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

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Is it possible to enable online resizing after the fs was created? – Managing your servers can streamline the performance of your team by allowing them to complete complex tasks faster. Plus, it can enable them to detect problems early on before they get out of hand and compromise your business. As a result, the risk of experiencing operational setbacks is drastically lower.

But the only way to make the most of your server management is to perform it correctly. And to help you do so, this article will share nine tips on improving your server management and fix some problem about linux, lvm, ext3, , .

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?

Solution :

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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