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Technology Single LVMLinux中文

Which command is used to create a snapshot logical volume named lv_snap of size 1GB from an existing logical volume lv_data in volume group vg_data? 請問要如何從現有的磁區群組 vg_data 中的邏輯卷軸 lv_data 建立一個大小為 1GB 名為 lv_snap 的快照邏輯卷軸？

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Answer choices

  1. A lvcreate --size 1G --snapshot --name lv_snap /dev/vg_data/lv_data
  2. B lvsnapshot -n lv_snap -s 1G /dev/vg_data/lv_data
  3. C pvcreate --snapshot 1G /dev/vg_data/lv_data
  4. D vgcreate --snapshot /dev/vg_data/lv_data

Learning notes

The --snapshot or -s flag with --size is used to create a snapshot LV. 使用 --snapshot (或 -s) 配合大小參數即可建立快照 LV

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