Dynamic expansion of LV in Linux system

LV expansion in Linux systems

Server: 192.168.26.209

Expansion Data disk: The original server storage configuration information

Df-h

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Df–h

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Add a hard drive, 20G expansion

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Start the server and the system has identified the new hard drive device.

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Create PV:

[Email protected] ~]# PVCREATE/DEV/SDC

[Email protected] ~]# PVs

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Expand VG First:

[Email protected] ~]# vgextend VG_CENTOS/DEV/SDC

[Email protected] ~]# PVs

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Re-expand LV: (Data directory)

[Email protected] ~]# lvextend-l +19.9g/dev/vg_centos/lv_data

Rounding size to boundary between physical extents:19.90 GiB

Extending logical Volume Lv_data to 39.90 GiB

Logical Volume Lv_data successfully resized

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At this point we look at the directory capacity, the data directory capacity has not changed

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View data is also in:

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To perform a file system detection command:

Resize2fs/dev/vg_centos/lv_data

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To view the directory capacity again:

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View data:

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This article is from the "on the Road" blog, please be sure to keep this source http://jdonghong.blog.51cto.com/3473478/1883363

Dynamic expansion of LV in Linux system