> On May 23, 2017, at 14:33, Alexey Dokuchaev <da...@freebsd.org> wrote: > > On Tue, May 23, 2017 at 08:25:49PM +0000, Ed Maste wrote: >> New Revision: 318757 >> URL: https://svnweb.freebsd.org/changeset/base/318757 >> >> Log: >> Add note to UPDATING for ino64 to follow the standard upgrade process >> ... >> +20170523: >> + The "ino64" 64-bit inode project has been committed, which extends >> + a number of types to 64 bits. > > For the dumb people among us, what is it all about? E.g., what's so cool > about it?
64-bit inodes: more addressable inodes for bigger filesystems/disks.
From
https://lists.freebsd.org/pipermail/freebsd-fs/2017-April/024684.html :
“”"
Inodes are data structures corresponding to objects in a file system,
such as files and directories. FreeBSD has historically used 32-bit
values to identify inodes, which limits file systems to somewhat under
2^32 objects. Many modern file systems internally use 64-bit identifiers
and FreeBSD needs to follow suit to properly and fully support these
file systems.
“””
With Isilon OneFS we currently support multiples of petabytes of
storage (
https://www.emc.com/collateral/hardware/white-papers/h10719-isilon-onefs-technical-overview-wp.pdf
), so this matters very much to us. It’s also useful for other file systems
though (assuming they can scale that high).
Cheers,
-Ngie
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