Xfs maximum file size

Thanks for keeping this document updated. I last looked at it in and was happy to see it was updated at the end of Note on the ext3 comments posted in ext3 was better than ext2 but with the advent of ext4 we found that converting filesystems from ext3 to ext4 made many operations quite a bit faster for large filesystems..

For large filesystems we had turned off automatic fsck because this could be excruciatingly slow booting a server relying on ext3. For ext4 even when running a "full" fsck it is much faster and allowed us to re-enable automatic check parameters.

I cannot create a 20TB file system in Ext4 or Ext3. Is it possible to use Ext3 for a very large file system 16 TB and above? If not, which file system is recommended for very large file systems? What is the maximum file size supported within a file system? Resolution This following information can be found in the File systems and storage limits section in our Red Hat Enterprise Linux versions comparison chart: Red Hat Enterprise Linux technology capabilities and limits.

Notes The GFS2 file system is based on a bit architecture, which can theoretically accommodate an 8 EiB file system. Log in to comment. DK Newbie 5 points. Danjou Kaoru. How do you mean by "theoretical" max? And Can redhat support it technically? Lo Community Member 55 points.

Life Insurance Corporation of India. Red Hat Active Contributor points. Marc Skinner. Yes, mkfs. SB Active Contributor points.

Santosh Bombe. SG Expert points. Sergey Guzenkov Community Leader. RS Active Contributor points. Ramanuj Singh. Have you found a solution for extending the FS beyond 16TB.? Even I am getting the same error. JL Pro points. Jeffrey Lightner. Sam Yangsao. Here are the common uses of Markdown. Learn more Close. It only takes a minute to sign up.

Connect and share knowledge within a single location that is structured and easy to search. Documentation for XFS claims its current theoretical maximum file size is 8 exbibytes - 1 byte. However, I am wondering how this calculation was computed? I cannot seem to find discussion of this elsewhere, and I am also curious if there is a way for me to verify this if I have the filesystem mounted? In general, even if the size isn't explicitly stored, two things must be: where the chunks of data are stored, and how big each chunk can be.

You take the maximum value for each, and multiply to get the maximum file size. The specifics depend on each filesystem. Depending on the filesystem, the number of chunks itself can be a bit more complex to find out e. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams?

Learn more. How is the theoretical maximum file size on filesystems like XFS calculcated? Ask Question. Asked 8 months ago. Active 8 months ago. Viewed times. Improve this question.