I know linux basics but not an expert. IT guy left the job here and there is some time before new hire. So sorry if question is very basic.

We have local testing server based on Open SUSE 12.1, which also act as shared drive between dev/mgmt team here and using Samba for that.

Now we are running out of space on samba, even though server's 2*1TB harddisk is nearly 90% free. My question is, what is limiting Samba and how can I increase its limit? We need around at least 500 GB as shared drive but currently its just 25 GB.

I don't need step by step answer, just a link to any helpful article would be sufficient. Probably I'm putting wrong keywords in google so not getting any helpful link.

EDIT: Output of commands in the first comment. All commands were run as root user

df -h (getting error with df -ht)

Filesystem      Size  Used Avail Use% Mounted on
rootfs           30G  5.1G   23G  19% /
devtmpfs        2.0G   36K  2.0G   1% /dev
tmpfs           2.0G  1.1M  2.0G   1% /dev/shm
tmpfs           2.0G  676K  2.0G   1% /run
/dev/sda2        30G  5.1G   23G  19% /
tmpfs           2.0G     0  2.0G   0% /sys/fs/cgroup
tmpfs           2.0G  676K  2.0G   1% /var/run
tmpfs           2.0G     0  2.0G   0% /media
tmpfs           2.0G  676K  2.0G   1% /var/lock
/dev/sda3        36G   31G  3.3G  91% /home

fdisk -l /dev/[hmsv]d*

Disk /dev/sda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders, total 156301488 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x2d4a2d49

Device Boot      Start         End      Blocks   Id  System
/dev/sda1            2048    16771071     8384512   82  Linux swap / Solaris
/dev/sda2   *    16771072    79681535    31455232   83  Linux
/dev/sda3        79681536   156301311    38309888   83  Linux

Disk /dev/sda1: 8585 MB, 8585740288 bytes
255 heads, 63 sectors/track, 1043 cylinders, total 16769024 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/sda1 doesn't contain a valid partition table

Disk /dev/sda2: 32.2 GB, 32210157568 bytes
255 heads, 63 sectors/track, 3915 cylinders, total 62910464 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

     Device Boot      Start         End      Blocks   Id  System

Disk /dev/sda3: 39.2 GB, 39229325312 bytes
255 heads, 63 sectors/track, 4769 cylinders, total 76619776 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/sda3 doesn't contain a valid partition table

vgs

No volume groups found

lvs

No volume groups found

output of vi /etc/samba/smb.conf

# smb.conf is the main Samba configuration file. You find a full commented
# version at /usr/share/doc/packages/samba/examples/smb.conf.SUSE if the
# samba-doc package is installed.
# Date: 2011-11-02
[global]
        workgroup = WORKGROUP
        passdb backend = tdbsam
        printing = cups
        printcap name = cups
        printcap cache time = 750
        cups options = raw
        map to guest = Bad User
        include = /etc/samba/dhcp.conf
        logon path = \\%L\profiles\.msprofile
        logon home = \\%L\%U\.9xprofile
        logon drive = P:
        usershare allow guests = Yes
[homes]
        comment = Home Directories
        valid users = %S, %D%w%S
        browseable = No
        read only = No
        inherit acls = Yes
[profiles]
        comment = Network Profiles Service
        path = %H
        read only = No
        store dos attributes = Yes
        create mask = 0600
        directory mask = 0700
[users]
        comment = All users
        path = /home
        read only = No
        inherit acls = Yes
        veto files = /aquota.user/groups/shares/
[groups]
        comment = All groups
        path = /home/groups
        read only = No
        inherit acls = Yes
[printers]
        comment = All Printers
        path = /var/tmp
        printable = Yes
        create mask = 0600
        browseable = No
[print$]
        comment = Printer Drivers
        path = /var/lib/samba/drivers
        write list = @ntadmin root
        force group = ntadmin
        create mask = 0664
        directory mask = 0775
[allusers]
  comment = All Users
  path = /home/shares/allusers
  valid users = @users
  force group = users
  create mask = 0660
  directory mask = 0771
  writable = yes