07-07-2011
Not sure... but do realize that NFS is NOT a cluster aware filesystem. That is, it's not a shared filesystem... it's a network file system (NFS). The view of each client is not guaranteed. I guess you could say that NFS tries to keep from flying apart but doesn't try to keep every client's view integral. If you need true live shared storage, look into a cluster aware filesystem (e.g. ocfs2, GFS2, Veritas, etc.)
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I would like to know if there is a command or set of commands that I can run to verify that there are no 'extraneous' nfs mounted filesystems on our server. I didn't see anything in doing a search on NFS.
We think that we may have some filesystems that are still nfs mounted when the link should... (3 Replies)
Discussion started by: giannicello
3 Replies
2. UNIX for Advanced & Expert Users
In my Solaris 10 based server, I have noticed the following mounts when a use DF -K
/dev/dsk/c0t0d0s0 5062414 3213876 1797914 65% /
/ 5062414 3213876 1797914 65% /net/se420
I understand the first mount because it appears in my vfstab file and is the mount of root that I would expect.... (1 Reply)
Discussion started by: jimthompson
1 Replies
3. Shell Programming and Scripting
Hello,
I have a backup script that backs up my system to a nfs mounted file system. The mount point on my local system is /backup.
I want my script to check whether the nfs file system is mounted on /backup before actually backing anything up. Even if the nfs file system was NOT mounted,... (2 Replies)
Discussion started by: xadamz23
2 Replies
4. Solaris
Hello all,
We're using JET to build our systems.. I'm in the process of needing to build a centrally located JET box with access to all our networks rather that 2 or 3 dotted around. Part of the means I need to locate the boot & OS images on an NFS mount (via NETAPP filer)..
However in the... (1 Reply)
Discussion started by: itsupplies
1 Replies
5. 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
6. Solaris
I have two Unix (Solaris) hosts that are both attached to our SAN. They are both presented with the same luns.
What I want to do is have the same UFS filesystem mounted on both hosts at the same time. What I am trying to accomplish is creating a zone that will reside on both hosts but only... (2 Replies)
Discussion started by: beaker457
2 Replies
7. Solaris
If I am not a system admin. How can I tell where a particular mounted file is mounted from. (12 Replies)
Discussion started by: Harleyrci
12 Replies
8. Shell Programming and Scripting
Anyone know the best way to check and see if a NAS filesystem is mounted on a linux box. I have no idea where to start :wall:. (2 Replies)
Discussion started by: d3mon_spawn
2 Replies
9. Solaris
hi,
i might not be posting my question in the right place because i don't know where to post questions
my question is like this
i created a partition named 'var' in the SOLARIS os .,and then i knowingly mounted it on /var ..now after doing this am not able to login to my... (4 Replies)
Discussion started by: shekhar_4_u
4 Replies
10. AIX
Hello Gurus,
Can you please suggest what is the command of all the filesystems which are mounted at the server.
Thanks-
Pokhraj Das (1 Reply)
Discussion started by: pokhraj_d
1 Replies
LEARN ABOUT DEBIAN
gfs2_grow
gfs2_grow(8) System Manager's Manual gfs2_grow(8)
NAME
gfs2_grow - Expand a GFS2 filesystem
SYNOPSIS
gfs2_grow [OPTION]... <DEVICE|MOUNTPOINT>...
DESCRIPTION
gfs2_grow is used to expand a GFS2 filesystem after the device upon which the filesystem resides has also been expanded. By running
gfs2_grow on a GFS2 filesystem, you are requesting that any spare space between the current end of the filesystem and the end of the device
is filled with a newly initialized GFS2 filesystem extension. When this operation is complete, the resource group index for the filesystem
is updated so that all nodes in the cluster can use the extra storage space that has been added.
You may only run gfs2_grow on a mounted filesystem; expansion of unmounted filesystems is not supported. You only need to run gfs2_grow on
one node in the cluster. All the other nodes will see the expansion has occurred and automatically start to use the newly available space.
You must be superuser to execute gfs2_grow. The gfs2_grow tool tries to prevent you from corrupting your filesystem by checking as many of
the likely problems as it can. When expanding a filesystem, only the last step of updating the resource index affects the currently
mounted filesystem and so failure part way through the expansion process should leave your filesystem in its original unexpanded state.
You can run gfs2_grow with the -T flag to get a display of the current state of a mounted GFS2 filesystem.
The gfs2_grow tool uses the resource group (RG) size that was originally calculated when mkfs.gfs2 was done. This allows tools like
fsck.gfs2 to better ensure the integrity of the file system. Since the new free space often does not lie on even boundaries based on that
RG size, there may be some unused space on the device after gfs2_grow is run.
OPTIONS
-D Print out debugging information about the filesystem layout.
-h Prints out a short usage message and exits.
-q Be quiet. Don't print anything.
-T Test. Do all calculations, but do not write any data to the disk and do not expand the filesystem. This is used to discover what the
tool would have done were it run without this flag.
-V Version. Print out version information, then exit.
BUGS
There is no way to shrink a GFS2 filesystem.
SEE ALSO
mkfs.gfs2(8) gfs2_jadd(8)
gfs2_grow(8)