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Toodarday
Asked: 2016-10-18 09:42:53 +0800 CST

如何扩展我的 LVM 分区

  • 772

我已经在机器上安装了 Proxmox。我需要扩展/dev/mapper/pve-data未使用的空间/dev/sdb5

我怎样才能做到这一点？

fdisk -l

Disk /dev/ram0: 64 MiB, 67108864 bytes, 131072 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 /dev/ram1: 64 MiB, 67108864 bytes, 131072 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 /dev/ram2: 64 MiB, 67108864 bytes, 131072 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 /dev/ram3: 64 MiB, 67108864 bytes, 131072 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 /dev/ram4: 64 MiB, 67108864 bytes, 131072 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 /dev/ram5: 64 MiB, 67108864 bytes, 131072 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 /dev/ram6: 64 MiB, 67108864 bytes, 131072 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 /dev/ram7: 64 MiB, 67108864 bytes, 131072 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 /dev/ram8: 64 MiB, 67108864 bytes, 131072 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 /dev/ram9: 64 MiB, 67108864 bytes, 131072 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 /dev/ram10: 64 MiB, 67108864 bytes, 131072 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 /dev/ram11: 64 MiB, 67108864 bytes, 131072 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 /dev/ram12: 64 MiB, 67108864 bytes, 131072 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 /dev/ram13: 64 MiB, 67108864 bytes, 131072 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 /dev/ram14: 64 MiB, 67108864 bytes, 131072 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 /dev/ram15: 64 MiB, 67108864 bytes, 131072 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 /dev/sda: 223.6 GiB, 240057409536 bytes, 468862128 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
Disklabel type: dos
Disk identifier: 0xfbd89a5c

Device     Boot    Start       End   Sectors  Size Id Type
/dev/sda1  *        4096  40962047  40957952 19.5G 83 Linux
/dev/sda2       40962048  43057151   2095104 1023M 82 Linux swap / Solaris
/dev/sda3       43057152 468854783 425797632  203G  f W95 Ext'd (LBA)
/dev/sda5       43059200 468854783 425795584  203G 8e Linux LVM

Disk /dev/sdb: 223.6 GiB, 240057409536 bytes, 468862128 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
Disklabel type: dos
Disk identifier: 0xafd793e2

Device     Boot    Start       End   Sectors  Size Id Type
/dev/sdb1           4096  40962047  40957952 19.5G fd Linux raid autodetect
/dev/sdb2       40962048  43057151   2095104 1023M 82 Linux swap / Solaris
/dev/sdb3       43057152 468854783 425797632  203G  f W95 Ext'd (LBA)
/dev/sdb5       43059200 468854783 425795584  203G fd Linux raid autodetect

Disk /dev/mapper/pve-data: 199 GiB, 213708177408 bytes, 417398784 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
partitioning

1 个回答

  1. Best Answer

    问题中有趣的信息是 和pvs的vgs输出lvs。

    但是，如果我采取一些谨慎的猜测，我会猜你VG的名字是pve，你的名字lv是data。当前的物理卷是/dev/sda5，并且您使用完整的分区作为您的逻辑卷data。我还假设 /dev/sdb5 不包含任何数据，所以我们不会冒险丢失任何东西？

    我将从将分区类型更改为/dev/sdb5fromLinux raid autodetect 开始Linux LVM。

    您可以使用 fdisk 执行此操作。

    # fdisk /dev/sdb
Command (m for help): t
Partition number (1-5): 5
Hex code (type L to list codes): 8e
Changed system type of partition 5 to 8e (Linux LVM)
Command (m for help): w

    然后你pvcreate用来制作一个新的物理卷：

    # pvcreate /dev/sdb5

    您现在应该在键入时列出 2 个物理卷pvs

    # pvs
PV         VG        Fmt  Attr PSize  PFree
/dev/sda5  pve       lvm2 a--  xx.xxg xx.00m
/dev/sdb5            lvm2 a--  xx.xxg xx.00m

    下一步是将新的物理卷添加到您的卷组中，pve. 您可以通过扩展卷组来做到这一点， by /dev/sdb5， with vgextend。

    # vgextend pve /dev/sdb5

    如果您现在列出有关您的卷组的信息，vgs您应该会看到您拥有的可用空间大小为/dev/sdb5

    # vgs
VG        #PV #LV #SN Attr   VSize  VFree
pve       1   1   0 wz--n- xx.xxg xx.00m

    要扩展逻辑卷data，请使用命令lvextend。如果您希望使用所有可用的可用空间，您可以这样做：

    lvextend -rl +100%FREE pve/data

    如果您只想使用一些可用空间来扩展它，您可以这样做：

    lvextend -rL +50G pve/data

    -r 选项为您调整文件系统的大小，因此您不必在之后手动执行此操作。

    • 2

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