我刚刚在 raidz1 中使用 3 个 HGST 6TB 硬盘扩展了我的 zpool 命名存储。我以为这只会增加大约 11.x TB 的存储空间（因为它们实际上是 6000GB 硬盘），但现在 zpool list 显示我总共有 27.1 TB。这似乎比我应该的要多。我很害怕我做错了什么，我的家庭服务器阵列丢失了奇偶校验。我将它们添加到池中
sudo zpool add -f 存储 raidz1 驱动器1 驱动器2 驱动器3
我是否做错了什么？如果是，是否可以撤消我的更改？
sudo zpool 列表
NAME SIZE ALLOC FREE EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT
storage 27.1T 9.32T 17.8T - - 34% 1.00x ONLINE -
sudo zpool 状态
NAME STATE READ WRITE CKSUM
storage ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
ata-WDC_WD60EFRX-68MYMN1_WD-WX11DA40H4ZK ONLINE 0 0 0
ata-WDC_WD60EFRX-68MYMN1_WD-WX51D6410414 ONLINE 0 0 0
mirror-1 ONLINE 0 0 0
ata-WDC_WD60EFRX-68MYMN1_WD-WX91D65355TK ONLINE 0 0 0
ata-WDC_WD60EFRX-68L0BN1_WD-WXB1HB4TP7L0 ONLINE 0 0 0
raidz1-2 ONLINE 0 0 0
wwn-0x5000cca255c02505 ONLINE 0 0 0
wwn-0x5000cca255c039a7 ONLINE 0 0 0
wwn-0x5000cca255c03b95 ONLINE 0 0 0
errors: No known data errors
sudo fdisk -l
WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sda: 6001.2 GB, 6001175126016 bytes
256 heads, 63 sectors/track, 726751 cylinders, total 11721045168 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 identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sda1 1 4294967295 2147483647+ ee GPT
Partition 1 does not start on physical sector boundary.
WARNING: GPT (GUID Partition Table) detected on '/dev/sdc'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sdc: 250.1 GB, 250059350016 bytes**This is the OS Drive**
255 heads, 63 sectors/track, 30401 cylinders, total 488397168 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 identifier: 0xcb1189ee
Device Boot Start End Blocks Id System
/dev/sdc1 1 488397167 244198583+ ee GPT
WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sdb: 6001.2 GB, 6001175126016 bytes
256 heads, 63 sectors/track, 726751 cylinders, total 11721045168 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 identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sdb1 1 4294967295 2147483647+ ee GPT
Partition 1 does not start on physical sector boundary.
WARNING: GPT (GUID Partition Table) detected on '/dev/sdd'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sdd: 6001.2 GB, 6001175126016 bytes
256 heads, 63 sectors/track, 726751 cylinders, total 11721045168 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 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.
WARNING: GPT (GUID Partition Table) detected on '/dev/sde'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sde: 6001.2 GB, 6001175126016 bytes
256 heads, 63 sectors/track, 726751 cylinders, total 11721045168 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 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.
WARNING: GPT (GUID Partition Table) detected on '/dev/sdf'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sdf: 6001.2 GB, 6001175126016 bytes
256 heads, 63 sectors/track, 726751 cylinders, total 11721045168 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 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.
WARNING: GPT (GUID Partition Table) detected on '/dev/sdg'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sdg: 6001.2 GB, 6001175126016 bytes
256 heads, 63 sectors/track, 726751 cylinders, total 11721045168 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 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.
WARNING: GPT (GUID Partition Table) detected on '/dev/sdh'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sdh: 6001.2 GB, 6001175126016 bytes
256 heads, 63 sectors/track, 726751 cylinders, total 11721045168 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 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.
sudo lshw-类磁盘
*-disk:0
description: ATA Disk
product: HGST HDN726060AL
physical id: 0.0.0
bus info: scsi@0:0.0.0
logical name: /dev/sdf
version: T517
serial: K1G0HW1B
size: 5589GiB (6001GB)
capacity: 5589GiB (6001GB)
capabilities: 15000rpm gpt-1.00 partitioned partitioned:gpt
configuration: ansiversion=6 guid=62a489e5-51af-c94f-9535-235b7bbe2d15 sectorsize=4096
*-disk:1
description: ATA Disk
product: HGST HDN726060AL
physical id: 0.1.0
bus info: scsi@0:0.1.0
logical name: /dev/sdg
version: T517
serial: K1G09VRB
size: 5589GiB (6001GB)
capacity: 5589GiB (6001GB)
capabilities: 15000rpm gpt-1.00 partitioned partitioned:gpt
configuration: ansiversion=6 guid=a7295fde-f0f8-7f41-8546-7ee02490d72b sectorsize=4096
*-disk:2
description: ATA Disk
product: HGST HDN726060AL
physical id: 0.2.0
bus info: scsi@0:0.2.0
logical name: /dev/sdh
version: T517
serial: K1G0HB3B
size: 5589GiB (6001GB)
capacity: 5589GiB (6001GB)
capabilities: 15000rpm gpt-1.00 partitioned partitioned:gpt
configuration: ansiversion=6 guid=4677c5c9-364a-c943-a8d5-90d2159f3cf0 sectorsize=4096
*-disk
description: ATA Disk
product: WDC WD60EFRX-68M
vendor: Western Digital
physical id: 0.0.0
bus info: scsi@1:0.0.0
logical name: /dev/sda
version: 82.0
serial: WD-WX91D65355TK
size: 5589GiB (6001GB)
capabilities: gpt-1.00 partitioned partitioned:gpt
configuration: ansiversion=5 guid=e4026c6a-61c5-9a4a-adaf-ebcdf8bba68c sectorsize=4096
*-disk
description: ATA Disk
product: WDC WD60EFRX-68L
vendor: Western Digital
physical id: 0.0.0
bus info: scsi@2:0.0.0
logical name: /dev/sdb
version: 82.0
serial: WD-WXB1HB4TP7L0
size: 5589GiB (6001GB)
capabilities: gpt-1.00 partitioned partitioned:gpt
configuration: ansiversion=5 guid=8b576966-3d94-424b-aae9-9fb35c0e070a sectorsize=4096
*-disk
description: ATA Disk
product: Samsung SSD 840
physical id: 0.0.0
bus info: scsi@4:0.0.0
logical name: /dev/sdc
version: EXT0
serial: S1DBNEADA00610E
size: 232GiB (250GB)
capabilities: gpt-1.00 partitioned partitioned:gpt
configuration: ansiversion=5 guid=8d48ca17-2e53-4ee4-a040-e80362e68eca sectorsize=512
*-disk
description: ATA Disk
product: WDC WD60EFRX-68M
vendor: Western Digital
physical id: 0.0.0
bus info: scsi@5:0.0.0
logical name: /dev/sdd
version: 82.0
serial: WD-WX11DA40H4ZK
size: 5589GiB (6001GB)
capabilities: gpt-1.00 partitioned partitioned:gpt
configuration: ansiversion=5 guid=5811c203-99cd-5342-bb8f-c838f896b64e sectorsize=4096
*-disk
description: ATA Disk
product: WDC WD60EFRX-68M
vendor: Western Digital
physical id: 0.0.0
bus info: scsi@6:0.0.0
logical name: /dev/sde
version: 82.0
serial: WD-WX51D6410414
size: 5589GiB (6001GB)
capabilities: gpt-1.00 partitioned partitioned:gpt
configuration: ansiversion=5 guid=c24e5950-cd95-f94b-826a-21a004221d32 sectorsize=4096
答案1
哦不！你做了一件很糟糕的事……
请阅读：http://nex7.blogspot.com/2013/03/readme1st.html
需要注意两个问题：
在 RAIDZ1|2|3 下，该zpool命令反映组成池的磁盘的大小，包括奇偶校验。zfs list将显示可用空间。这就是差异的来源。
另外，您最终要做的是......通过添加 3 个磁盘的 RAIDZ1 组来扩展 4 磁盘 RAID 1 + 0（ZFS 镜像）。
因此，您的镜像意味着 RAID1 对被条带化在一起。很好。但是通过添加 RAIDZ1 组，您现在拥有一个跨两个镜像集和一个 RAIDZ1 的条带。
镜像组中的两个磁盘或 RAIDZ1 组中的两个磁盘发生故障都会导致整个池发生故障。
您应该通过创建更多镜像对来添加偶数个磁盘。现在，您无法恢复更改，因为您的数据分散在磁盘组中。这可能是备份.重建.恢复情况。