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I am using cPanel hosting. I rent 20GB and /home/virtfs is taking up nearly 10GB.

I read that using jailed shell accounts could be responsible for large virtfs file. Most of the user accounts have SFTP access using SSH identity key, but shell access is denied to all account (except root).

Any suggestions as to how to reduce the size of this file?

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2 Answers

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How are you measuring the size of /home/virtfs? It is indeed created for jailed shell logins, but those include SFTP logins. It contains a number of bind mounts, and so likely the disk usage you're seeing is logically elsewhere in the filesystem as well. In other words, that 10GB is probably real user data. The cPanel docs go into detail about VirtFS.

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I checked the size by du -chs /home/virtfs. I will have a look at the cPanel link. Cheers. – Owen May 2 '11 at 20:46
FYI, du does not take into account hard links and bind mounts when calculating disk usage of a directory. So, while the total size of files inside /home/virtfs may sum to over 10GB, if you were to unmount /home/virtfs, I don't believe you'd see any less disk usage via df. – justarobert May 2 '11 at 23:08
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try running below as root

/scripts/clear_orphaned_virtfs_mounts --clearall

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