On 30/11/12 21:02, Ed Greshko wrote:
Well.... First of all /nfs4exports doesn't take up any space. They are bind mounts which is analogous to symbolic links. I'll illustrate using my nfs server.
My problem is that saving to /mnt/nfs4exports/home stores the data
in the 50G root space. I did not realize that was happening until
writing ground to a halt.
[egreshko@misty ~]$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/icy3-root 16G 11G 4.3G 71% /
/dev/sda1 388M 47M 321M 13% /boot
/dev/mapper/icy5-opt 9.7G 5.6G 3.6G 62% /opt
/dev/mapper/icy5-syntegra 77G 41G 33G 55% /syntegra
/dev/mapper/icy3-VMware 308G 231G 62G 79% /opt/VMware
/dev/mapper/icy5-home 581G 323G 229G 59% /home
My system:
[root@box8 bobg]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_box8-lv_root
50G 49G 0 100% /
tmpfs 1.9G 112K 1.9G 1% /dev/shm
/dev/sda1 485M 72M 388M 16% /boot
/dev/mapper/vg_box8-lv_home
862G 520M 818G 1% /home
[egreshko@misty ~]$ exportfs -v
/nfs4exports/syntegra
192.168.0.0/24(rw,wdelay,nohide,insecure,root_squash,no_subtree_check)
/nfs4exports/myhome
192.168.0.0/24(rw,wdelay,nohide,insecure,root_squash,no_subtree_check)
/nfs4exports 192.168.0.0/24(ro,wdelay,insecure,root_squash,no_subtree_check,fsid=0)
My NFS looks like this:
[root@box8 bobg]# exportfs -v
/nfsexports
192.168.1.0/24(rw,wdelay,insecure,no_root_squash,no_subtree_check,fsid=0)
/nfsexports/data
192.168.1.0/24(rw,wdelay,insecure,no_root_squash,no_subtree_check)
/nfsexports/home
192.168.1.0/24(rw,wdelay,insecure,no_root_squash,no_subtree_check)
And my /etc/fstab contains the following....
/syntegra /nfs4exports/syntegra none rw,bind 0 0
/home/egreshko /nfs4exports/myhome none rw,bind 0 0
My fstab:
[bobg@box7 ~]$ cat /etc/fstab
#
# /etc/fstab
# Created by anaconda on Tue Aug 7 08:37:16 2012
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for
more info
#
UUID=4ce86523-2d45-4174-85e9-fd298e4516c8 / ext4 defaults 1 1
UUID=1a9d0937-2247-4cbc-b27d-4775c7453dba /boot ext4
defaults 1 2
UUID=96a666e2-73ac-4f5f-98bc-4a6a9383491f /home ext4
defaults 1 2
UUID=9cb5a7e0-c752-4563-b7f5-663980e090e3 swap swap
defaults 0 0
192.168.1.8:/nfs4exports/ /mnt/BOX8 nfs4 rw 0 0
192.168.1.8:/nfs4exports/home/ /mnt/HOME1 nfs4 rw,bind 0 0
192.168.1.8:/nfs4exports/data/ /mnt/DATA1 nfs4 rw,bind 0 0
192.168.1.48:/SRVR1 /mnt/BOX48 nfs4
defaults,rw,user 0 0
So, you can see that the /syntegra partition uses 41GB and /home uses 323GB. None of that space is reflected on the / partition which has only 16GB allocated and 11GB used. If you combine that with /opt only 17GB is being used by the OS.
On the other hand, you have allocated 50GB to / and have used 49GB while /home is way under-utilized.
I suspect you have non-OS data on the / partition which can be moved to /home.
I would first start out by identifying what directory structure on / is using so much space. For example, you may have a /data directory that you've added which could be moved to /home.
Yes, I can move the files but I have to get the tree set up
correctly. I will wait a while until I am fully functional before
attempting to muddle through that.
Tnx,
Bob
--
http://www.qrz.com/db/W2BOD
box7
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