux server consuming more time when there is a file system check (fsck)
Most of our server are using ext3 file system
Is there any possibility to make parallel fsck during reboot ?

fsck will already do parallel checks of filesystems on different physical disks, though whether it can figure that out for LVM logical volumes may still be a question. Trying to do parallel checks of filesystems on the same physical disk would be counterproductive.

Best way to speed up lengthy filesystem checks is by switching to ext4.

Thanks for the reply,
The main problem is with LVM logical volumes and I am looking for a solution (to make parallel file system check)
Converting to ext4 is a secondary option.

I see that fsck looks for environment variable FSCK_FORCE_ALL_PARALLEL set (to anything).

fsck has 2 options FSCK_FORCE_ALL_PARALLEL and FSCK_MAX_IN see man page about their meanings. fsck will/can do parallel check.
You can read an interesting discussion about it here: https://bugs.debian.org/cgi-bin/bugr...cgi?bug=776034

If you unmount file systems cleanly on shutdown, you won't need to do frequent fsck checks.