ハードディスク追加してからLVMをマウントするまでの手順

LVM

手順†

# pvcreate /dev/sdc1
 Physical volume "/dev/sdc1" successfully created
# pvscan
 PV /dev/sda3   VG vg01            lvm2 [929.70 GiB / 861.70 GiB free]
 PV /dev/sdc1                      lvm2 [930.38 GiB]
 Total: 2 [1.82 TiB] / in use: 1 [929.70 GiB] / in no VG: 1 [930.38 GiB]
# pvdisplay /dev/sda3
 --- Physical volume ---
 PV Name               /dev/sda3
 VG Name               vg01
 PV Size               929.71 GiB / not usable 2.00 MiB
 Allocatable           yes
 PE Size               4.00 MiB
 Total PE              238004
 Free PE               220596
 Allocated PE          17408
 PV UUID               iQZB88-jNmJ-SEv9-AX31-BPeo-bOLc-0a4dtc
# vgs
 VG   #PV #LV #SN Attr   VSize   VFree
 vg01   1   6   0 wz--n- 929.70g 861.70g
# vgcreate vg02 /dev/sdc1
 Volume group "vg02" successfully created
# vgscan
 Reading all physical volumes.  This may take a while...
 Found volume group "vg02" using metadata type lvm2
 Found volume group "vg01" using metadata type lvm2
# vgdisplay vg02
 --- Volume group ---
 VG Name               vg02
 System ID
 Format                lvm2
 Metadata Areas        1
 Metadata Sequence No  1
 VG Access             read/write
 VG Status             resizable
 MAX LV                0
 Cur LV                0
 Open LV               0
 Max PV                0
 Cur PV                1
 Act PV                1
 VG Size               930.38 GiB
 PE Size               4.00 MiB
 Total PE              238178
 Alloc PE / Size       0 / 0
 Free  PE / Size       238178 / 930.38 GiB
 VG UUID               bPOh2m-xCAs-Tbx1-w1j6-oq22-C9TI-3Xb5Iy

# lvcreate -L 200G -n lv_share01 vg02
 Logical volume "lv_share01" created
# lvs
 lv_share01 vg02 -wi-a----- 200.00g
# mkfs.xfs -f /dev/vg02/lv_share01
meta-data=/dev/vg02/lv_share01   isize=256    agcount=16, agsize=3276800 blks
        =                       sectsz=4096  attr=2, projid32bit=0
data     =                       bsize=4096   blocks=52428800, imaxpct=25
        =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0
log      =internal log           bsize=4096   blocks=25600, version=2
         =                       sectsz=4096  sunit=1 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0
# mkdir /mnt/share01
# mount /dev/vg02/lv_share01 /mnt/share01/
# df -Th
/dev/mapper/vg02-lv_share01
                    xfs    200G   33M  200G   1% /mnt/share01
# cp -p /etc/fstab /etc/fstab.`date +%Y%m%d`
# vi /etc/fstab
/dev/mapper/vg02-lv_share01 /mnt/share01         xfs    defaults        1 2
# umount /mnt/share01
# mount /mnt/share01/
/dev/mapper/vg02-lv_share01
                    xfs    200G   33M  200G   1% /mnt/share01