Procedimiento para agregar un nuevo disco (Linux)

attach_disk.txt

# lsblk

NAME            MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sda               8:0    0   20G  0 disk 
`-sda1            8:1    0   20G  0 part /docs
vda             252:0    0   40G  0 disk 
|-vda1          252:1    0    1G  0 part /boot
`-vda2          252:2    0   39G  0 part 
  |-centos-root 253:0    0 35.1G  0 lvm  /
  `-centos-swap 253:1    0  3.9G  0 lvm  [SWAP]

# fdisk -l

Disk /dev/vda: 42.9 GB, 42949672960 bytes, 83886080 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 label type: dos
Disk identifier: 0x0002b169

   Device Boot      Start         End      Blocks   Id  System
/dev/vda1   *        2048     2099199     1048576   83  Linux
/dev/vda2         2099200    83886079    40893440   8e  Linux LVM

Disk /dev/sda: 21.5 GB, 21474836480 bytes, 41943040 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 4210688 bytes / 1048576 bytes
Disk label type: dos
Disk identifier: 0x7b7f09ab

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1            4096    41943039    20969472   83  Linux
Partition 1 does not start on physical sector boundary.

Disk /dev/mapper/centos-root: 37.7 GB, 37706792960 bytes, 73646080 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 /dev/mapper/centos-swap: 4160 MB, 4160749568 bytes, 8126464 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

# fdisk /dev/sdXX
# reboot 

# sudo resize2fs /dev/sdXX 
# mkfs.ext4 /dev/sdXX
# mkdir folder 
# mount -t ext4 /dev/sdXX /folder/

df -h

vim /etc/fstab

#
# /etc/fstab
# Created by anaconda on Mon Jan 29 19:11:40 2018
#
# 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
#
/dev/mapper/centos-root /                       xfs     defaults        0 0
UUID=e22efc00-1ab1-4ddc-946c-0cfb711f9112 /boot                   xfs     defaults        0 0
/dev/mapper/centos-swap swap                    swap    defaults        0 0
/dev/mapper/centos-swap	none	swap	sw,comment=cloudconfig	0	0

/dev/sdXX /folder                       ext4     defaults        0 0

:wq!
reboot