Re: 64bit ext4 and kernel version compatibility
On Thu, 2020-01-09 at 14:35 +0300, Reco wrote:
> On Wed, Jan 08, 2020 at 06:08:16PM -0600, R. Ramesh wrote:
> > Before I get the source and build and update e2fsprogs and then the
> > file system, I want to make sure that my current kernel version does
> > not have any limitation to support 64bit ext4.
>
> You kernel should support the feature, as it was introduced back at the
> version 3.6 of the kernel - [1].
>
> Reco
>
> [1] https://ext4.wiki.kernel.org/index.php/Ext4_Metadata_Checksums
That web page is talking about metadata checksums I can't see anything
about '64-bit'. What I'm assuming the OP is interested is 64-bit block
numbers because they said they want to "convert ext4 fs on this server
to 64bit so that I can grow it past 16TB limit". Note from me, 4kB
sized blocks * 2^32 = 16TB, so block numbers whould need to be more
than 32-bit for bigger drives.
--
Tixy
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