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    centos6超20TB磁盘的分区格式化的示例代码

    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脚本之家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脚本之家!

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