替换RAID1磁盘时遭遇分区大小不一致问题

最近我的一块RAID1磁盘突然挂了，我赶紧买了个新盘换上，还用cfdisk把它格式成了Linux RAID格式。

• 新驱动器：/dev/sdc
• 旧驱动器：/dev/sdd

它们的总字节数和扇区数看起来完全一致，但格式化后的分区大小却不一样……

fdisk -l /dev/sd{c,d}
Disk /dev/sdc: 7.28 TiB, 8001563222016 bytes, 15628053168 sectors
Disk model: ST8000VN0022-2EL
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 952AC4E6-20B9-408D-83CE-AC4AEFBC1075

Device     Start         End     Sectors  Size Type
/dev/sdc1   2048 15628052479 15628050432  7.3T Linux RAID


Disk /dev/sdd: 7.28 TiB, 8001563222016 bytes, 15628053168 sectors
Disk model: ST8000VN004-2M21
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

备注：内容来源于stack exchange，提问作者slackline