centos7.5 挂载超过2T的大硬盘步骤
文章目录
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-
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- 查看未指派分区名称
- 格式化分区
- 对新磁盘进行分区，由于fdisk仅支持2T以内磁盘分区，但该磁盘大于2T，所以使用parted进行GPT格式分区
- 参数计算，克隆一个新会话获取参数值
- 查看磁盘情况
- 再次格式化磁盘
- 创建挂载的目录（自定义即可)
- 挂载硬盘
- 查看磁盘情况
- 添加开机自启
- 检测是否自动挂载成功
- 命令行全过程
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查看未指派分区名称
格式化分区
对新磁盘进行分区，由于fdisk仅支持2T以内磁盘分区，但该磁盘大于2T，所以使用parted进行GPT格式分区
parted /dev/sdb
参数计算，克隆一个新会话获取参数值
（optimal_io_size + alignment_offset）/ physical_block_size = 最终值；
如果optimal_io_size为0，那么我们最好直接使用起始扇区的默认值2048
查看磁盘情况
fdisk -l
再次格式化磁盘
mkfs.ext4 -F /dev/sdb
创建挂载的目录（自定义即可)
mkdir /data
挂载硬盘
mount /dev/sdb /data
查看磁盘情况
添加开机自启
echo /dev/sdb /data ext4 defaults 1 2 >> /etc/fstab
检测是否自动挂载成功
命令行全过程
[root@5c5sb ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
vda 253:0 0 40G 0 disk
└─vda1 253:1 0 40G 0 part /
vdb 253:16 0 1.5T 0 disk
[root@5c5sb ~]# mkfs -t ext4 /dev/vdb
mke2fs 1.42.9 (28-Dec-2013)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
98304000 inodes, 393216000 blocks
19660800 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=2541748224
12000 block groups
32768 blocks per group, 32768 fragments per group
8192 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
Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
[root@5c5sb ~]# parted /dev/vdb
GNU Parted 3.1
Using /dev/vdb
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) mklabel gpt
Warning: The existing disk label on /dev/vdb will be destroyed and all data on this disk will be lost. Do you want to continue?
Yes/No? yes
(parted) mkpart primary 2048s 100%
(parted) print
Model: Virtio Block Device (virtblk)
Disk /dev/vdb: 1611GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
1 1049kB 1611GB 1611GB primary
(parted) align-check optimal 1
1 aligned
(parted) quit
Information: You may need to update /etc/fstab.
[root@5c5sb ~]# cat /sys/block/vdb/queue/optimal_io_size
0
[root@5c5sb ~]# cat /sys/block/vdb/queue/minimum_io_size
512
[root@5c5sb ~]# cat /sys/block/vdb/alignment_offset
0
[root@5c5sb ~]# cat /sys/block/vdb/queue/physical_block_size
512
[root@5c5sb ~]# 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: 0x000a6c04
Device Boot Start End Blocks Id System
/dev/vda1 * 2048 83886046 41941999+ 83 Linux
WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.
Disk /dev/vdb: 1610.6 GB, 1610612736000 bytes, 3145728000 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: gpt
Disk identifier: 6F176380-7D67-4369-BF59-FFDFCF4D51AF
# Start End Size Type Name
1 2048 3145725951 1.5T Microsoft basic primary
[root@5c5sb ~]# mkfs.ext4 -F /dev/vd
vda vda1 vdb vdb1
[root@5c5sb ~]# mkfs.ext4 -F /dev/vdb
vdb vdb1
[root@5c5sb ~]# mkfs.ext4 -F /dev/vdb
mke2fs 1.42.9 (28-Dec-2013)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
98304000 inodes, 393216000 blocks
19660800 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=2541748224
12000 block groups
32768 blocks per group, 32768 fragments per group
8192 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
Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
[root@5c5sb ~]# lsblk -f
NAME FSTYPE LABEL UUID MOUNTPOINT
vda
└─vda1 ext4 9f64194b-530f-4d17-bef9-d3607ecb5d55 /
vdb ext4 0f681d99-f6a4-4d8b-a159-f0045e033ba0
[root@5c5sb ~]# vi /etc/fstab
[root@5c5sb ~]# cat /etc/fstab
#
# /etc/fstab
# Created by anaconda on Mon Feb 1 01:29:05 2021
#
# 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
#
UUID=9f64194b-530f-4d17-bef9-d3607ecb5d55 / ext4 defaults 1 1
UUID=0f681d99-f6a4-4d8b-a159-f0045e033ba0 /data ext4 defaults 1 1
[root@5c5sb ~]# mkdir /data
[root@5c5sb ~]# mount -a