a little bit confused about mounting...

hello friends,

i am new in this management area so please help me out..

Code:

# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sdb2        97G  992M   91G   2% /
tmpfs            16G     0   16G   0% /dev/shm
/dev/sdb1       194M   34M  150M  19% /boot


# fdisk -l

Disk /dev/sda: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x1765279b

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1               1      243201  1953512001   8e  Linux LVM
Partition 1 does not start on physical sector boundary.

Disk /dev/sdb: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00022bf6

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   *           1          26      204800   83  Linux
Partition 1 does not end on cylinder boundary.
/dev/sdb2              26       12774   102400000   83  Linux
/dev/sdb3           12774       14304    12288000   82  Linux swap / Solaris
/dev/sdb4           14304      243202  1838620760    5  Extended
/dev/sdb5           14304      243202  1838619648   8e  Linux LVM

Disk /dev/mapper/VolGroup00-lvm00: 3298.5 GB, 3298534883328 bytes
255 heads, 63 sectors/track, 401024 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000


]# lvdisplay
  --- Logical volume ---
  LV Path                /dev/VolGroup00/lvm00
  LV Name                lvm00
  VG Name                VolGroup00
  LV UUID                Oc5dWQ-Talq-jtzB-QD7j-voXe-TBnM-ohcvp0
  LV Write Access        read/write
  LV Creation host, time localhost.localdomain, 2014-09-08 02:35:27 -0500
  LV Status              available
  # open                 0
  LV Size                3.00 TiB
  Current LE             98304
  Segments               2
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:0

now my question is:-

i have lvm00 group (3TB), now where i mount it so that i can extend it in future without downtime.

 

i have done mounting of lvm by

mount /dev/VolGroup00/lvm00 /home

will i have to add it in /etc/fstab for mounting ? /dev/VolGroup00/lvm00 /home ext4 default 0 0