EC2 Linux Extended Drive

Before the beans learned how to add a new hard disk to EC2 Linux, how do I extend an existing hard drive? The basic idea is simple, back up the current hard disk, then create a new hard disk based on the backup, disconnect the old hard disk, connect the new hard disk, scan and expand the partition

First create a 2G hard drive to connect to the EC2 instance

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Then the basic operation is as follows, query the current connection of the volume, you can use the fdisk-l or LSBLK command, can display the current connected disk

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Then format the new disk partition

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Create a/ebs mount point, load the hard disk, and create a testfile empty file on it as a test

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Next, let's see how to extend this 2G hard drive

First of all, it should be umount This example

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How to make a backup of him

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Named Test.

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This snapshot can be seen in snapshot's operator panel after creation

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Create a new volume with this test snapshot

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I expanded the space to 3G when I created it.

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Then detach the original 2G hard drive, attach the new 3G HDD

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Scan the currently loaded hard drive

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Because this drive is from a snapshot, there is already a file system and I created a test document, you can use file to view the filesystem

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No formatting required, direct mount can be

Query the loaded device with df-h, find size or 2G

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You need to expand the partition table and then query the dimensions again after the expansion.

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The files you created earlier are still there!

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The expansion was successful.

This article is from the "Mapo Tofu" blog, please be sure to keep this source http://beanxyz.blog.51cto.com/5570417/1532125