Create Linux Partition -- Add New HDD to Linux

[root@Grid-DB ~]# fdisk -l

Disk /dev/xvda: 8589 MB, 8589934592 bytes

255 heads, 63 sectors/track, 1044 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot      Start    End   Blocks   Id System

/dev/xvda1   *       1     16   128488+  83 Linux

/dev/xvda2          17     408  3148740  82 Linux swap / Solaris

/dev/xvda3         409    1044  5108670  83 Linux

Disk /dev/xvdb: 8589 MB, 8589934592 bytes

255 heads, 63 sectors/track, 1044 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

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

7. Create a primary partition on the device identified above.

[root@Grid-DB ~]# fdisk /dev/xvdb

Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel

Building a new DOS disklabel. Changes will remain in memory only,

until you decide to write them. After that, of course, the previous

content won't be recoverable.

Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)

Command (m for help): n

Command action

   e   extended

   p   primary partition (1-4)

p

Partition number (1-4): 1

First cylinder (1-1044, default 1):

Using default value 1

Last cylinder or +size or +sizeM or +sizeK (1-1044, default 1044):

Using default value 1044

Command (m for help): w

The partition table has been altered!

Calling ioctl() to re-read partition table.

Syncing disks.

8. Add a filesystem to the new partition.

[root@Grid-DB ~]# mkfs -t ext3 /dev/xvdb1

mke2fs 1.39 (29-May-2006)

Filesystem label=

OS type: Linux

Block size=4096 (log=2)

Fragment size=4096 (log=2)

1048576 inodes, 2096474 blocks

104823 blocks (5.00%) reserved for the super user

First data block=0

Maximum filesystem blocks=2147483648

64 block groups

32768 blocks per group, 32768 fragments per group

16384 inodes per group

Superblock backups stored on blocks:

        32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632

Writing inode tables: done                           

Creating journal (32768 blocks): done

Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 21 mounts or

180 days, whichever comes first.  Use tune2fs -c or -i to override.

[root@Grid-DB ~]#

Then add the necessary commands to the /etc/fstab file before issuing the mount command to mount the new device as shown below. 

[root@Grid-DB ~]# vi /etc/fstab

LABEL=/                 /                       ext3    defaults        1 1

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=SWAP-xvda2        swap                    swap    defaults        0 0

/dev/xvdb1              /u01                    ext3    defaults        1 1

[root@Grid-DB ~]# mkdir /u01

[root@Grid-DB ~]# mount /u01

[root@Grid-DB ~]# df -h

Filesystem            Size  Used Avail Use% Mounted on

/dev/xvda3            4.8G  2.5G  2.1G  55% /

/dev/xvda1            122M   13M  104M  11% /boot

tmpfs                 1.1G     0  1.1G   0% /dev/shm

/dev/xvdb1            7.9G  147M  7.4G   2% /u01