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Adam Lassek
Asked: 2010-09-24 20:32:34 +0800 CST

Is it possible to enable online resizing after the fs was created?

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I have an Ext3 filesystem sitting on an LVM volume group. The partition was formatted before online resizing was enabled by default.

Is it possible to turn this feature on after the fact, like journaling, or does it have to be present from the beginning?

linux lvm ext3

1 Answers

  1. Best Answer

    If you are referring to the resize_inode feature, then yes, you can resize a system created without this flag. What this flag does, is to allocate much more space for file system inodes (that can't be change post filesystem creation). I don't remember the specific limits of growing a filesystem, but I think it was 1024 the original size for FS with resize_inode and few dozen for FS without it.

    Basically, online resizing of ext filesystems is dependent on the kernel, the amount of resizing possible, on available inodes.

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