Limiting the size of Solaris tmpfs file systems

I had an application go nuts a week or two ago, and it filled up /tmp on one of my Solaris 10 hosts. Since /tmp is an in memory file system, you can only imagine the chaos this caused. :( To ensure that this never happens again, I modified the tmpfs entry in /etc/vfstab to limit tmpfs to 1GB in size:

$ grep ^swap /etc/vfstab

swap    -       /tmp    tmpfs   -       yes     size=1024m

That will teach that pesky application. :)

2 thoughts on “Limiting the size of Solaris tmpfs file systems”

  1. Hi all,

    Suppose that you want to change the size, for example, to 2 Go (size=2048m).
    Is it possible to change it dynamically with the command : # mount -o remount /tmp

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