Which command-line tool would you use to do this?

You want to check an ACFS for consistency on the Linux platform. Which command-line tool
would you use to do this?

A.
advmutil

B.
asmcmd

C.
fsck

D.
acfsutil

E.
fdisk

Explanation:
Dismounting an Oracle ACFS File System
You can dismount a file system without deregistering the file system or disabling the volume on
which the file system is mounted.
For example, you can dismount a file system and run fsck to check the file system.
# /bin/umount /u01/app/acfsmounts/myacfs
# /sbin/fsck -a -v -y -t acfs /dev/asm/volume1-123
After you dismount a file system, you must explicitly mount the file system.
1. Use umount on Linux systems or acfsdismount on Windows systems. For information about the
commands to dismount a file system, see “umount” or “acfsdismount”.
2. Use fsck on Linux systems or acfschkdsk on Windows systems to check a file system. For
information about the commands to check a file system, see “fsck” or “acfschkdsk”.
Oracle Automatic Storage Management Administrator’s Guide
11g Release 2 (11.2)