我有一个 3TB 硬盘。 RAID 5 类型。我想将其转换为 LVM。如何才能在不丢失数据且无需再次安装操作系统的情况下执行此操作？
$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/mpatha4 96G 3.7G 88G 5% /
devtmpfs 6.9G 0 6.9G 0% /dev
tmpfs 6.9G 80K 6.9G 1% /dev/shm
tmpfs 6.9G 908K 6.9G 1% /run
tmpfs 6.9G 0 6.9G 0% /sys/fs/cgroup
tmpfs 6.9G 8.1M 6.9G 1% /tmp
/dev/mapper/mpatha2 190M 66M 115M 37% /boot
/dev/mapper/mpatha3 289G 2.3G 272G 1% /var
/dev/mapper/mpatha6 2.3T 1.9T 381G 83% /mydata
$ cat /proc/driver/cciss/cciss0
cciss0: HP Smart Array E200i Controller
Board ID: 0x3211103c
Firmware Version: 1.72
IRQ: 65
Logical drives: 1
Current Q depth: 0
Current # commands on controller: 0
Max Q depth since init: 1
Max # commands on controller since init: 165
Max SG entries since init: 31
Sequential access devices: 0
$ fdisk -l
Disk /dev/cciss/c0d0: 3000.5 GB, 3000513552384 bytes, 5860378032 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: 0x00000000
Device Boot Start End Blocks Id System
/dev/cciss/c0d0p1 * 1 4294967295 2147483647+ ee GPT
Disk /dev/mapper/mpatha: 3000.5 GB, 3000513552384 bytes, 5860378032 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: 0x00000000
Device Boot Start End Blocks Id System
/dev/mapper/mpatha1 * 1 4294967295 2147483647+ ee GPT
....