Re: Disk Space Utilization

[Steven Haigh]

This is probably one of the best reasons to use LVM.

Do some research on LVM and the benefits you can get from using it - 
specifically the ability to easily resize 'partitions' (volumes in LVM 
talk) and easily manage space.

My system has a 2Tb RAID6 that has approx 10 different volumes for 
different Xen DomUs and it is a piece of cake to add/remove/resize 
volumes on the fly.

I've found messing with partitions directly on a disk can be quite 
troublesome - especially if you need to modify things later...

--
Steven Haigh

Email: net...@crc.id.au
Web: http://www.crc.id.au
Phone: (03) 9001 6090 - 0412 935 897
Fax: (03) 8338 0299

On 3/06/2011 10:16 PM, James Holland wrote:
I'm quite lazy and use Gparted to do this stuff. You can install it by
doing yum install gparted. You can then see your disks and partitions
and create and label /home on your free 4TB partition. Then edit
/etc/fstab. Let us know if you need further help!

On 03/06/11 12:40, Sunil M. Dogra wrote:


Hi James Holland,
Thank you so much for email
Could you please tell me how I will see that 4TB is free.
As I have 12x1TB disk mounted as a single disk. Out of 12TB I have used
8TB as /export,

Thank you
With Best Regards
sunil



On Fri, Jun 3, 2011 at 4:20 PM, James Holland <holland.ja...@yahoo.co.uk
<mailto:holland.ja...@yahoo.co.uk>> wrote:
So, just mount your 4TB on /home. Stick it in the fstab as LABEL=/home
/home ext3 defaults 1 2









On 03/06/11 08:39, vivek chalotra wrote:

Oh u have done automatic disk partitioning...u have not created
seperate mount point for users.

Vivek Chalotra
GRID Project Associate,
High Energy Physics Group,
Department of Physics & Electronics,
University of Jammu,
Jammu 180006,
INDIA.


On Fri, Jun 3, 2011 at 12:49 PM, Sunil M. Dogra
<smdo...@gmail.com <mailto:smdo...@gmail.com>
<mailto:smdo...@gmail.com <mailto:smdo...@gmail.com>>> wrote:


Hi
Following is my /etc/fstab and donot see the /home. now how
will I
manage quota for users


LABEL=/ / ext3
defaults 1 1
LABEL=/export /export ext3
defaults 1 2
LABEL=/opt /opt ext3
defaults 1 2

LABEL=/boot /boot ext3
defaults 1 2
tmpfs /dev/shm tmpfs
defaults 0 0
devpts /dev/pts devpts
gid=5,mode=620 0 0
sysfs /sys sysfs
defaults 0 0
proc /proc proc
defaults 0 0
LABEL=SW-cciss/c0d0p2 swap swap
defaults 0 0




Regards
sunil





On Fri, Jun 3, 2011 at 12:42 PM, vivek chalotra
<vivekat...@gmail.com <mailto:vivekat...@gmail.com>
<mailto:vivekat...@gmail.com <mailto:vivekat...@gmail.com>>> wrote:


Dear Sunil Sir,

Here are answers to your questions:-

1. DO an entry in /etc/fsab for /home like the
following, but
make sure where it is actually mounted:-
# cat /etc/fstab

LABEL=//ext3defaults1 1

/dev/VolGroup00/LogVol00 /homeext3defaults,usrquota1 2

LABEL=/home/homeext3defaults1 2

LABEL=/boot/bootext3defaults1 2

tmpfs/dev/shmtmpfsdefaults0 0

devpts/dev/ptsdevptsgid=5,mode=6200 0

sysfs/syssysfsdefaults0 0

proc/procprocdefaults0 0

LABEL=SWAP-sda5swapswapdefaults0


# mount –o remount /home

# quotacheck –a /home (It will create a database file
aquota.user at /home)

# quotaon /home (means we have applied quota on /home)

# edquota –u username (to apply quota on a particular user).

# edquota sunil

File Systemblockssofthardinodessofthard

/dev/mapper/VolGroup00-LogVol00721000000001000000001800

# edquota –t(To apply grace period)

Filesystemblock grace periodinode grace period

/dev/mapper/VolGroup00-LogVol007 days7 days



2. Mount the 4TB free space in some mount point and then
create
ext3 file system in it using fdisk or
any other disk management tool.

Regards
Vivek Chalotra
GRID Project Associate,
High Energy Physics Group,
Department of Physics & Electronics,
University of Jammu,
Jammu 180006,
INDIA.



On Fri, Jun 3, 2011 at 10:45 AM, Sunil M. Dogra
<smdo...@gmail.com <mailto:smdo...@gmail.com>
<mailto:smdo...@gmail.com <mailto:smdo...@gmail.com>>> wrote:

Hi,
Two Questions:

1. I would like to give specific disk space to users
but I
don't have /home in /etc/fstab. I will appreciate if
some
one will suggest me how to do disk quota management.

2. During SL5.5 installation I used 8TB disk space
and kept
the 4TB disk space free, Now I want to use this 4TB as
scratch, how will I do that.



Thank you
With Best Regards
sunil