用SYS后台直接安装的系统, 默认是Raid1
4x4T盘, 正常R1应该是8T可用, 为啥只有4T呢
求各位大佬指点
df -lh
- # df -lh
- Filesystem Size Used Avail Use% Mounted on
- devtmpfs 16G 0 16G 0% /dev
- tmpfs 16G 0 16G 0% /dev/shm
- tmpfs 16G 9.8M 16G 1% /run
- tmpfs 16G 0 16G 0% /sys/fs/cgroup
- /dev/md2 3.7T 1.6G 3.7T 1% /
- /dev/sdc1 511M 3.6M 508M 1% /boot/efi
- tmpfs 3.2G 0 3.2G 0% /run/user/0
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mdadm --detail /dev/md2
- # mdadm --detail /dev/md2
- /dev/md2:
- Version : 1.2
- Creation Time : Fri Dec 17 07:23:40 2021
- Raid Level : raid1
- Array Size : 3905836032 (3.64 TiB 4.00 TB)
- Used Dev Size : 3905836032 (3.64 TiB 4.00 TB)
- Raid Devices : 4
- Total Devices : 4
- Persistence : Superblock is persistent
- Intent Bitmap : Internal
- Update Time : Fri Dec 17 08:00:13 2021
- State : clean
- Active Devices : 4
- Working Devices : 4
- Failed Devices : 0
- Spare Devices : 0
- Consistency Policy : bitmap
- Name : md2
- UUID : e1578dbf:67dec8af:e90bbea2:5c506527
- Events : 4
- Number Major Minor RaidDevice State
- 0 8 34 0 active sync /dev/sdc2
- 1 8 50 1 active sync /dev/sdd2
- 2 8 2 2 active sync /dev/sda2
- 3 8 18 3 active sync /dev/sdb2
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fdisk -l
- # fdisk -l
- WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.
- Disk /dev/sdc: 4000.8 GB, 4000787030016 bytes, 7814037168 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: F0539E2C-A6FF-4A4A-B1CC-0709EEF5DD96
- # Start End Size Type Name
- 1 2048 1048575 511M EFI System primary
- 2 1048576 7812982783 3.7T Linux RAID primary
- 3 7812982784 7814031359 512M Linux filesyste primary
- WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.
- Disk /dev/sdb: 4000.8 GB, 4000787030016 bytes, 7814037168 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: 71A7094B-5131-4377-ADA8-F205B2A76077
- # Start End Size Type Name
- 1 2048 1048575 511M EFI System primary
- 2 1048576 7812982783 3.7T Linux RAID primary
- 3 7812982784 7814031359 512M Linux filesyste primary
- WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.
- Disk /dev/sdd: 4000.8 GB, 4000787030016 bytes, 7814037168 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: A19B1831-3CEA-4961-86E7-1A0E47B1EF8C
- # Start End Size Type Name
- 1 2048 1048575 511M EFI System primary
- 2 1048576 7812982783 3.7T Linux RAID primary
- 3 7812982784 7814031359 512M Linux filesyste primary
- WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.
- Disk /dev/sda: 4000.8 GB, 4000787030016 bytes, 7814037168 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: F6829130-26BB-4EE2-BB6A-B148297E9E21
- # Start End Size Type Name
- 1 2048 1048575 511M EFI System primary
- 2 1048576 7812982783 3.7T Linux RAID primary
- 3 7812982784 7814031359 512M Linux filesyste primary
- 4 7814033072 7814037134 2M Linux filesyste logical
- Disk /dev/md2: 3999.6 GB, 3999576096768 bytes, 7811672064 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
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