Linux挂载大硬盘（大于2T）
1.使用parted将硬盘转换为GPT分区
[root@localhost ~]# parted /dev/sdb GNU Parted 3.1 Using /dev/sdb Welcome to GNU Parted! Type 'help' to view a list of commands. (parted) mklabel gpt (parted) q Information: You may need to update /etc/fstab.
2.使用fdisk创建分区
[root@localhost ~]# fdisk /dev/sdb WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion. Welcome to fdisk (util-linux 2.23.2). Changes will remain in memory only, until you decide to write them. Be careful before using the write command. Command (m for help): n Partition number (1-128, default 1): 1 First sector (34-11252048526, default 2048): Last sector, +sectors or +size{K,M,G,T,P} (2048-11252048526, default 11252048526): 6442450944 --3T Created partition 1 Command (m for help): w The partition table has been altered! Calling ioctl() to re-read partition table. Syncing disks.
再加一个分区
[root@localhost ~]# fdisk /dev/sdb WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion. Welcome to fdisk (util-linux 2.23.2). Changes will remain in memory only, until you decide to write them. Be careful before using the write command. Command (m for help): p Disk /dev/sdb: 5761.0 GB, 5761048862720 bytes, 11252048560 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 262144 bytes / 786432 bytes Disk label type: gpt Disk identifier: 38624775-A3D8-46CE-9C33-7694A6BAAE62 # Start End Size Type Name 1 2048 6442450944 3T Linux filesyste Command (m for help): n Partition number (2-128, default 2): 2 First sector (34-11252048526, default 6442452992): Last sector, +sectors or +size{K,M,G,T,P} (6442452992-11252048526, default 11252048526): Created partition 2 Command (m for help): w The partition table has been altered! Calling ioctl() to re-read partition table. Syncing disks.
3.查看分区
[root@localhost ~]# fdisk /dev/sdb WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion. Welcome to fdisk (util-linux 2.23.2). Changes will remain in memory only, until you decide to write them. Be careful before using the write command. Command (m for help): p Disk /dev/sdb: 5761.0 GB, 5761048862720 bytes, 11252048560 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 262144 bytes / 786432 bytes Disk label type: gpt Disk identifier: 38624775-A3D8-46CE-9C33-7694A6BAAE62 # Start End Size Type Name 1 2048 6442450944 3T Linux filesyste 2 6442452992 11252048526 2.2T Linux filesyste Command (m for help): w The partition table has been altered! Calling ioctl() to re-read partition table. Syncing disks.
4.格式化分区
[root@localhost /]# mkfs.ext4 /dev/sdb1 mke2fs 1.42.9 (28-Dec-2013) Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) Stride=64 blocks, Stripe width=192 blocks 201326592 inodes, 805306112 blocks 40265305 blocks (5.00%) reserved for the super user First data block=0 Maximum filesystem blocks=2952790016 24576 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, 512000000, 550731776, 644972544 Allocating group tables: done Writing inode tables: done Creating journal (32768 blocks): done Writing superblocks and filesystem accounting information: done [root@localhost /]# mkfs.ext4 /dev/sdb2 mke2fs 1.42.9 (28-Dec-2013) Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) Stride=64 blocks, Stripe width=192 blocks 150306816 inodes, 601199441 blocks 30059972 blocks (5.00%) reserved for the super user First data block=0 Maximum filesystem blocks=2749366272 18348 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, 512000000, 550731776 Allocating group tables: done Writing inode tables: done Creating journal (32768 blocks): done Writing superblocks and filesystem accounting information: done
5.创建目录并挂载
[root@localhost /]# mkdir /oradata2 [root@localhost /]# mount /dev/sdb1 /oradata2/ [root@localhost /]# df -h Filesystem Size Used Avail Use% Mounted on devtmpfs 63G 0 63G 0% /dev tmpfs 63G 0 63G 0% /dev/shm tmpfs 63G 9.8M 63G 1% /run tmpfs 63G 0 63G 0% /sys/fs/cgroup /dev/mapper/ol-root 1.2T 1.3G 1.2T 1% / /dev/sda2 494M 167M 327M 34% /boot /dev/sda1 500M 9.7M 490M 2% /boot/efi /dev/mapper/ol-u01 100G 33M 100G 1% /u01 /dev/mapper/ol-oradata1 4.0T 34M 4.0T 1% /oradata1 tmpfs 13G 0 13G 0% /run/user/0 /dev/sdb1 3.0T 89M 2.9T 1% /oradata2 [root@localhost /]# mkdir /backup [root@localhost /]# mount /dev/sdb2 /backup/ [root@localhost /]# df -h Filesystem Size Used Avail Use% Mounted on devtmpfs 63G 0 63G 0% /dev tmpfs 63G 0 63G 0% /dev/shm tmpfs 63G 9.8M 63G 1% /run tmpfs 63G 0 63G 0% /sys/fs/cgroup /dev/mapper/ol-root 1.2T 1.3G 1.2T 1% / /dev/sda2 494M 167M 327M 34% /boot /dev/sda1 500M 9.7M 490M 2% /boot/efi /dev/mapper/ol-u01 100G 33M 100G 1% /u01 /dev/mapper/ol-oradata1 4.0T 34M 4.0T 1% /oradata1 tmpfs 13G 0 13G 0% /run/user/0 /dev/sdb1 3.0T 89M 2.9T 1% /oradata2 /dev/sdb2 2.3T 85M 2.1T 1% /backup
添加自动挂载磁盘
[root@localhost /]# vi /etc/fstab /dev/sdb1 /oradata2 ext4 defaults 0 0 /dev/sdb2 /backup ext4 defaults 0 0
