多个磁盘做软件raid并解决分区aligned对齐问题

2023-12-20 16:02:01

centos 服务器验证创建软件raid10数据盘，该机器缺少raid硬件。只能做软件raid。

/dev/sdd至/dev/sdm共10块8T磁盘，做raid10；

步骤如下：

（第一步）创建raid10
事先不需要对单个磁盘做分区
10个相同数据盘创建raid10命令：mdadm -C -v ?/dev/md10 -a yes -l 10 -n 10 ?/dev/sdd /dev/sde /dev/sdf /dev/sdg /dev/sdh /dev/sdi /dev/sdj /dev/sdk /dev/sdl /dev/sdm

2个相同数据盘创建raid1命令：mdadm -C -v ?/dev/md0 -a yes -l 1 -n 2 ?/dev/sdb /dev/sdc

创建命令参数说明：

选项：-C
专用选项：
-l 级别
-n 设备个数
-a {yes|no} 自动为其创建设备文件
-c 指定数据块大小（chunk）
-x 指定空闲盘（热备磁盘）个数，空闲盘（热备磁盘）能在工作盘损坏后自动顶替
-v, --verbose：显示细节

参考文档：

Linux中mdadm命令管理RAID磁盘阵列的实例总结_PHP教程_IDC笔记

linux软raid mdadm命令详讲_mdadm查看raid信息-CSDN博客

mdadm ?-D???/dev/md10? 查看状态

【第二步】解决分区格式化的对齐问题："The resulting partition is not properly aligned for best performance."

[root@10.74.67.29~]# cat /sys/block/md10/queue/optimal_io_size?
2621440
[root@10.74.67.29~]# cat /sys/block/md10/queue/minimum_io_size?
524288
[root@10.74.67.29~]# cat /sys/block/md10/alignment_offset?
0
[root@10.74.67.29~]# cat /sys/block/md10/queue/physical_block_size?
4096

获取正确的偏移扇区数是将 optimal_io_size 和 alignment_offset 相加然后除以 physical_block_size，这里算出来是640=(optimal_io_size?+alignment_offset )/physical_block_size ;

parted??/dev/md10?

(parted) h
(parted) mklabel gpt
(parted) mkpart primary xfs 640 100% ? ?【这是关键步骤】

【第三步】正常的分区格式化大容量磁盘, 添加开机自启动

mkfs.xfs /dev/md10p1? ?【格式化成默认的xfs文件系统】

blkid /dev/md10p1

cat /etc/fstab && vi /etc/fstab

以下是详细命令

【第一步】创建raid10
不需要对单个磁盘做分区
[root@10.74.67.29~]# mdadm -C -v ?/dev/md10 -a yes -l 10 -n 10 ?/dev/sdd /dev/sde /dev/sdf /dev/sdg /dev/sdh /dev/sdi /dev/sdj /dev/sdk /dev/sdl /dev/sdm
mdadm: layout defaults to n2
mdadm: layout defaults to n2
mdadm: chunk size defaults to 512K
mdadm: partition table exists on /dev/sdd
mdadm: partition table exists on /dev/sdd but will be lost or
? ? ? ?meaningless after creating array
mdadm: partition table exists on /dev/sde
mdadm: partition table exists on /dev/sde but will be lost or
? ? ? ?meaningless after creating array
mdadm: partition table exists on /dev/sdf
mdadm: partition table exists on /dev/sdf but will be lost or
? ? ? ?meaningless after creating array
mdadm: partition table exists on /dev/sdg
mdadm: partition table exists on /dev/sdg but will be lost or
? ? ? ?meaningless after creating array
mdadm: partition table exists on /dev/sdh
mdadm: partition table exists on /dev/sdh but will be lost or
? ? ? ?meaningless after creating array
mdadm: partition table exists on /dev/sdi
mdadm: partition table exists on /dev/sdi but will be lost or
? ? ? ?meaningless after creating array
mdadm: partition table exists on /dev/sdj
mdadm: partition table exists on /dev/sdj but will be lost or
? ? ? ?meaningless after creating array
mdadm: partition table exists on /dev/sdk
mdadm: partition table exists on /dev/sdk but will be lost or
? ? ? ?meaningless after creating array
mdadm: partition table exists on /dev/sdl
mdadm: partition table exists on /dev/sdl but will be lost or
? ? ? ?meaningless after creating array
mdadm: partition table exists on /dev/sdm
mdadm: partition table exists on /dev/sdm but will be lost or
? ? ? ?meaningless after creating array
mdadm: size set to 7813894144K
mdadm: automatically enabling write-intent bitmap on large array
Continue creating array? yes
mdadm: Defaulting to version 1.2 metadata
mdadm: array /dev/md10 started.
[root@10.74.67.29~]# mdadm ?-D /dev/md10
/dev/md10:
? ? ? ? ? ?Version : 1.2
? ? ?Creation Time : Wed Dec 20 11:38:54 2023
? ? ? ? Raid Level : raid10
? ? ? ? Array Size : 39069470720 (37259.55 GiB 40007.14 GB)
? ? ?Used Dev Size : 7813894144 (7451.91 GiB 8001.43 GB)
? ? ? Raid Devices : 10
? ? ?Total Devices : 10
? ? ? ?Persistence : Superblock is persistent

? ? ?Intent Bitmap : Internal

? ? ? ?Update Time : Wed Dec 20 11:39:09 2023
? ? ? ? ? ? ?State : clean, resyncing?
? ? Active Devices : 10
? ?Working Devices : 10
? ? Failed Devices : 0
? ? ?Spare Devices : 0

? ? ? ? ? ? Layout : near=2
? ? ? ? Chunk Size : 512K

Consistency Policy : bitmap

? ? ?Resync Status : 0% complete

? ? ? ? ? ? ? Name : 10
? ? ? ? ? ? ? UUID : e6b3fd6d:b15db153:afa11b20:7f6a2231
? ? ? ? ? ? Events : 3

? ? Number ? Major ? Minor ? RaidDevice State
? ? ? ?0 ? ? ? 8 ? ? ? 48 ? ? ? ?0 ? ? ?active sync set-A ? /dev/sdd
? ? ? ?1 ? ? ? 8 ? ? ? 64 ? ? ? ?1 ? ? ?active sync set-B ? /dev/sde
? ? ? ?2 ? ? ? 8 ? ? ? 80 ? ? ? ?2 ? ? ?active sync set-A ? /dev/sdf
? ? ? ?3 ? ? ? 8 ? ? ? 96 ? ? ? ?3 ? ? ?active sync set-B ? /dev/sdg
? ? ? ?4 ? ? ? 8 ? ? ?112 ? ? ? ?4 ? ? ?active sync set-A ? /dev/sdh
? ? ? ?5 ? ? ? 8 ? ? ?128 ? ? ? ?5 ? ? ?active sync set-B ? /dev/sdi
? ? ? ?6 ? ? ? 8 ? ? ?144 ? ? ? ?6 ? ? ?active sync set-A ? /dev/sdj
? ? ? ?7 ? ? ? 8 ? ? ?160 ? ? ? ?7 ? ? ?active sync set-B ? /dev/sdk
? ? ? ?8 ? ? ? 8 ? ? ?176 ? ? ? ?8 ? ? ?active sync set-A ? /dev/sdl
? ? ? ?9 ? ? ? 8 ? ? ?192 ? ? ? ?9 ? ? ?active sync set-B ? /dev/sdm
[root@10.74.67.29~]#?

【第二步】解决分区格式化的对齐问题："The resulting partition is not properly aligned for best performance."

(parted) mkpart primary xfs 640 100% ? ?【这是关键步骤】

关键一步需要解决align对齐问题，参考链接：
https://www.cnblogs.com/oradba/p/16145117.html
https://blog.51cto.com/u_15076212/4373955
https://blog.csdn.net/zfw_666666/article/details/126744930

[root@10.74.67.29~]# parted /dev/md10
GNU Parted 3.1
Using /dev/md10
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) p ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Error: /dev/md10: unrecognised disk label
Model: Linux Software RAID Array (md) ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ??
Disk /dev/md10: 40.0TB
Sector size (logical/physical): 512B/4096B
Partition Table: unknown
Disk Flags:?
(parted) mklabel gpt ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
(parted) mkpart primary xfs 2048 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
End? 40.0TB ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ??
Warning: The resulting partition is not properly aligned for best performance.
Ignore/Cancel? Cancel
(parted) mkpart primary xfs 1024
End? 40.0TB ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ??
Warning: The resulting partition is not properly aligned for best performance.
Ignore/Cancel? ^C
(parted) q ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Information: You may need to update /etc/fstab.

获取正确的偏移扇区数是将 optimal_io_size 和 alignment_offset 相加然后除以 physical_block_size.
【算出来是640】
[root@10.74.67.29~]# parted /dev/md10
GNU Parted 3.1
Using /dev/md10
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) p ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Model: Linux Software RAID Array (md)
Disk /dev/md10: 40.0TB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Disk Flags:?

Number ?Start ? End ? ? Size ? ?File system ?Name ? ? Flags
?3 ? ? ?640MB ? 640MB ? 512B ? ? ? ? ? ? ? ? primary
?1 ? ? ?1024MB ?40.0TB ?40.0TB ? ? ? ? ? ? ? primary

(parted) rm 3 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ??
(parted) rm 1
(parted) mkpart primary 1MiB 100% ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ??
Warning: The resulting partition is not properly aligned for best performance.
Ignore/Cancel? ^C ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ??
(parted) mkpart primary 640MiB 100% ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ??
Error: Unable to satisfy all constraints on the partition.
(parted) mkpart primary 640 100% ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ??
Error: Unable to satisfy all constraints on the partition.
(parted) p ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Model: Linux Software RAID Array (md)
Disk /dev/md10: 40.0TB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Disk Flags:?

Number ?Start ? End ? ? Size ? ?File system ?Name ? ? Flags
?1 ? ? ?1049kB ?40.0TB ?40.0TB ? ? ? ? ? ? ? primary

(parted) rm 1
(parted) p
Model: Linux Software RAID Array (md)
Disk /dev/md10: 40.0TB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Disk Flags:?

Number ?Start ?End ?Size ?File system ?Name ?Flags

(parted) mkpart primary 640 100%?
(parted) p ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Model: Linux Software RAID Array (md)
Disk /dev/md10: 40.0TB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Disk Flags:?

Number ?Start ?End ? ? Size ? ?File system ?Name ? ? Flags
?1 ? ? ?640MB ?40.0TB ?40.0TB ? ? ? ? ? ? ? primary

(parted) rm 1
(parted) mkpart primary xfs 640 100% ? ?【这是关键步骤，上面的尝试mkpart primary 都是错的，rm 删掉】
(parted) ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
(parted) p
Model: Linux Software RAID Array (md)
Disk /dev/md10: 40.0TB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Disk Flags:?

Number ?Start ?End ? ? Size ? ?File system ?Name ? ? Flags
?1 ? ? ?640MB ?40.0TB ?40.0TB ? ? ? ? ? ? ? primary

(parted) q ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Information: You may need to update /etc/fstab.

[root@10.74.67.29~]# mkfs.xfs /dev/md10
md10 ? ?md10p1 ?
[root@10.74.67.29~]# mkfs.xfs /dev/md10
md10 ? ?md10p1 ?
[root@10.74.67.29~]# mkfs.xfs /dev/md10
md10 ? ?md10p1 ?
[root@10.74.67.29~]# mkfs.xfs /dev/md10p1? ?【格式化成默认的xfs文件系统】
meta-data=/dev/md10p1 ? ? ? ? ? ?isize=512 ? ?agcount=37, agsize=268435328 blks
? ? ? ? ?= ? ? ? ? ? ? ? ? ? ? ? sectsz=4096 ?attr=2, projid32bit=1
? ? ? ? ?= ? ? ? ? ? ? ? ? ? ? ? crc=1 ? ? ? ?finobt=0, sparse=0
data ? ? = ? ? ? ? ? ? ? ? ? ? ? bsize=4096 ? blocks=9767210880, imaxpct=5
? ? ? ? ?= ? ? ? ? ? ? ? ? ? ? ? sunit=128 ? ?swidth=640 blks
naming ? =version 2 ? ? ? ? ? ? ?bsize=4096 ? ascii-ci=0 ftype=1
log ? ? ?=internal log ? ? ? ? ? bsize=4096 ? blocks=521728, version=2
? ? ? ? ?= ? ? ? ? ? ? ? ? ? ? ? sectsz=4096 ?sunit=1 blks, lazy-count=1
realtime =none ? ? ? ? ? ? ? ? ? extsz=4096 ? blocks=0, rtextents=0
[root@10.74.67.29~]#?

[root@10.74.67.29~]# mkdir /data1
[root@10.74.67.29~]# ls /data/
acl-tools ?backup ?disk-manager
[root@10.74.67.29~]# mount /dev/md0 /data/
mount: /dev/md0 is write-protected, mounting read-only
mount: wrong fs type, bad option, bad superblock on /dev/md0,
? ? ? ?missing codepage or helper program, or other error

? ? ? ?In some cases useful info is found in syslog - try
? ? ? ?dmesg | tail or so.
[root@10.74.67.29~]# mount /dev/md10 /data1/ ? ?【mount挂载】
md10 ? ?md10p1 ?
[root@10.74.67.29~]# mount /dev/md10 /data1/
md10 ? ?md10p1 ?
[root@10.74.67.29~]# mount /dev/md10 /data1/
md10 ? ?md10p1 ?
[root@10.74.67.29~]# mount /dev/md10p1 /data1/
[root@10.74.67.29~]# umount /dev/md10
umount: /dev/md10: not mounted
[root@10.74.67.29~]# umount /dev/md0
umount: /dev/md0: not mounted
[root@10.74.67.29~]# df -h
Filesystem ? ? ?Size ?Used Avail Use% Mounted on
/dev/sda2 ? ? ? ?30G ?2.7G ? 27G ?10% /
devtmpfs ? ? ? ?126G ? ? 0 ?126G ? 0% /dev
tmpfs ? ? ? ? ? 126G ?4.0K ?126G ? 1% /dev/shm
tmpfs ? ? ? ? ? 126G ?2.0G ?124G ? 2% /run
tmpfs ? ? ? ? ? 126G ? ? 0 ?126G ? 0% /sys/fs/cgroup
/dev/sda6 ? ? ? 384G ? 33M ?384G ? 1% /data
/dev/sda3 ? ? ? ?30G ?1.1G ? 29G ? 4% /var
/dev/sda1 ? ? ? 497M ?139M ?359M ?28% /boot
tmpfs ? ? ? ? ? ?26G ? ? 0 ? 26G ? 0% /run/user/0
/dev/md10p1 ? ? ?37T ? 35M ? 37T ? 1% /data1
[root@10.74.67.29~]# cat /etc/fstab?

#
# /etc/fstab
# Created by anaconda on Mon Dec ?4 15:59:26 2023
#
# 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=0e31da41-c199-403e-9052-8752e2ca4e12 / ? ? ? ? ? ? ? ? ? ? ? xfs ? ? defaults ? ? ? ?0 0
UUID=073e19e0-aefb-4ea1-8bb2-e270de8ef7d9 /boot ? ? ? ? ? ? ? ? ? xfs ? ? defaults ? ? ? ?0 0
UUID=3e0074fe-35ec-4b32-a2b3-5af51b969737 /data ? ? ? ? ? ? ? ? ? xfs ? ? defaults ? ? ? ?0 0
UUID=08cb2edf-c846-4b47-85ec-39a4e9f82bdb /var ? ? ? ? ? ? ? ? ? ?xfs ? ? defaults ? ? ? ?0 0
UUID=fec0ba09-83b2-4d39-9afb-46a06061fbef swap ? ? ? ? ? ? ? ? ? ?swap ? ?defaults ? ? ? ?0 0
[root@10.74.67.29~]# umount /dev/sda6
umount: /data: target is busy.
? ? ? ? (In some cases useful info about processes that use
? ? ? ? ?the device is found by lsof(8) or fuser(1))
[root@10.74.67.29~]# blkid /dev/sd
/dev/sda1 ?/dev/sda2 ?/dev/sda3 ?/dev/sda4 ?/dev/sda5 ?/dev/sda6 ?/dev/sdb1 ?/dev/sdc1 ?
[root@10.74.67.29~]# umount /dev/md
md0 ? ? md0p1 ? md10 ? ?md10p1 ?
[root@10.74.67.29~]# umount /dev/md
md0 ? ? md0p1 ? md10 ? ?md10p1 ?
[root@10.74.67.29~]# umount /dev/md0p1
umount: /dev/md0p1: not mounted
[root@10.74.67.29~]# blkid /dev/md0p1
/dev/md0p1: UUID="7626c7d9-85d9-4582-a1a3-cde94aa3aa11" TYPE="xfs" PARTLABEL="primary" PARTUUID="393befd5-ce5e-452b-8ea3-69bdc5124b24"?
[root@10.74.67.29~]# blkid /dev/md10p1
/dev/md10p1: UUID="544cd698-3a5b-420c-b2c1-22030e763664" TYPE="xfs" PARTLABEL="primary" PARTUUID="1eb5c2a0-22b9-4efd-ab4e-d88419096075"?
[root@10.74.67.29~]# vi /etc/fstab ? 【添加开机自动挂载】
[root@10.74.67.29~]#?
[root@10.74.67.29~]#?
[root@10.74.67.29~]# ping www.baidu.com
connect: Network is unreachable
[root@10.74.67.29~]#?
[root@10.74.67.29~]#?
[root@10.74.67.29~]#?

【重启机器raid1和raid10的两个磁盘名字都变了，验证开机自动挂载是正确的】

/dev/md10? 变成了??/dev/md127 ?

?/dev/md10p1 变成了??/dev/md127p1

[wangzhong@Bastion-3~]# ssh root@10.74.67.29
Last login: Wed Dec 20 12:06:42 2023 from 10.10.130.172
[root@10.74.67.29~]#?
[root@10.74.67.29~]#?
[root@10.74.67.29~]# df -h
Filesystem ? ? ?Size ?Used Avail Use% Mounted on
/dev/sda2 ? ? ? ?30G ?2.7G ? 27G ?10% /
devtmpfs ? ? ? ?126G ? ? 0 ?126G ? 0% /dev
tmpfs ? ? ? ? ? 126G ?4.0K ?126G ? 1% /dev/shm
tmpfs ? ? ? ? ? 126G ? 25M ?126G ? 1% /run
tmpfs ? ? ? ? ? 126G ? ? 0 ?126G ? 0% /sys/fs/cgroup
/dev/sda3 ? ? ? ?30G ?1.1G ? 29G ? 4% /var
/dev/sda1 ? ? ? 497M ?139M ?359M ?28% /boot
/dev/md126p1 ? ?892G ? 33M ?892G ? 1% /data
/dev/md127p1 ? ? 37T ? 35M ? 37T ? 1% /data1
tmpfs ? ? ? ? ? ?26G ? ? 0 ? 26G ? 0% /run/user/0
[root@10.74.67.29~]# cd /data1/
[root@10.74.67.29data1]#?
[root@10.74.67.29data1]# ls
[root@10.74.67.29data1]# fdisk -l

Disk /dev/sda: 480.1 GB, 480103981056 bytes, 937703088 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: 0x0005448a

? ?Device Boot ? ? ?Start ? ? ? ? End ? ? ?Blocks ? Id ?System
/dev/sda1 ? * ? ? ? ?2048 ? ? 1026047 ? ? ?512000 ? 83 ?Linux
/dev/sda2 ? ? ? ? 1026048 ? ?62466047 ? ?30720000 ? 83 ?Linux
/dev/sda3 ? ? ? ?62466048 ? 123906047 ? ?30720000 ? 83 ?Linux
/dev/sda4 ? ? ? 123906048 ? 937701375 ? 406897664 ? ?5 ?Extended
/dev/sda5 ? ? ? 123908096 ? 132296703 ? ? 4194304 ? 82 ?Linux swap / Solaris
/dev/sda6 ? ? ? 132298752 ? 937701375 ? 402701312 ? 83 ?Linux
WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.

Disk /dev/sdb: 960.2 GB, 960197124096 bytes, 1875385008 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: 6469EB04-15C4-446B-BE63-718E7D6FB533

# ? ? ? ? Start ? ? ? ? ?End ? ?Size ?Type ? ? ? ? ? ?Name
?1 ? ? ? ? 2048 ? 1875384974 ?894.3G ?Linux filesyste?
WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.

Disk /dev/sdc: 960.2 GB, 960197124096 bytes, 1875385008 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: 2DE63C12-C150-4D73-B5F5-156BE7FB408C

# ? ? ? ? Start ? ? ? ? ?End ? ?Size ?Type ? ? ? ? ? ?Name
?1 ? ? ? ? 2048 ? 1875384974 ?894.3G ?Linux filesyste?

Disk /dev/sdd: 8001.6 GB, 8001563222016 bytes, 15628053168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk label type: dos
Disk identifier: 0x00000000

? ?Device Boot ? ? ?Start ? ? ? ? End ? ? ?Blocks ? Id ?System
/dev/sdd1 ? ? ? ? ? ? ? 1 ?4294967295 ?2147483647+ ?ee ?GPT
Partition 1 does not start on physical sector boundary.

Disk /dev/sde: 8001.6 GB, 8001563222016 bytes, 15628053168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk label type: dos
Disk identifier: 0x00000000

? ?Device Boot ? ? ?Start ? ? ? ? End ? ? ?Blocks ? Id ?System
/dev/sde1 ? ? ? ? ? ? ? 1 ?4294967295 ?2147483647+ ?ee ?GPT
Partition 1 does not start on physical sector boundary.

Disk /dev/sdf: 8001.6 GB, 8001563222016 bytes, 15628053168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk label type: dos
Disk identifier: 0x00000000

? ?Device Boot ? ? ?Start ? ? ? ? End ? ? ?Blocks ? Id ?System
/dev/sdf1 ? ? ? ? ? ? ? 1 ?4294967295 ?2147483647+ ?ee ?GPT
Partition 1 does not start on physical sector boundary.

Disk /dev/sdg: 8001.6 GB, 8001563222016 bytes, 15628053168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk label type: dos
Disk identifier: 0x00000000

? ?Device Boot ? ? ?Start ? ? ? ? End ? ? ?Blocks ? Id ?System
/dev/sdg1 ? ? ? ? ? ? ? 1 ?4294967295 ?2147483647+ ?ee ?GPT
Partition 1 does not start on physical sector boundary.

Disk /dev/sdh: 8001.6 GB, 8001563222016 bytes, 15628053168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk label type: dos
Disk identifier: 0x00000000

? ?Device Boot ? ? ?Start ? ? ? ? End ? ? ?Blocks ? Id ?System
/dev/sdh1 ? ? ? ? ? ? ? 1 ?4294967295 ?2147483647+ ?ee ?GPT
Partition 1 does not start on physical sector boundary.

Disk /dev/sdi: 8001.6 GB, 8001563222016 bytes, 15628053168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk label type: dos
Disk identifier: 0x00000000

? ?Device Boot ? ? ?Start ? ? ? ? End ? ? ?Blocks ? Id ?System
/dev/sdi1 ? ? ? ? ? ? ? 1 ?4294967295 ?2147483647+ ?ee ?GPT
Partition 1 does not start on physical sector boundary.

Disk /dev/sdj: 8001.6 GB, 8001563222016 bytes, 15628053168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk label type: dos
Disk identifier: 0x00000000

? ?Device Boot ? ? ?Start ? ? ? ? End ? ? ?Blocks ? Id ?System
/dev/sdj1 ? ? ? ? ? ? ? 1 ?4294967295 ?2147483647+ ?ee ?GPT
Partition 1 does not start on physical sector boundary.

Disk /dev/sdk: 8001.6 GB, 8001563222016 bytes, 15628053168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk label type: dos
Disk identifier: 0x00000000

? ?Device Boot ? ? ?Start ? ? ? ? End ? ? ?Blocks ? Id ?System
/dev/sdk1 ? ? ? ? ? ? ? 1 ?4294967295 ?2147483647+ ?ee ?GPT
Partition 1 does not start on physical sector boundary.

Disk /dev/sdl: 8001.6 GB, 8001563222016 bytes, 15628053168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk label type: dos
Disk identifier: 0x00000000

? ?Device Boot ? ? ?Start ? ? ? ? End ? ? ?Blocks ? Id ?System
/dev/sdl1 ? ? ? ? ? ? ? 1 ?4294967295 ?2147483647+ ?ee ?GPT
Partition 1 does not start on physical sector boundary.

Disk /dev/sdm: 8001.6 GB, 8001563222016 bytes, 15628053168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk label type: dos
Disk identifier: 0x00000000

? ?Device Boot ? ? ?Start ? ? ? ? End ? ? ?Blocks ? Id ?System
/dev/sdm1 ? ? ? ? ? ? ? 1 ?4294967295 ?2147483647+ ?ee ?GPT
Partition 1 does not start on physical sector boundary.
WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.

Disk /dev/md127: 40007.1 GB, 40007138017280 bytes, 78138941440 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 524288 bytes / 2621440 bytes
Disk label type: gpt
Disk identifier: 80080657-2EE6-41EC-A62A-FD3EF006FB37

# ? ? ? ? Start ? ? ? ? ?End ? ?Size ?Type ? ? ? ? ? ?Name
?1 ? ? ?1249280 ?78138936319 ? 36.4T ?Microsoft basic primary
WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.

Disk /dev/md126: 960.1 GB, 960060784640 bytes, 1875118720 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: 1FF3CEA7-609B-4204-8B0F-1FF7976F70EF

# ? ? ? ? Start ? ? ? ? ?End ? ?Size ?Type ? ? ? ? ? ?Name
?1 ? ? ?3999744 ? 1875118079 ?892.2G ?Microsoft basic primary
[root@10.74.67.29data1]#?

[root@10.74.67.29data1]# mdadm ?-D /dev/md
md/ ? ? ?md126 ? ?md126p1 ?md127 ? ?md127p1 ?
[root@10.74.67.29data1]# mdadm ?-D /dev/md126
/dev/md126:
? ? ? ? ? ?Version : 1.2
? ? ?Creation Time : Thu Dec 14 12:21:59 2023
? ? ? ? Raid Level : raid1
? ? ? ? Array Size : 937559360 (894.13 GiB 960.06 GB)
? ? ?Used Dev Size : 937559360 (894.13 GiB 960.06 GB)
? ? ? Raid Devices : 2
? ? ?Total Devices : 2
? ? ? ?Persistence : Superblock is persistent

? ? ?Intent Bitmap : Internal

? ? ? ?Update Time : Wed Dec 20 12:44:30 2023
? ? ? ? ? ? ?State : clean?
? ? Active Devices : 2
? ?Working Devices : 2
? ? Failed Devices : 0
? ? ?Spare Devices : 0

Consistency Policy : bitmap

? ? ? ? ? ? ? Name : 0
? ? ? ? ? ? ? UUID : 2b7b2fc9:40aa1c39:d577443b:6a0907e4
? ? ? ? ? ? Events : 953

? ? Number ? Major ? Minor ? RaidDevice State
? ? ? ?0 ? ? ? 8 ? ? ? 17 ? ? ? ?0 ? ? ?active sync ? /dev/sdb1
? ? ? ?1 ? ? ? 8 ? ? ? 33 ? ? ? ?1 ? ? ?active sync ? /dev/sdc1
[root@10.74.67.29data1]# mdadm ?-D /dev/md127
/dev/md127:
? ? ? ? ? ?Version : 1.2
? ? ?Creation Time : Wed Dec 20 11:38:54 2023
? ? ? ? Raid Level : raid10
? ? ? ? Array Size : 39069470720 (37259.55 GiB 40007.14 GB)
? ? ?Used Dev Size : 7813894144 (7451.91 GiB 8001.43 GB)
? ? ? Raid Devices : 10
? ? ?Total Devices : 10
? ? ? ?Persistence : Superblock is persistent

? ? ?Intent Bitmap : Internal

? ? ? ?Update Time : Wed Dec 20 12:44:37 2023
? ? ? ? ? ? ?State : clean, resyncing?
? ? Active Devices : 10
? ?Working Devices : 10
? ? Failed Devices : 0
? ? ?Spare Devices : 0

? ? ? ? ? ? Layout : near=2
? ? ? ? Chunk Size : 512K

Consistency Policy : bitmap

? ? ?Resync Status : 1% complete

? ? ? ? ? ? ? Name : 10
? ? ? ? ? ? ? UUID : e6b3fd6d:b15db153:afa11b20:7f6a2231
? ? ? ? ? ? Events : 940

[root@10.74.67.29~]# df -h
Filesystem ? ? ?Size ?Used Avail Use% Mounted on
/dev/sda2 ? ? ? ?30G ?2.7G ? 27G ?10% /
devtmpfs ? ? ? ?126G ? ? 0 ?126G ? 0% /dev
tmpfs ? ? ? ? ? 126G ?4.0K ?126G ? 1% /dev/shm
tmpfs ? ? ? ? ? 126G ? 41M ?126G ? 1% /run
tmpfs ? ? ? ? ? 126G ? ? 0 ?126G ? 0% /sys/fs/cgroup
/dev/sda3 ? ? ? ?30G ?1.1G ? 29G ? 4% /var
/dev/sda1 ? ? ? 497M ?139M ?359M ?28% /boot
/dev/md126p1 ? ?892G ? 33M ?892G ? 1% /data
/dev/md127p1 ? ? 37T ? 35M ? 37T ? 1% /data1
tmpfs ? ? ? ? ? ?26G ? ? 0 ? 26G ? 0% /run/user/0
[root@10.74.67.29~]#

文章来源:https://blog.csdn.net/wangzhong1979/article/details/135106880
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