Computer Storage

• Local → RAM / HDD / SSD

• DAS (Direct Attached Storage)

  • USB HDD / DVD

• SAN (Storage Area Network)

  • through iSCSI cable or fiber cable
  • PCI SAN cards / HBA cards

• NAS (Network Attached Storage)

  • through network (TCP/IP) Samba, NFS

Disk Partition

• df → disk info

• fdisk → total & partition

• fdisk -l → get info about partition

• fdisk /etc/sdb → mount partition

  • n → new partition
  • w → write

• mkfs.xfs /dev/sdb1

  • create file system

• mkdir /data → create folder to mount partition

• mount /dev/sdb1 /data

  • mount disk

• nano /etc/fstab

  • mount new disk at startup

/dev/sdb1    /data    xfs    defaults    0    0

• unmount /data

  • unmount disk

• mount -a → read fstab and remount disk