一、服务器环境配置：
1、检查磁盘分区：
近期项目有个服务从虚拟机迁移到物理机，服务磁盘用户自己做了raid为3.8TB 2块磁盘配置 Raid1然后又3.8TB 6块磁盘配置了Raid5，安装操作系统使用的sda 3.8TB空间的raid1已分区。3.8TB*6的磁盘sdb共20TB的空间需要分区，并挂载给系统做存储使用。步骤如下:
1.1查询确认sdb状态：
# fdisk -l WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted. Disk /dev/sda: 4000.2 GB, 4000225165312 bytes 255 heads, 63 sectors/track, 486333 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System /dev/sda1 1 267350 2147483647+ ee GPT Partition 1 does not start on physical sector boundary. WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted Disk /dev/sdb: 20001.1 GB, 20001125826560 bytes 255 heads, 63 sectors/track, 2431665 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System /dev/sdb1 1 267350 2147483647+ ee GPT Partition 1 does not start on physical sector boundary. Disk /dev/mapper/VolGroup-LogVol00: 2531.7 GB, 2531690283008 bytes 255 heads, 63 sectors/track, 307793 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x00000000 Disk /dev/mapper/VolGroup-LogVol01: 1468.0 GB, 1468006400000 bytes 255 heads, 63 sectors/track, 178474 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x00000000
1.2、sdb磁盘分区：
# parted /dev/sdb GNU Parted 2.1 使用 /dev/sdb Welcome to GNU Parted! Type 'help' to view a list of commands. (parted) print #查看当前分区 Model: LSI MRSASRoMB-8i (scsi) Disk /dev/sdb: 20.0TB Sector size (logical/physical): 512B/4096B Partition Table: gpt Number Start End Size File system Name 标志 (parted) mkpart primary 0% 100% #将磁盘所有空间分为一个区 (parted) print #再次查询磁盘分区 Model: LSI MRSASRoMB-8i (scsi) Disk /dev/sdb: 20.0TB Sector size (logical/physical): 512B/4096B Partition Table: gpt Number Start End Size File system Name 标志 1 1049kB 20.0TB 20.0TB primary (parted) quit 信息: You may need to update /etc/fstab.
1.3、正确格式化的方法：
a、使用mkfs命令（如下）格式化是无法格式化的，检查为mkfs.ext4无法格式化16TB以上的分区，原因为Centos6.10 e2fsprogs版本为1.41.12，需升级为1.42版本
mkfs.ext4 /dev/sdb1 #无法如此格式化
b、升级e2fsprogs版本：
tar zvxf e2fsprogs-1.42.10.tar.gz cd e2fsprogs-1.42.10 mkdir build cd build/ ../configure make make install ##如有“忽略”错误正常。
c、查询需要分区的扇区大小
# df -h Disk /dev/sdb: 20001.1 GB, 20001125826560 bytes 255 heads, 63 sectors/track, 2431665 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System /dev/sdb1 1 267350 2147483647+ ee GPT Partition 1 does not start on physical sector boundary.
d、对磁盘重新格式化命令如下：
# mke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 267350 /dev/sdb1 mke2fs 1.42.10 (18-May-2014) Warning: the fs_type huge is not defined in mke2fs.conf Creating filesystem with 4883086848 4k blocks and 76298240 inodes Filesystem UUID: 74dabc93-177b-4531-aab9-e55a1e2efe9d 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, 2560000000, 3855122432 Allocating group tables: 完成 正在写入inode表: 完成 Creating journal (32768 blocks): 完成 Writing superblocks and filesystem accounting information: 完成 This filesystem will be automatically checked every 34 mounts or ##提示180天问题 180 days, whichever comes first. Use tune2fs -c or -i to override.
e、解决180天问题
# tune2fs -i 3650d /dev/sdb1 tune2fs 1.42.10 (18-May-2014) Setting interval between checks to 315360000 seconds #确认时间正确 # tune2fs -l /dev/sdb1 tune2fs 1.42.10 (18-May-2014) Filesystem volume name: <none> Last mounted on: <not available> Filesystem UUID: 74dabc93-177b-4531-aab9-e55a1e2efe9d Filesystem magic number: 0xEF53 Filesystem revision #: 1 (dynamic) Filesystem features: has_journal ext_attr dir_index filetype extent 64bit flex_bg sparse_super huge_file uninit_bg dir_nlink extra_isize Filesystem flags: signed_directory_hash Default mount options: user_xattr acl Filesystem state: clean Errors behavior: Continue Filesystem OS type: Linux Inode count: 76298240 Block count: 4883086848 Reserved block count: 244154342 Free blocks: 4877929145 Free inodes: 76298229 First block: 0 Block size: 4096 Fragment size: 4096 Group descriptor size: 64 Blocks per group: 32768 Fragments per group: 32768 Inodes per group: 512 Inode blocks per group: 32 Flex block group size: 16 Filesystem created: Fri Jun 5 17:08:54 2020 Last mount time: Fri Jun 5 17:14:34 2020 Last write time: Fri Jun 5 17:15:58 2020 Mount count: 1 Maximum mount count: 34 Last checked: Fri Jun 5 17:08:54 2020 ##开始时间 Check interval: 315360000 (121 months, 2 weeks, 6 days) Next check after: Mon Jun 3 17:08:54 2030 ##最终时间 Lifetime writes: 349 MB Reserved blocks uid: 0 (user root) Reserved blocks gid: 0 (group root) First inode: 11 Inode size: 256 Required extra isize: 28 Desired extra isize: 28 Journal inode: 8 Default directory hash: half_md4 Directory Hash Seed: 0f4e7ee0-4aec-41cf-b81a-7d5a4ed045c4 Journal backup: inode blocks
1.4、挂载磁盘：
a、挂载磁盘
# cd /
# mkdir data
# mount /dev/sdb1 /data
# df -Th
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/VolGroup-LogVol00
ext4 2.3T 12G 2.2T 1% /
tmpfs tmpfs 32G 144K 32G 1% /dev/shm
/dev/sda1 ext4 477M 41M 412M 9% /boot
/dev/mapper/VolGroup-LogVol01
ext4 1.4T 70M 1.3T 1% /home
/dev/sdb1 ext4 19T 20K 18T 1% /data
b、设置开机挂载
在文件尾部增加一行如下内容，需注意实际的文件路径。
vim /etc/fstab /dev/sdb1 /data ext4 defaults 0 0
到此这篇关于centos6超20TB磁盘的分区格式化的示例代码的文章就介绍到这了,更多相关centos6磁盘分区格式化内容请搜索以前的文章或继续浏览下面的相关文章希望大家以后多多支持！
