10 More Discussions You Might Find Interesting
1. AIX
Hi Guys
I'm new here, and I need urgent help.
This my first steps to be Aix admin and I have this task
-instal Oracle database on Aix machine and create mounting point /u02 of size 100GB for Oracle Standalone database installation.
-download and install the following OS patches
- IV42025... (5 Replies)
Discussion started by: khaled_ly84
5 Replies
2. Solaris
Hello everyone.
I've been asked to check if something is wrong with the storage setup on these two SunOS 5.10 machines, which are being used as database servers with Oracle RAC configuration. Seems to be that the DB guy is complaining, telling that they are nearly out of space, which sounds... (4 Replies)
Discussion started by: kacareu
4 Replies
3. UNIX for Dummies Questions & Answers
Hello
I need to install a new application on my linux server but needs to have a new directory e.g /opt/InCharge as this is the directory that the application would ask for during installation .This directory needs to be mounted
if df -h it should appear as mounted (9 Replies)
Discussion started by: DOkuwa
9 Replies
4. Ubuntu
hi all:
as we know , when usb flash disk plug in and aotu mounted , the default permission of the usb flash disk is 700. that means others have no permission . the question: how to make others have read/write permission when the aotu mounted usb flash disk pluge in ? thanks !! (0 Replies)
Discussion started by: arnold.king
0 Replies
5. UNIX for Dummies Questions & Answers
how to check the record of previously mounted remote filesystems after the filesystems are unmounted .operating system is solaris 10 (0 Replies)
Discussion started by: ravijanjanam12
0 Replies
6. SCO
After System power get failed
File system is not getting mounted in read- write mode (1 Reply)
Discussion started by: gtkpmbpl
1 Replies
7. Linux
can somebody help me out in editing the /etc/fstab. I am on RHEL5 (Tikanga).
**The problem is that i have given a wrong LABEL in /etc/fstab for root volume and so after reboot, it is unable to resolve the wrong LABEL;
so, i have to edit the /etc/fstab :-(
-ilan (3 Replies)
Discussion started by: ilan
3 Replies
8. UNIX for Dummies Questions & Answers
how do you fsck the / filesystem? I know it does it automatically the next time I boot up following a switch on the wall shutdown but is there a flad somewhere that forces this on next boot up?
Thanks (2 Replies)
Discussion started by: DGK
2 Replies
9. Shell Programming and Scripting
Hi
I would like to write a shell script which should first check wheather the tape is placed in the tape drive .
if the tape is there
it should rewind it like mt -f /dev/rmt/0m rew
if the tape is missing from the tape drive
then send a mail saying that the tape is missing and exit.
... (2 Replies)
Discussion started by: xiamin
2 Replies
10. UNIX for Dummies Questions & Answers
If you have multiple hard drives and multiple mounted filesystems, how can you tell which filesystem resides on which disk? (3 Replies)
Discussion started by: jalburger
3 Replies
fsck.gfs2(8) System Manager's Manual fsck.gfs2(8)
NAME
fsck.gfs2 - Offline GFS and GFS2 file system checker
SYNOPSIS
fsck.gfs2 [OPTION]... DEVICE
WARNING
All computers must have the filesystem unmounted before running fsck.gfs2. Failure to unmount from all nodes in a cluster will likely
result in filesystem corruption.
DESCRIPTION
fsck.gfs2 will check that the GFS or GFS2 file system on a device is structurally valid. It should not be run on a mounted file system.
If file system corruption is detected, it will attempt to repair the file system. There is a limit to what fsck.gfs2 can do. If important
file system structures are destroyed, such that the checker cannot determine what the repairs should be, reparations could fail.
GFS2 is a journaled file system, and as such should be able to repair damage to the file system on its own. However, faulty hardware has
the ability to write incomplete blocks to a file system thereby causing corruption that GFS2 cannot fix. The first step to ensuring a
healthy file system is the selection of reliable hardware (i.e. storage systems that will write complete blocks - even in the event of
power failure).
Note: Most file system checkers will not check the file system if it is "clean" (i.e. unmounted since the last use). The fsck.gfs program
behaves differently because the storage may be shared among several nodes in a cluster, and therefore problems may have been introduced on
a different computer. Therefore, fsck.gfs2 will always check the file system unless the -p (preen) option is used, in which case it fol-
lows special rules (see below).
OPTIONS
-a Same as the -p (preen) option.
-f Force checking even if the file system seems clean.
-h Help.
This prints out the proper command line usage syntax.
-q Quiet.
-n No to all questions.
By specifying this option, fsck.gfs2 will only show the changes that would be made, but not make any changes to the filesystem.
-p Preen (same as -a: automatically repair the file system if it is dirty, and safe to do so, otherwise exit.)
Note: If the file system has locking protocol lock_nolock, the file system is considered a non-shared storage device and the fsck is
deemed safe. However, fsck.gfs2 does not know whether it was called automatically from the init process, due to options in the
/etc/fstab file. Therefore, if the locking protocol is lock_dlm and -a or -p was specified, fsck.gfs2 cannot determine whether the
disk is mounted by other nodes in the cluster. Therefore, the fsck is deemed to be unsafe and a warning is given if any damage or
dirty journals are found. In that case, the file system should be unmounted from all nodes in the cluster and fsck.gfs2 should be
run manually without the -a or -p options.
-V Version.
Print out the program version information.
-v Verbose operation.
Print more information while running.
-y Yes to all questions.
By specifying this option, fsck.gfs2 will not prompt before making changes.
fsck.gfs2(8)