Expand the disk space of the xen Virtual System

Expand the disk space of the xen Virtual System-Linux general technology-Linux technology and application information. The following is a detailed description. A few days ago, I suddenly found that the xen virtual system went down and did not have any functions. When I arrived at the terminal, I saw that the hard disk was full.

I finally got it. The original disk space can still be expanded (as long as there is space on the physical disk)

1. Create a temporary file of the size you want to add (1 GB here)

Dd if =/dev/zero of =/tmp/temp_expand bs = 1024 k count = 10002. Disable the Virtual System

Xm shutdown yuki3. Add the temporary file you just created to the image of the xen virtual disk.

Cat/tmp/temp_expand>/xen-images/yuki. img4. redefine the disk image size.

Resize2fs-f/xen-images/yuki. img5. start the VM

Xm create-c/etc/xen/vm_yuki.config.sxp6. check whether it is successful.

Df-h: My results are very successful. I created the/tmp directory while creating temporary files, but I didn't find that/partition is not much bigger, after the temporary file is created, it is not as big as expected (not found at this time ). After completing the operation, I found that only 4 GB space was added. It would have been 10 Gb. In addition, the result of df-h viewing is also odd:

Size: 937 M
Used:-3.5G
Avail: 4.2G

Unsolved ing... The disk is being expanded for the second time. This is 40 GB.