openstack-扩展多路径逻辑块

sudo parted /dev/mapper/mpatha print

Model: Linux device-mapper (multipath) Disk /dev/mapper/mpatha: 14.5TB Sector size (logical/physical): 512B/512B Partition Table: gpt Disk Flags: Number Start End Size File system Name Flags 1 1049kB 2.0TB 2.0TB mpatha1

 

 当前 mpatha1 仅占用 2TB，剩余空间未分配。

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​​2. 删除现有分区（操作前务必备份数据！）​​

 

sudo parted /dev/mapper/mpatha (parted)

rm 1 # 删除分区1 

print # 确认分区已删除

quit

 

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​​3. 创建新分区（占用全部空间）​​

sudo parted /dev/mapper/mpatha (parted) mkpart primary 0% 100% # 使用全部空间

set 1 lvm on # 标记为LVM分区 

print # 验证 

quit

parted /dev/mapper/mpatha 

mklabel gpt # 转换为GPT分区表

mkpart primary 0% 100% # 创建占用全部空间的分区

set 1 lvm on # 标记为LVM分区

print

# 验证分区表类型为gpt 

quit

​​（2）重新创建物理卷（PV）并扩展卷组（VG）​​

sudo pvcreate /dev/mapper/mpatha1

 

vgcreate cinder-volumes /dev/mapper/mpatha1 创建vg

lvcreate -l 100%FREE -T cinder-volumes/cinder-volumes-pool   创建lv

systemctl restart openstack-cinder-volume.service target.service 重启服务