E25-在线扩盘须要注意的点

在线扩盘须要注意的点

1.注意在线扩盘的LVS名称

2.注意resize2fs的时间点是单个单个执行，加多块盘时，切记不可一块儿增长

pvcreate   /dev/sdb
vgextend  VolGroup00  /dev/sdb
lvextend -l +100%FREE /dev/VolGroup00/LogVol00
resize2fs  /dev/VolGroup00/LogVol00

[s-linuxad@imgfile-v-szzb ~]$ df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
                      289G  169G  106G  62% /
/dev/sda1              99M   26M   68M  28% /boot
tmpfs                 7.8G   12K  7.8G   1% /dev/shm
[s-linuxad@imgfile-v-szzb ~]$ sudo -i
[root@imgfile-v-szzb ~]# lvdisplay
  --- Logical volume ---
  LV Name                /dev/VolGroup00/LogVol00
  VG Name                VolGroup00
  LV UUID                8d1kvS-5mba-BSOQ-Z7rd-xf8a-hJ3h-y3lUTl
  LV Write Access        read/write
  LV Status              available
  # open                 1
  LV Size                297.91 GB
  Current LE             9533
  Segments               2
  Allocation             inherit
  Read ahead sectors     0
  Block device           253:0
   
  --- Logical volume ---
  LV Name                /dev/VolGroup00/LogVol01
  VG Name                VolGroup00
  LV UUID                w2C8gK-NUfy-LF4s-vM4R-I5xZ-4Q62-lspDrQ
  LV Write Access        read/write
  LV Status              available
  # open                 1
  LV Size                1.94 GB
  Current LE             62
  Segments               1
  Allocation             inherit
  Read ahead sectors     0
  Block device           253:1