Blog do Danniel: Dimensionando partição superior a 2TB

Bom, tive um problema com discos de 2TB em meu servidor. Eles estavam com RAID, bom e com o fdisk ele informava que tava um erro

Veja
# fdisk -l /dev/sda

WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted.

WARNING: The size of this disk is 9.3 TB (9345848836096 bytes).
DOS partition table format can not be used on drives for volumes
larger than 2.2 TB (2199023255040 bytes). Use parted(1) and GUID
partition table format (GPT).

Disk /dev/sda: 9345.8 GB, 9345848836096 bytes
255 heads, 63 sectors/track, 1136234 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Bom de Cara o fdisk já me informa pra usar o GNU Parted pois o mesmo não tem suporte a GPT. e ai o que eu fiz foi:

#man parted

e ai as coisas ficaram claras e fiz exatamente assim

# parted /dev/sda

GNU Parted 1.8.1
Using /dev/sda
Welcome to GNU Parted! Type 'help' to view a list of commands.

(parted) mklabel gpt

Vamos definir a unidade padrão para TB

   (parted) unit TB

Vamos criar a partição com os mais de 2TB

         (parted) mkpart primary 0.00TB 9.35TB

(parted) print
Disk /dev/sda: 9.35TB
Sector size (logical/physical): 512B/512B
Partition Table: gpt

Number  Start End      Size & nbsp ;    File system  Name     Flags
1             0.00TB  9.35TB  9.35TB        ;    primary


Agora sim

        (parted) quit
Information: Don't forget to update /etc/fstab, if necessary.

Ok, vamos usar o mkfs para formatar:
# mkfs.ext3 /dev/sda1

mke2fs 1.39 (29-May-2006)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
1140850688 inodes, 2281701367 blocks
114085068 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
69632 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, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
102400000, 214990848, 512000000, 550731776, 644972544, 1934917632

Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information:
This filesystem will be automatically checked every 27 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.

Verificando como ficou:

# fdisk -l /dev/sda

WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted.

WARNING: The size of this disk is 9.3 TB (9345848836096 bytes).
DOS partition table format can not be used on drives for volumes
larger than 2.2 TB (2199023255040 bytes). Use parted(1) and GUID
partition table format (GPT).

Disk /dev/sda: 9345.8 GB, 9345848836096 bytes
255 heads, 63 sectors/track, 1136234 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sda1 1 267350 2147483647+ ee EFI GPT